| 单词 | strontium |
| 例句 | Americans dutifully adopted the new term, but many British users disliked aluminum, pointing out that it disrupted the –ium pattern established by sodium, calcium, and strontium, so they added a vowel and syllable. A Short History of Nearly Everything 2003-05-06T00:00:00Z And when the fire blossoms are flashing blue he goes, "Good old strontium nitrate!" and I'm thinking whoa! is there anything this little dude doesn't know? Freak The Mighty 1993-10-01T00:00:00Z Soon after taking up his position, Davy began to bang out new elements one after another–potassium, sodium, magnesium, calcium, strontium, and aluminum or aluminium, depending on which branch of English you favor.* A Short History of Nearly Everything 2003-05-06T00:00:00Z Of course, the radioactive strontium they ate was concentrated in their bones, and the radioactive iodine was concentrated in their thyroids. Cosmos 1980-01-01T00:00:00Z Even Ben has a crisis, ranting about strontium 90 in the rain and Caryl Chessman in the gas chamber. Jonas Mekas’s Debut Is an Artifact of Beat-Era New York 2020-01-23T05:00:00Z By analyzing oxygen and strontium isotope data, they were able to draw conclusions about his geographical locations and his diet. The Richard III Diet: Wild Birds, Frequent Feasts and Plenty of Wine 2014-08-18T04:00:00Z Data from strontium isotopes indicate that this interpersonal violence occurred between local groups, not between local and foreign populations. New study reveals a long history of violence in ancient hunter-gatherer societies 2023-09-21T04:00:00Z Greenpeace said on Tuesday that the radiological risks have not been fully assessed, and the biological impacts of tritium, carbon-14, strontium-90 and iodine-129 - to be released with the water - "have been ignored". Explainer: Fukushima: Why is Japan releasing water and is it safe? 2023-08-24T04:00:00Z The researchers began by measuring how much of the element strontium was present in the water in different parts of the basin. Klamath countdown: Researchers hustle before largest dam-removal project begins 2023-03-29T04:00:00Z They discovered the animals had come from Scandinavia by analysing the strontium in their bones. Horses and dogs sailed with Vikings to Britain, say scientists 2023-02-01T05:00:00Z They began testing strontium titanate, an oxide that is classified as a ceramic because it is neither metal nor organic. K. Alex Müller, Innovator in Ceramic Superconductors, Dies at 95 2023-01-18T05:00:00Z Calcium and strontium produce shades of red, whereas barium produces a green color. Chemistry 2019-02-14T00:00:00Z As herbivorous dinosaurs digested ferns and conifers, for example, isotopes of oxygen, carbon and strontium from those plants accumulated in different proportions. Dinosaur Diets May Help Explain Dramatic Diversity 2022-07-01T04:00:00Z "When juvenile salmon rear in the basin, depending on where they are, they're picking up these strontium signatures in their ear bones," he explains. Klamath countdown: Researchers hustle before largest dam-removal project begins 2023-03-29T04:00:00Z This migratory detective work focused on strontium and oxygen isotopes in the tusks. Fred the Mastodon’s Tusks Reveal a Life of Fighting and Roaming 2022-06-13T04:00:00Z There are several species of optical clock, each counting the ticks of a different atom or ion — ytterbium, strontium, mercury, aluminum and more. Get Ready For the New, Improved Second 2022-04-25T04:00:00Z Sodium peroxide and the peroxides of calcium, strontium, and barium form by heating the corresponding metal or metal oxide in pure oxygen: Chemistry 2019-02-14T00:00:00Z "They were not enriched with calcium and strontium as we would have expected," DePalma said, which could suggest that the impactor was an asteroid. "Beyond our wildest dreams": Scientists find fossil from dinosaur that died the day the asteroid hit 2022-04-11T04:00:00Z Based on the strontium values, they can learn where the juveniles spent their time. Klamath countdown: Researchers hustle before largest dam-removal project begins 2023-03-29T04:00:00Z Joshua Miller, a paleoecologist from the University of Cincinnati and an author of the study, described strontium isotopes as leaving signals all over the landscape. Fred the Mastodon’s Tusks Reveal a Life of Fighting and Roaming 2022-06-13T04:00:00Z Most of the rock bits contain high levels of strontium and calcium — indications that they were part of the limestone crust where the meteor hit. Shards of Asteroid That Killed the Dinosaurs May Have Been Found in Fossil Site 2022-04-07T04:00:00Z Most sulfates are soluble in water; however, the sulfates of barium, strontium, calcium, and lead are only slightly soluble in water. Chemistry 2019-02-14T00:00:00Z One is strontium-90, which can cause cancer in bones and bone marrow, as well as leukemia. The U.S. Must Take Responsibility for Nuclear Fallout in the Marshall Islands 2022-04-04T04:00:00Z In the case of Chernobyl, the three most dangerous leaked elements were iodine-131, strontium-90 and cesium-137, which respectively have half-lives of eight days, 29 years and 30 years. The Russian military nearly caused a nuclear catastrophe when capturing Ukrainian nuclear plant 2022-03-11T05:00:00Z Interpreting these geographical references and matching them onto the landscape takes one more step: a map of how strontium isotopes change across terrain. Fred the Mastodon’s Tusks Reveal a Life of Fighting and Roaming 2022-06-13T04:00:00Z “They were not enriched with calcium and strontium as we would have expected,” he said. Shards of Asteroid That Killed the Dinosaurs May Have Been Found in Fossil Site 2022-04-07T04:00:00Z The carbonate ion concentration is gradually increased in a solution containing equal concentrations of the divalent cations of magnesium, calcium, strontium, barium, and manganese. Chemistry 2019-02-14T00:00:00Z Despite international research interest, U.S. government scientists have largely ignored the effects of strontium-90 in the Marshall Islands. The U.S. Must Take Responsibility for Nuclear Fallout in the Marshall Islands 2022-04-04T04:00:00Z The radioactive strontium, caesium and plutonium mainly affected Ukraine and neighboring Belarus, as well as parts of Russia and Europe. Explainer: Why Russia and Ukraine are fighting for Chernobyl disaster site 2022-02-25T05:00:00Z The strontium is absorbed by the surrounding soil and water and enters the food chain when animals eat plants that grow in the soil and drink the local water. Mysteries of Ancient Egypt’s Sacred Baboons Revealed 2021-11-17T05:00:00Z Optical lattice clocks instead strike strontium atoms with optical light and measure emitted optical light, which has a frequency that is 100,000 times higher than that of microwaves. COVID Advances Win $3-million Breakthrough Prizes 2021-09-09T04:00:00Z A silvery, alkaline earth metal called strontium comes in different versions, or isotopes, each with a different atomic mass. Mammoth Tusk Analysis Reveals Epic Lifetime Journey around Alaska 2021-09-09T04:00:00Z The DOE’s recent report to Congress, for example, mentioned strontium-90 only once. The U.S. Must Take Responsibility for Nuclear Fallout in the Marshall Islands 2022-04-04T04:00:00Z From there, a computer program compared the strontium levels with a map of what is found in the rocks of Alaska and calculated the likeliest path that Kik walked. A Woolly Mammoth’s Tusks Reveal a Map of Where It Roamed in Life 2021-08-12T04:00:00Z Strontium in an individual’s teeth, which develop early, can thus reveal where it was born; strontium in bone and hair, which change throughout life, can show where it lived just prior to death. Mysteries of Ancient Egypt’s Sacred Baboons Revealed 2021-11-17T05:00:00Z The researchers pieced together the animal's journey by studying the different types, or isotopes, of the chemical elements strontium and oxygen contained in the 1.5m-long tusk. Tusk reveals woolly mammoth's massive lifetime mileage 2021-08-12T04:00:00Z When mammals eat plants growing in these soils, small amounts of strontium are incorporated into their bones and teeth—and, in the case of mammoths, their tusks, which are modified incisors. Mammoth Tusk Analysis Reveals Epic Lifetime Journey around Alaska 2021-09-09T04:00:00Z In a recent study, we tested sediment from two bomb craters in the northern Marshall Islands, and found consistently high values of strontium-90. The U.S. Must Take Responsibility for Nuclear Fallout in the Marshall Islands 2022-04-04T04:00:00Z Other researchers measured strontium isotopes in teeth and bones, which preserve chemical signatures of where a person grew up and lived. A racist scientist built a collection of human skulls. Should we still study them? 2021-07-08T04:00:00Z We compared the strontium compositions of the mummies’ bones and teeth with those of baboons living in various regions across Africa. Mysteries of Ancient Egypt’s Sacred Baboons Revealed 2021-11-17T05:00:00Z Noble gases such as xenon and krypton are byproducts of fission along with particles of cesium, strontium and other radioactive elements. China says nuclear fuel rods damaged, no radiation leak 2021-06-15T04:00:00Z The researchers then measured the ratios of strontium isotopes along the five-and-a-half-foot-long tusk and compared them to create an itinerary of where the mammoth wandered. Mammoth Tusk Analysis Reveals Epic Lifetime Journey around Alaska 2021-09-09T04:00:00Z The scientific community needs to reexamine the general dismissal of strontium-90, given our findings. The U.S. Must Take Responsibility for Nuclear Fallout in the Marshall Islands 2022-04-04T04:00:00Z Radioactive elements such as cesium and strontium are many times more dangerous to human health than tritium and are many times more likely to accumulate inside fish and on the sea floor, he said. A decade after Fukushima nuclear disaster, contaminated water symbolizes Japan’s struggles 2021-03-05T05:00:00Z My colleagues and I focused on the element strontium because its composition in bedrock differs from place to place. Mysteries of Ancient Egypt’s Sacred Baboons Revealed 2021-11-17T05:00:00Z The strontium composition, which is related to erosion, starkly shifted. Earth’s mountains may have mysteriously stopped growing for a billion years 2021-02-11T05:00:00Z Their team analyzed the teeth and bones of 73 victims, measuring strontium and oxygen isotope ratios. Shrine of decapitated heads suggests violence against foreigners in ancient Mexico 2020-12-17T05:00:00Z Dozens of men exposed themselves to innumerable cesium-137 and strontium-90 isotopes, every particle rampaging through their DNA, irreparably mutating it. Trump's Chernobyl moment: Phony patriotism can't defeat this virus 2020-10-06T04:00:00Z It involved lab tests of strontium isotopes in a part of a fish’s ear. What’s the Deal With Google Now? 2020-09-24T04:00:00Z By comparing the balance of strontium isotopes in enamel with those in the region’s soil, researchers can judge where an individual grew up. ‘Invasion’ of ancient Egypt may have actually been immigrant uprising 2020-07-15T04:00:00Z Takata and colleagues also took advantage of the fact that electrons and holes in their strontium titanate crystals collect at different crystal facets — a feature that further suppresses charge recombination. An almost perfectly efficient light-activated catalyst for producing hydrogen from water 2020-05-26T04:00:00Z The report said that spill accounts for most of the strontium-90 to the groundwater at the tank farm, with three other locations at the tank farm accounting for the rest. Radioactive waste cleanup paying off for giant Idaho aquifer 2020-05-21T04:00:00Z To confirm their origins, he and his adviser Johannes Krause extracted DNA and analyzed chemical isotopes, including strontium, carbon, and nitrogen, from their teeth. Three men were buried in Mexico 500 years ago. DNA and bones reveal their stories of enslavement 2020-04-30T04:00:00Z And strontium isotopes preserved in trophy heads uncovered in the Wari heartland site of Conchopata show the victims grew up elsewhere, evidence that Wari warriors captured and sacrificed people from faraway lands, she says. Shrewd water use helped South America’s first empire thrive. So why did a drought destroy it? 2020-04-16T04:00:00Z As teeth form in childhood, tiny quantities of strontium metal in food are incorporated into the enamel. ‘Invasion’ of ancient Egypt may have actually been immigrant uprising 2020-07-15T04:00:00Z The observed properties of the proton emission allowed the authors to deduce the structure of the proton-emitting state in rubidium-73, and, from this, the structure of the ground state of strontium-73. Mirror symmetry broken for nuclear ground states 2020-03-31T04:00:00Z Soils contain levels of strontium and neodymium isotopes that vary from region to region, but stay constant over the centuries—especially at the depths tapped by the roots of oak trees. Scientists are leading Notre Dame’s restoration—and probing mysteries laid bare by its devastating fire 2020-03-12T04:00:00Z The nickel acts as a stressor — it provides enough strain energy to overcome the weak bonds between the film and the strontium ruthenate. A platform for making and transferring oxide films 2020-02-04T05:00:00Z In the hours, days, and weeks after the explosion, radioactive elements including plutonium, iodine, strontium, and caesium contaminated a region of roughly 150,000 square kilometers in Belarus, Russia, and Ukraine. What Is Chernobyl Like Today? 2020-01-23T05:00:00Z In strontium ruthenate, electron interactions are also strong, but they do not change the fundamental character of the metallic state. Superconductivity mystery turns 25 2019-12-08T05:00:00Z The Tri-City Herald reports the 324 Building sits over a leak of radioactive cesium and strontium into the soil beneath it at the site just north of Richland and west of the Columbia River. Contamination stops work at Hanford project 2019-11-20T05:00:00Z This seems to be the case for strontium titanate, a cubic crystal commonly used as a substrate for growing films of other oxides. Temperature-dependent polarization in a non-polar crystal 2019-11-17T05:00:00Z The end result: five Earth masses worth of strontium. Some of the universe’s heavier elements are created by neutron star collisions 2019-10-23T04:00:00Z But a scatter diagram presented in the lawsuit shows its ratios of barium to nickel and strontium to zinc fall far outside the norms for Kona. The Kona coffee you buy from Costco and Walmart? It might be fake 2019-09-15T04:00:00Z The research community is still hard at work on the mystery of strontium ruthenate. Superconductivity mystery turns 25 2019-12-08T05:00:00Z The detected isotopes of barium, strontium and lanthanum would be created in the core of a nuclear reactor, which produces energy by splitting uranium atoms in a chain reaction. How nuclear scientists are decoding Russia’s mystery explosion 2019-08-29T04:00:00Z Electrical polarity might not be the only surprising thing about the surface of strontium titanate. Temperature-dependent polarization in a non-polar crystal 2019-11-17T05:00:00Z Soon, moving along the rows of the periodic table like a beachcomber on a shore, Cade began to experiment with salts of rubidium, cerium and strontium. Lithium: the gripping history of a psychiatric success story 2019-08-25T04:00:00Z Russia’s state weather and environmental monitoring agency said Monday the brief rise in radiation levels was caused by a cloud of radioactive gases containing isotopes of barium, strontium and lanthanum that drifted across the area. Russian agency reveals details of radiation after explosion 2019-08-26T04:00:00Z Therefore, the nature of unconventional superconductivity in strontium ruthenate must be considered unresolved. Superconductivity mystery turns 25 2019-12-08T05:00:00Z Russia’s state weather and environmental monitoring agency said Monday the brief rise in radiation levels was caused by a cloud of radioactive gases containing isotopes of barium, strontium and lanthanum that drifted across the area. Russian agency reveals details of radiation after explosion 2019-08-26T04:00:00Z The waste includes isotopes of iodine, strontium, americium, plutonium, uranium and other unstable elements, many of which are toxic as well as radioactive. Nuclear waste will be classified as safer under a controversial Trump administration change 2019-06-05T04:00:00Z The contamination of the contract worker’s clothes involved strontium, and was detected March 28 as he left a radiological area of the shuttered research laboratory known as the 324 Building. Setbacks reported in Hanford cleanup site close by Richland and the Columbia River 2019-05-20T04:00:00Z Three papers2–4 now report the cooling and confinement of individual strontium and ytterbium atoms. The next step in making arrays of single atoms 2019-03-24T04:00:00Z The researchers measured the isotope ratios of five of these chemicals: strontium, oxygen, sulfur, carbon, and nitrogen. Stonehenge-like monuments were home to giant pig feasts. Now, we know who was on the guest list 2019-03-13T04:00:00Z As an animal feeds and drinks, strontium, a type of metal found in soil, is incorporated into their body tissues, including bones. The turkey on your Thanksgiving table is older than you think 2018-11-21T05:00:00Z But for many people, Strontian might sound familiar because of strontium, an element of the periodic table. The community that built its own school 2018-09-26T04:00:00Z The source of the strontium, which was removed from the clothing with a piece of tape, was not identified. Setbacks reported in Hanford cleanup site close by Richland and the Columbia River 2019-05-20T04:00:00Z CEO Ben Bloom says the company will pursue qubits made of atoms with two valence electrons instead of rubidium's one, such as calcium and strontium. Arrays of atoms emerge as dark horse candidate to power quantum computers 2018-09-26T04:00:00Z Evans had previously mapped different strontium isotopes across Britain for this purpose. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Strontium values in the El Mirador turkeys match the local strontium values at the site, which are very different from the values found in central Mexico. The turkey on your Thanksgiving table is older than you think 2018-11-21T05:00:00Z By comparing strontium levels recorded at different locations with those found in human remains, a person’s movements over the final decade of life can be revealed. Stonehenge cremations shed light on where mysterious monument builders came from 2018-08-02T04:00:00Z In an April 12 report, the inspectors noted that strontium was detected on one worker’s clothes. Setbacks reported in Hanford cleanup site close by Richland and the Columbia River 2019-05-20T04:00:00Z “We are not big fans of that,” Tom Carpenter of the watchdog group Hanford Challenge said of leaving the strontium 90 in the groundwater. Deal reached to clean land around 3 US plutonium reactors 2018-07-31T04:00:00Z For his PhD research, he developed a way to identify strontium in cremated bones from Northern Ireland. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Atmospheric chemist Kim Prather will do a spot check for the metal, and look for strontium, copper and other chemicals associated with fireworks. Monitoring the air around July Fourth fireworks for signs of dangerous lead 2018-07-04T04:00:00Z Normally, bones are unsuitable for this form of analysis, Snoeck says, because they absorb strontium from the soil “blurring the ‘biological’ signal.” Stonehenge cremations shed light on where mysterious monument builders came from 2018-08-02T04:00:00Z Her colleagues also analyzed isotopes of strontium and oxygen that the teeth and bones had absorbed. Feeding the gods: Hundreds of skulls reveal massive scale of human sacrifice in Aztec capital 2018-06-21T04:00:00Z When waters are cooler, corals use more of the element strontium to supplement the calcium carbonate they use to build their skeletons. Cores from Coral Reefs Hold Secrets of the Seas' Past and Future 2018-06-06T04:00:00Z Archaeologists can detect different versions of strontium, called isotopes, preserved in tooth enamel. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Fission products, such as radioactive caesium, strontium, xenon and krypton, must be still lingering in the tunnel. Why North Korea's denuclearization plan doesn't convince this nuclear expert 2018-05-22T04:00:00Z But the high temperatures of cremation modified the structure of the bone, he says, effectively sealing in the strontium as it was at death. Stonehenge cremations shed light on where mysterious monument builders came from 2018-08-02T04:00:00Z “I’m delighted that there’s no strontium in children’s milk now, but it does complicate our assessment of North Korea’s nuclear tests,” Lewis says. How scientists keep a global watch for nuclear explosions 2018-05-09T04:00:00Z It will be employed in conjunction with a method that he has previously used to examine strontium isotopes in tooth enamel. Researcher investigates Arkansas burial ground mystery 2018-05-06T04:00:00Z Strontium collects in tooth enamel formed in childhood; strontium in bones should give a snapshot of the last 10 to 15 years of a person's life. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Meanwhile, strontium isotope levels in teeth — which are set during childhood — suggested that most females weren’t local. Divided by DNA: The uneasy relationship between archaeology and ancient genomics 2018-03-27T04:00:00Z The strontium in their bones suggests at least 10 lived in western Britain, most probably west Wales, before death, rather than near Stonehenge, the researchers conclude today in Scientific Reports. Stonehenge cremations shed light on where mysterious monument builders came from 2018-08-02T04:00:00Z Like carbon nuclei, those of strontium have two stable isotopes. Dogs and cats may have been involved in Maya rituals 2018-03-21T04:00:00Z Lead has six isotope ratios, compared with one for strontium, making it a better marker for the research. Researcher investigates Arkansas burial ground mystery 2018-05-06T04:00:00Z Snoeck, meanwhile, was developing a technique to identify the element strontium, a metal deposited in bedrock, within cremated remains. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Look carefully at the bright pixel between the metal probes: that’s one strontium atom. Boosters, bacteria and human-sized drones — February’s top science images 2018-03-01T05:00:00Z The photo shows a pinprick of a positively charged strontium atom illuminated by a blue-violet light on a black background. How a Student Took a Photo of a Single Atom 2018-02-14T05:00:00Z Dr Sharpe’s analysis of strontium in the animals’ teeth showed that two of the dogs had not been born and raised locally. Dogs and cats may have been involved in Maya rituals 2018-03-21T04:00:00Z Lead and strontium are elements that occur naturally and would have been in the soil and plants. Researcher investigates Arkansas burial ground mystery 2018-05-06T04:00:00Z "The strontium is usually related to the underlying geology, and this gives us geographic information," said Jane A. Evans, an archaeologist at the British Geological Survey who was not involved with this research. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z "I was toxic in aluminium, barium, strontium, arsenic, manganese. And I live very healthily." The people who think governments control the weather 2018-01-30T05:00:00Z At 38 protons and 215 billionths of a millimeter across, strontium atoms are relatively large by comparison. How a Student Took a Photo of a Single Atom 2018-02-14T05:00:00Z At their lab, the scientists analyzed the flakes for sulfur, oxygen and strontium isotopes. Uncovering an Overlooked Source for Iconic Alabaster Statues 2017-10-23T04:00:00Z The ever-shifting suite of technologies used at the site produced uniquely toxic brews that include radioactive caesium, strontium, americium and residual plutonium; salts; heavy metals; and myriad industrial chemicals. How the United States plans to trap its biggest stash of nuclear-weapons waste in glass 2017-10-09T04:00:00Z Those Neolithic bones did, however, match the strontium isotopes found in Wales. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Copper compounds, for example, throw off blue light, strontium produces red fireworks, sodium makes yellow, and barium glows green. How Hollywood and the Army are shaping the future of fireworks 2017-07-04T04:00:00Z The luminescent colors are due to sunlight interacting with the chemicals barium, strontium and cupric-oxide, the U.S. NASA experiment to color the skies over the U.S. East Coast 2017-06-11T04:00:00Z Other scientists performed isotope tests to measure oxygen, strontium, and nitrogen levels in the man’s bones. This Explosion Was the Biggest Blast Before Atomic Bombs 2017-06-06T04:00:00Z She hasn’t, because “testing objects is expensive”, but she’s done seven water tests on her ponds, and says they turned up abnormal levels of aluminum, barium and strontium. My month with California’s conspiracy theorist farmers 2017-05-22T04:00:00Z The Wessex chalk beneath Stonehenge, which stretches for at least nine miles in every direction, has a very specific strontium profile. People buried at Stonehenge 5,000 years ago came from far away, study finds 2018-08-02T04:00:00Z Plus, additional testing showed the presence of rare earth elements such as cerium and strontium sulfide. Does that evidence truly tie D.B. Cooper to Boeing? Plot thickens 2017-01-20T05:00:00Z One of her more well-known research endeavors was the Baby Tooth Survey, in which she and colleagues studied how fallout from nuclear testing affected the level of radioactive strontium-90 in children’s teeth. Gone in 2016: 10 notable women in science and technology we lost last year 2017-01-03T05:00:00Z The theory has been popularized on websites that display photographs of contrails but are described instead as chemtrails that persist in the atmosphere and contain harmful chemicals like strontium, barium and aluminum. Scientists Just Say No to ‘Chemtrails’ Conspiracy Theory 2016-08-15T04:00:00Z But to Tammi, a 54 year-old organic farmer, it’s a “chemtrail”: a toxic cocktail of aluminum, strontium and barium sprayed from planes in a plot to control the weather, the population and our food supply. My month with California’s conspiracy theorist farmers 2017-05-22T04:00:00Z Stable isotope analysis of strontium and oxygen in the individuals’ teeth will enable scientists to learn if they were native Londoners or if they moved to the city from elsewhere. DNA in London Grave May Help Solve Mysteries of the Great Plague 2016-09-08T04:00:00Z For instance, barium compounds emit green, red comes from strontium, and blues are made with copper. Quiet fireworks: Less bang can be more colorful 2016-07-02T04:00:00Z For instance, barium compounds emit green, red comes from strontium and blues are made with copper. Oh, Say, Can You See (but Not Hear) Those Fireworks? 2016-06-30T04:00:00Z These sea-floor features spew spectacular plumes of geothermally heated water and chemicals into the ocean, and are the major suppliers of strontium to the ocean. Harry Elderfield (1943-2016) : Nature : Nature Publishing Group 2016-05-17T04:00:00Z Downstream, there were detectable levels of chemicals that commonly lace fracking waste — barium, bromide, calcium, chloride, sodium, lithium, strontium. This mystery was solved: Scientists say chemicals from fracking wastewater can taint fresh water nearby 2016-05-11T04:00:00Z When consumed, scientists say strontium-90 mimics the behavior of calcium in the human body, settling in bones. AP Exclusive: Test finds Chernobyl residue in Belarus milk 2016-04-25T04:00:00Z It has been treated — Tepco says it can remove 62 nuclides from the water, including strontium, which can burrow into bones and irradiate tissue. How is Fukushima’s cleanup going five years after its meltdown? Not so well. 2016-02-10T05:00:00Z Fireworks cause "a dizzying rise in micro particles of substances harmful to health, such as strontium, barium, copper, aluminum, titanium and iron," Mayor Giuseppe Falcomata said. New Year fireworks fall victim to Italy's smog crisis 2015-12-30T05:00:00Z Strontium isotope stratigraphy, a term coined by Elderfield to describe the mapping of strontium isotopes in layers of rock, is now widely used to date sediments. Harry Elderfield (1943-2016) : Nature : Nature Publishing Group 2016-05-17T04:00:00Z Gestsdóttir’s research using strontium isotopes on the earliest skeletons found in Iceland revealed numerous people with values higher than seawater, confirming origins in Scandinavia or northern Europe. Archaeologists Find Viking Families Among Skeletons in Northern Iceland 2015-08-10T04:00:00Z It was aged at approximately 50 million years old, based on strontium isotope dating. Fossilised sperm found in Antarctica is world's oldest, say scientists 2015-07-14T04:00:00Z For red, you want a strontium compound, and for green, you need a barium compound. The chemistry behind a firework explosion 2015-07-03T04:00:00Z A team of scientists led by Karin Margarita Frei from the National Museum of Denmark analysed girl's teeth for levels of the radioactive element strontium. Bronze Age Danish girl 'German-born' 2015-05-21T04:00:00Z With Martin Palmer, who had been a student of Elderfield's at Leeds, he developed the strontium isotope curve for seawater for the past 75 million years. Harry Elderfield (1943-2016) : Nature : Nature Publishing Group 2016-05-17T04:00:00Z The researchers cut the hair into four segments and looked at the strontium ratios in each one. Coffin remains tell life story of ancient sun-worshiping priestess 2015-05-21T04:00:00Z "There's long been a need for cesium, strontium, and radium contamination issues to be handled in such a way that it protects the environment and food supplies." This chemical could protect plants from radioactive fallout at Fukushima 2015-03-05T05:00:00Z Radioactive capsules containing highly radioactive isotopes of cesium and strontium are stored underwater at the Waste Encapsulation Storage Facility at DOE’s Hanford site in Washington State. Can't We Just Throw Our Nuclear Waste Down A Deep Hole? 2015-03-05T05:00:00Z Ms Frei and Mr Kristiansen said they now plan to analyse strontium levels in other human remains found in Denmark to piece together the stories of more prehistoric lives. Bronze Age Danish girl 'German-born' 2015-05-21T04:00:00Z Analysing the ratios of strontium isotopes taken from sediments of known age, the pair mapped the changes in the isotopic ratio in the ocean over time. Harry Elderfield (1943-2016) : Nature : Nature Publishing Group 2016-05-17T04:00:00Z The wool fibers from her clothes, as well as the ox hide on which she was laid, also revealed strontium ratios from outside Denmark. Coffin remains tell life story of ancient sun-worshiping priestess 2015-05-21T04:00:00Z The research, which led to the founding of the Radiation and Public Health Project, found higher strontium levels in the baby teeth of children living closer to the plants. Ernest Sternglass, Physicist and Nuclear Critic, Dies at 91 2015-02-20T05:00:00Z Agee’s team had pegged it at 2.1 billion years, based on a radiometric dating of rubidium and strontium, averaged across the sample in bulk. Feature: A castaway from ancient Mars 2014-11-25T05:00:00Z The conclusions about this ash drink were based on measuring levels of strontium in the gladiators' bones. Gladiators were 'mostly vegetarian' 2014-10-22T04:00:00Z Weathering pulls carbon dioxide out of the atmosphere and vents release the gas, so the strontium isotope curve provides a proxy for tectonic processes that are crucial to the carbon cycle. Harry Elderfield (1943-2016) : Nature : Nature Publishing Group 2016-05-17T04:00:00Z Researchers usually look at teeth, which absorb the element when an individual is very young and whose strontium ratios do not change after about 3 or 4 years of age. Coffin remains tell life story of ancient sun-worshiping priestess 2015-05-21T04:00:00Z While strontium is a naturally occurring element, a radioactive version is a byproduct of nuclear weapons tests and nuclear power-plant releases, such as the one in Chernobyl in 1986, according to the Nuclear Regulatory Commission. EPA weighs new move to regulate drinking water 2014-10-20T04:00:00Z At NPL they are experimenting with the elements strontium and ytterbium that operate at far, far higher frequencies - right up in the optical rather than the microwave spectrum. The element that redefined time 2014-10-03T04:00:00Z A second clue was the extremely low abundance of the elements barium and strontium. Hints of elusive early stars found 2014-08-21T04:00:00Z The elevated strontium and oxygen isotope levels in Richard's teeth indeed suggest he was living in an area with higher rainfall and older rocks — which both point to western Britain. Richard III Really Ate and Drank Like a King 2014-08-18T04:00:00Z Inside the complex, there are three wrecked reactor cores, twisted masses of hundreds of tons of highly radioactive uranium, plutonium, cesium and strontium. Assessing Fukushima Damage Without Eyes on the Inside 2014-06-17T04:00:00Z Ionizing radiation, like that produced by cesium, strontium and other radioactive isotopes, affects living tissue in several ways, among them by breaking strands of DNA. At Chernobyl, Hints of Nature’s Adaption 2014-05-05T21:40:37Z A strontium clock developed in the US would only have lost a second since the earth began: it is accurate to a second in five billion years. The element that redefined time 2014-10-03T04:00:00Z It’s a rare combination of strontium, calcium, chromium, sulphur, carbon, oxygen and hydrogen that’s completely distinct from any of the other 4,000 known minerals in the world. The world’s newest mineral is unlike anything we’ve ever seen before 2014-04-26T19:00:00Z The legal limit for releasing strontium 90 into the ocean is 30 becquerels per liter. New Highly Radioactive Leak at Japan's Fukushima Plant 2014-02-20T04:53:24Z The legal limit for releasing strontium into the ocean is 30 becquerels per liter. Tepco took months to release record strontium readings at Fukushima 2014-02-13T07:00:50Z Some created as a result of nuclear fission, such as strontium and caesium, are unstable and emit harmful radiation until they decay to a stable state. Soviets performed nuclear blasts at Siberian oilfield to be shared with China 2013-10-25T10:29:24Z The sun was dethroned, and caesium took its place - though one wonders how long it will be before strontium or ytterbium knocks caesium off its perch. The element that redefined time 2014-10-03T04:00:00Z Tritium represents the lowest radioactive threat to ocean life and humans compared with cesium and strontium. Radioactive Water Leaks from Fukushima: What We Know 2013-08-13T18:15:00.680Z We found that there were actually quite a few examples of elevated constituents, such as heavy metals, the main players being arsenic, selenium and strontium. High Levels of Arsenic Found in Groundwater Near Fracking Sites 2013-08-08T22:15:06.900Z A Tepco spokesman said there was uncertainty about the reliability and accuracy of the September strontium reading, so the utility decided to re-examine the data. Tepco took months to release record strontium readings at Fukushima 2014-02-13T07:00:50Z It investigated only after Japan's new nuclear watchdog expressed alarm earlier this month at Tepco's own reports of huge spikes in radioactive cesium, tritium and strontium in groundwater near the shore. Japan Utility, and the Public, in the Dark about Crippled Nuclear Power Plant 2013-07-31T15:45:09.047Z In those sediments, the team looked for geochemical "fingerprints"—specifically, geochemical ratios of neodymium to strontium isotopes—that would help them identify the provenances, or sources, of the different layers of sediments. East Antarctica's Ice Sheet Not as Stable as Thought 2013-07-21T18:20:00Z By comparison, strontium poses a greater danger because it replaces the calcium in bones and stays for much longer in the body. Radioactive Water Leaks from Fukushima: What We Know 2013-08-13T18:15:00.680Z The new drug contains radium 223, which targets bone and emits alpha particles that are far more massive and energetic than the beta particles emitted by older radioimmunotherapies like strontium. Well: New Radiation Therapy Prolongs Prostate Cancer Survival 2013-07-17T21:25:13Z Radioactive cesium and strontium, especially, are known to raise risks of cancer in humans. Japanese Nuclear Plant May Have Been Leaking for Two Years 2013-07-10T23:29:45Z Absorbing cesium, plutonium and strontium helps contain radionuclides within the exclusion zone, but it dramatically heightens the alarm over wildfire. At Chernobyl, Radioactive Danger Lurks in the Trees 2013-06-24T14:45:00.143Z The vitrification project calls for the waste to be analyzed chemically and radiologically before it enters a pretreatment facility to be separated into various constituents such as cesium 137, strontium 90 and metals. Hanford Nuclear Waste Cleanup Plant May Be Too Dangerous 2013-05-09T12:15:03.177Z The strontium ratios of Mesolithic peoples along the Danube reflected the river sediments on which they lived. Ancient Foragers and Farmers Hit It Off 2013-02-11T20:40:00Z Traces of strontium and other elements that accumulate in bones and other tissues led to Nigeria, and eventually to an area near Benin City. Isotope Analysis Provides Clues in a Florida Cold Case 2012-11-12T20:07:25Z He found his political voice when he encountered the indifference of government authorities to the high levels of strontium 90 in the atmosphere from atomic tests. Barry Commoner Dies at 95 2012-10-01T16:31:09Z Set to assess plume and radionuclide behavior, the two-acre ground fire near the failed power plant released up to five percent of the cesium and strontium in the biomass. At Chernobyl, Radioactive Danger Lurks in the Trees 2013-06-24T14:45:00.143Z The origin of the goods is determined by measuring the levels of strontium isotopes in the material. Ancient Burial Cloth Provides Clues To Bronze Age Trade 2012-09-30T06:30:02Z By comparing strontium ratios in teeth with those of the local environment, researchers can distinguish between people who grew up in a particular area and immigrants who grew up somewhere else. Ancient Foragers and Farmers Hit It Off 2013-02-11T20:40:00Z In Adam’s case the strontium signature matched pre-Cambrian rock in Nigeria. Isotope Analysis Provides Clues in a Florida Cold Case 2012-11-12T20:07:25Z Also, precipitates of strontium telluride 2 to 10 nanometers wide target shorter wavelengths. Materials for Converting Waste Heat to Energy Pass Critical Milestone 2012-09-19T19:55:00Z I understand the brine and magnesium, but we’re getting high levels of strontium and high levels of bromide coming out of these discharges. Gas profiteers’ shocking crimes 2012-08-18T13:00:00Z By assessing ratios of calcium, barium and strontium as well as the number of strontium isotopes, the team was able to deduce both diet and the size of the area that these individuals ranged over. Early Meat-Eating Human Ancestors Thrived While Vegetarian Hominin Died Out 2012-08-08T22:15:07.253Z Instantly, values for the abundances of rubidium and strontium appear as curves on a computer screen. Planetary science: The time machine 2012-07-25T17:20:40.527Z When radioactive strontium appeared in Hilo, Hawaii milk, the Honolulu Star-Advertiser stated matter-of-factly in a headline that the radiation was “no cause for concern.” Should We Hide Low-Dose Radiation Exposures From The Public? 2012-05-29T17:59:29Z The skeletons' teeth were analysed for strontium isotopes, and results differed between those who were buried with tools called adzes, and those who were not. 'Inequality' of Stone Age farmers 2012-05-29T06:26:58Z Specifically, the team looked for the element strontium in teeth and measured the ratio of two isotopes, or types of the atom with slightly different weights. Occupy the Neolithic 2012-05-28T20:00:00Z The team created the quasiparticles by firing a beam of X-ray photons at a single electron in a one-dimensional sample of strontium cuprate. Electron Splits into Quasiparticles 2012-04-19T14:45:00.253Z Next, another, precisely tuned laser fires two shots, nanoseconds apart, to excite only the electrons in the strontium atoms in the cloud. Planetary science: The time machine 2012-07-25T17:20:40.527Z In the ocean, says Ken Buesseler, a marine chemist at Woods Hole Oceanographic Institution in Massachusetts, radioactive plutonium and strontium seem to be finding their way into fish and bottom-feeders living near the reactor. Nuclear crisis: Fukushima's legacy of fear 2012-03-07T18:20:26.903Z Heat strontium theosulphate for fifteen minutes over a good Bunsen gas lamp and then for 5 minutes over a blast lamp. Scientific American, Vol. XXXIX.?No. 24. [New Series.], December 14, 1878 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:31.783Z The strontium isotopes are increasingly used by archaeologists to track movements of populations. Occupy the Neolithic 2012-05-28T20:00:00Z In the year 1808 he succeeded in decomposing the three earths, lime, baryta and strontia, and in obtaining the metals calcium, barium and strontium, but not in a perfectly pure condition, or in any quantity. Heroes of Science Chemists 2011-12-09T03:00:21.047Z By the time Anderson gets round to explaining his part — the rubidium–strontium geochronometer — he has three minutes to talk about the thing he has been working on for eight years. Planetary science: The time machine 2012-07-25T17:20:40.527Z Researchers further narrowed the date by studying tree rings for strontium, an element trees absorb from the fallen debris of an eruption. Volcanic Destruction? Not Always 2011-12-07T16:14:00Z Heat equal parts of strontium carbonate and lac sulphuris gently for 5 minutes, then strongly for 25 minutes over a Bunsen lamp, and finally 5 minutes over a blast lamp. Scientific American, Vol. XXXIX.?No. 24. [New Series.], December 14, 1878 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:31.783Z Only the most important components are shown in the table, but all granites contain also small amounts of zirconia, titanium oxide, phosphoric acid, sulphur, oxides of barium, strontium, manganese and water. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Officials in Yokohama south of Tokyo said on the same day they found radioactive strontium and cesium in two samples of sediment. Japan to Open Hotlines to Allay Public Concerns Over Radiation 2011-10-20T04:37:01Z Potassium and argon are more abundant in common minerals than rubidium and strontium, which makes them easier to measure. Planetary science: The time machine 2012-07-25T17:20:40.527Z The trees near Sunset Crater showed a strontium spike in year 1085. Volcanic Destruction? Not Always 2011-12-07T16:14:00Z Shades of more or less depth or intensity are imparted by adding to the tin chloride a little nitrate of strontium or barium. Scientific American, Vol. XXXIX.?No. 24. [New Series.], December 14, 1878 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:31.783Z In Yokohama, officials are testing samples in an area of Kohoku ward after a resident removed sediment from an apartment building roof that laboratory tests showed contained strontium found in radioactive fallout. Tokyo Districts Expand Radiation Checks After High Readings 2011-10-13T05:07:01Z The government also reported a rare detection of strontium, another highly dangerous element, far from the crippled reactor, in one spot as far away as 50 miles. Japan Finds Plutonium Far From Reactor 2011-10-01T06:07:04Z The announcement comes two weeks after the state announced it found traces of another radioactive isotope, strontium-90, in a fish caught in the river near the Vermont Yankee plant. Radioactive tritium found in river near Vermont Yankee plant 2011-08-18T18:40:52Z There is absolutely no evidence to suggest that Vermont Yankee is the source for the strontium-90. How Did Those Vermont Fish Get Radioactive? 2011-08-05T12:40:32Z The Health Department asked for additional analysis on the fish obtained on June 9, 2010 that contained the strontium-90 and also on other fish samples. Vermont finds contaminated fish as nuclear debate rages 2011-08-02T23:15:05.757Z The ratio of those two isotopes reflects the region where individuals lived as children—when their teeth were forming—because the strontium from soil is incorporated into the plants and animals that they ate. Ancient Female Ancestors Roamed Far and Wide for Mates 2011-06-01T18:01:00Z The ratio of two strontium isotopes in bones or teeth provides a signature of the local environment in which an animal grew up, Lee-Thorp says. Female Australopiths Left Home Once Mature, Males Didn't 2011-06-01T21:45:00.307Z To determine whether that was because they ranged far and wide, the researchers then looked at strontium isotopes, the ratio of which varies according to the local geology. Teeth of Human Ancestors Hold Clues to Their Family Life 2011-06-01T17:54:51Z No groundwater sample from any well at Vermont Yankee has ever indicated the presence of strontium-90, or any other isotope other than tritium. How Did Those Vermont Fish Get Radioactive? 2011-08-05T12:40:32Z These fragments were then analysed to test for particular isotopes, or forms, of the metallic element strontium, which can reveal the geological region where individuals were raised. Ancient cave women 'left home' 2011-06-01T17:01:39Z Testing for strontium is a complex process that takes time.” Radioactive Strontium Found in Hilo, Hawaii Milk 2011-04-27T12:45:02Z Lee-Thorp and her colleagues measured the levels of two isotopes of strontium, an element found in soil. Female Australopiths Left Home Once Mature, Males Didn't 2011-06-01T21:45:00.307Z The researchers were measuring different versions, or isotopes, of strontium to see if the australopithecines traveled far from home in search of food. Teeth of Human Ancestors Hold Clues to Their Family Life 2011-06-01T17:54:51Z A “bone-seeker,” strontium-90 is chemically similar to calcium, so the body deposits it in bone and marrow, where it is known to cause cancer. How Did Those Vermont Fish Get Radioactive? 2011-08-05T12:40:32Z This is because particular isotopes of strontium dominant within a geological region are digested by individuals living there and incorporated into their tooth enamel. Ancient cave women 'left home' 2011-06-01T17:01:39Z The two man-made isotopes of strontium—Sr-89 and Sr-90—are among the most dangerous products of nuclear fission to human and animal health. Radioactive Strontium Found in Hilo, Hawaii Milk 2011-04-27T12:45:02Z Last year, the state adopted new regulations that require most plants that accept drilling waste to meet strict standards for removing pollutants, including barium and strontium. Gas Drillers Asked to Change Method of Waste Disposal 2011-04-19T23:57:18Z In australopithecines, the absorption of strontium continued until the teeth were completed around age 8. Teeth of Human Ancestors Hold Clues to Their Family Life 2011-06-01T17:54:51Z Radioactive isotopes of strontium are particularly dangerous to the growing bones of fetuses and children. How Did Those Vermont Fish Get Radioactive? 2011-08-05T12:40:32Z Workers at the stricken Fukushima Daiichi plant fighting to keep additional radioactive iodine, cesium, strontium and other harmful elements from being released into the environment are monitored daily for exposure to radiation. Dose Detectives: Device Analyzes Radiation Exposure through Teeth and Nails [Slide Show] 2011-04-15T11:45:00.253Z Thus, numbers that appear in EnviroFacts as minute or negative quantities of strontium and plutonium may appear as “non-detectable” in public data releases. Radioactive Strontium Found in Hilo, Hawaii Milk 2011-04-27T12:45:02Z Calcium, cerium, lithium, magnesium, potassium, sodium, and strontium are obtained by the electrolysis of fused chlorides, sodium being also obtained from fused hydroxide and fused nitrate. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z On Tuesday, Japan's science ministry said small amounts of strontium, one of the most harmful radioactive elements, had been found in soil near Fukushima Daiichi. Japan says nuclear crisis stabilizing, time to rebuild 2011-04-13T02:20:16Z The strontium found in the fish last summer was higher than current background levels, but within background levels measured in the Connecticut River in 1971. How Did Those Vermont Fish Get Radioactive? 2011-08-05T12:40:32Z Mention is here made of the formation of saccharates of barium, strontium, and calcium in low concentrations. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z If temperatures rise higher, threatening to melt the core entirely, he added, less volatile products such as strontium 90 and plutonium 239 join the rising plume. From Far Labs, a Vivid Picture Emerges of Japan Crisis 2011-04-02T19:55:19Z But when their cows last summer ended up drinking from a suspected leak in a drilling wastewater pond —slurping up water contaminated with the radioactive element strontium — that was too much. The Gas Dilemma 2011-03-31T07:05:00Z Currently, Krejci says, there are hundreds of millions of liters of stored nuclear waste in the United States alone, much of which contains strontium. Algae holds promise for nuclear clean-up 2011-03-30T19:45:08.487Z “Iodines, cesium and strontium are concentrated in other types of seafood,” she continued. Higher Radiation Levels Found at Japanese Reactor 2011-03-27T07:15:15Z Once contaminants such as cesium-137 and strontium-90 get into the soil, though, plants absorb them, and they enter the food chain. The Future of Fukushima Prefecture 2011-03-24T04:10:41Z Posted to 80% Of Waste from California Walmarts Diverted From Landfills “radioactive cesium, strontium and iodine are bad bad stuff that you don't want to inhale. they are also beta emitters,...” Options For Replacing Japan's Busted Nukes 2011-03-21T04:29:19Z At the checkpoint leading to the exclusion zone, there is a small statue of the Virgin Mary and a placard listing the amounts of cesium and strontium found in mushrooms, fish and wild game. Lessons From Chernobyl for Japan 2011-03-19T22:28:46Z But strontium is midway between calcium and barium in size and properties, so any of it that happens to be around gets crystallized as well. Algae holds promise for nuclear clean-up 2011-03-30T19:45:08.487Z "You can have a very small total body radiation dose and end up getting thyroid cancer, or ingest some radioactive strontium and end up getting leukemia." Health Risk Fears Escalate as Japan Nuclear Plant's Radioactive Release Remains Uncertain 2011-03-18T20:45:02.373Z For instance, cesium-137 mimics potassium and is absorbed by muscles, while strontium-90 mimics calcium and is taken up by bones. Quake Question #8: What Impact Will the Radiation Have on Marine Life? 2011-03-16T22:40:43Z But cesium, plutonium and strontium would still be present in large quantities. Wind and Rain Steer Radiation?s Reach 2011-03-16T01:46:43Z "This is uncharted territory," said Mr. Ferguson.A plume of radioactive materials including more iodine and strontium would be released. Radiation Effects Vary 2011-03-16T00:17:09Z The result is a crystal that is mainly composed of barium, but is massively enriched in strontium. Algae holds promise for nuclear clean-up 2011-03-30T19:45:08.487Z Iodine-131 and cesium-137 were both very broadly transported hundreds of kilometers, while strontium-90 remained in dust just 30 kilometers from the power plant and plutonium traveled only four kilometers or so. The worst nuclear plant accident in history: Live from Chernobyl 2011-03-15T12:15:07.357Z The accident at the Chernobyl nuclear power plant, for example, released a large quantity of strontium-90 into the environment, depositing it in the then-Soviet republics, northern Europe and elsewhere. Dangers of a Damaged Nuclear Plant 2011-03-13T23:46:27Z More troubling, cesium and strontium linger not just in the body, but in the environment. Assessing the Radiation Risk 2011-03-12T21:47:02Z But one unmistakable symptom of core damage would be a plume of radio-isotopes such as cesium-137, iodine-131 and strontium-90 escaping in the steam being vented from the plant. Radiation Effects Vary 2011-03-16T00:17:09Z For the moment, she knows that the organism isn't purposefully bringing excess barium and strontium through its cell walls. Algae holds promise for nuclear clean-up 2011-03-30T19:45:08.487Z Barium and strontium have also been produced by electro-metallurgical methods, but the processes have only a laboratory interest at present. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The teeth were sent to the laboratory at Washington University, which tested them for strontium 90, one of more than 100 chemicals created in nuclear explosions and reactors. Dr. Louise Reiss, Who Helped Ban Atomic Testing, Dies at 90 2011-01-10T05:31:09Z In addition, the Nuclear Regulatory Commission calculated that the doses from radioactive strontium in the environment add only about 0.3 percent to the average American’s background exposure. Study of Baby Teeth Sees Radiation Effects 2010-12-13T19:26:00Z Further research is needed to establish whether residents of other parts of the Inca realm possessed a strontium signature like that of Cuzco-region natives, she adds. Clues to Child Sacrifices Found in Inca Building 2010-09-23T15:17:00Z But even if the organisms respond poorly, she says, they would probably live long enough to start removing strontium, because the process begins quickly. Algae holds promise for nuclear clean-up 2011-03-30T19:45:08.487Z According to experts, the types of radioactive isotopes that might still be active in the Bryansk area include strontium 90 and caesium 137. Few Chernobyl radiation risks from Russia fires 2010-08-12T14:23:00Z The study ultimately found that children born in St. Louis in 1963 had 50 times as much strontium 90 in their teeth as children born in 1950 — before most of the atomic tests. Dr. Louise Reiss, Who Helped Ban Atomic Testing, Dies at 90 2011-01-10T05:31:09Z The study measured the ratio of calcium, a basic building block of teeth and bones, to strontium 90, which is absorbed just as calcium is. Study of Baby Teeth Sees Radiation Effects 2010-12-13T19:26:00Z Radioactive isotopes include strontium 90 and cesium 137. Russia fires cause "brown cloud," may hit Arctic 2010-08-10T15:14:00Z Yet another contender uses atoms such as strontium confined in an optical lattice -- a grid made up of intersecting laser beams -- that retards the atoms' motion, a notorious source of error. 2010-01-05T05:00:00Z Other alkalies are calcic hydroxide or slaked lime, a solution of which in water is known as lime-water; baric hydroxide and strontic hydroxide, derived from the metals barium and strontium. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide During a second testing phase, it found a 50 percent decline in strontium 90 in children born in 1968, compared with those born five years earlier, immediately after the treaty went into effect. Dr. Louise Reiss, Who Helped Ban Atomic Testing, Dies at 90 2011-01-10T05:31:09Z It combines with chlorides of the alkali metals to form double salts, and also with barium, calcium, strontium, and magnesium chlorides. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Chemically, chabazite is a complex hydrated calcium and sodium silicate, with a small proportion of the sodium replaced by potassium, and sometimes a small amount of the calcium replaced by barium and strontium. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" The mineral is used also as a source of various salts of strontium such as the nitrate, which finds application in pyrotechny for the production of red fire. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" Calcium colors the flame orange-red, distinguished from strontium, by appearing gray when seen through blue glass. The Elements of Blowpipe Analysis They were delighted, and when they got to the X-ray booth, to induce them to stand still we set up a gas torch with a beautiful, vermilion, strontium flame. The Test Colony Ammonium carbonate is added to the filtrate; this precipitates calcium, strontium and 63 barium. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Instantly it burst into a flare of crimson fire, hanging aloft as though it were a fire balloon, and lighting up road and creek and bushes and fields with a brilliant strontium glare. The Dark Star Celestine is much used for the preparation of strontium hydrate, which is employed in refining beetroot sugar in Germany. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" "Flame-prominences," on the other hand, show, in addition, the characteristic rays of a number of metals, among which iron, titanium, barium, strontium, sodium, and magnesium are conspicuous. A Popular History of Astronomy During the Nineteenth Century Fourth Edition We pointed out to each other the lines of hydrogen, sodium, strontium, and many others, all of which were truly depicted, both in colour and position. To Mars via The Moon An Astronomical Story The solution free from barium is treated with ammonia and ammonium sulphate, which precipitates strontium, and the calcium in the solution may be identified by the white precipitate with ammonium oxalate. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" We may mention calcium, iron, hydrogen, sodium, carbon, nickel, magnesium, cobalt, aluminium, chromium, strontium, manganese, copper, zinc, cadmium, silver, tin, lead, potassium. The Story of the Heavens While Herschel was working out his spectrum analysis, Fox Talbot contributed his share by his observation of the orange line of strontium. A History of the Nineteenth Century, Year by Year Volume Two (of Three) During the same decade he conducted important investigations into the nature of chemical combination, and succeeded in isolating the elements potassium, sodium, strontium, magnesium, and chlorine. The World's Greatest Books — Volume 15 — Science It was thought by many, during the discourse, that I had mistaken strontium for lithium, as this blue band had never before been seen. Fragments of science, V. 1-2 In 1808 Davy isolated sodium and potassium; he then turned his attention to the preparation of metallic calcium, barium, strontium and magnesium. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" There is, for instance, a splendid red light sometimes seen in displays of fireworks, due to the metal strontium. The Story of the Heavens The alkaline-earth family consists of the very abundant element calcium and the much rarer elements strontium and barium. An Elementary Study of Chemistry Well-crystallized material, such as Iceland-spar, usually consists of perfectly pure calcium carbonate, but at other times the calcium may be isomorphously replaced by small amounts of magnesium, barium, strontium, manganese, zinc or lead. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" It is dried, ignited and weighed as strontium sulphate. A Text-book of Assaying: For the Use of Those Connected with Mines. The next group may contain the white calcium, barium and strontium carbonates. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" I placed the steel tank near the cage, uncoiled the hose attachment, unscrewed the top, and dumped in the salts of strontium. In Search of the Unknown The corresponding salts of the three elements are very similar to each other and show a regular variation in properties in passing from calcium to strontium and from strontium to barium. An Elementary Study of Chemistry In its chemical properties it closely resembles barium and strontium, and to some degree magnesium; these four elements comprise the so-called metals of the "alkaline earths." Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" The solution contains the barium as baric chloride mixed, perhaps, with salts of strontium or lime. A Text-book of Assaying: For the Use of Those Connected with Mines. An immediate precipitate indicates barium; a precipitate on standing indicates strontium. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The rosium oxide and salts of strontium are to be dumped into the tank together. In Search of the Unknown Write equations to represent the reactions involved in the preparation of strontium hydroxide and strontium nitrate from strontianite. An Elementary Study of Chemistry The red flame-arc owes its color chiefly to strontium, whose characteristic visible spectrum consists chiefly of red and yellow rays. Artificial Light Its Influence upon Civilization Solution.—All sulphates, excepting those of lead, barium, strontium, and lime, are soluble in water or dilute acid. A Text-book of Assaying: For the Use of Those Connected with Mines. The only thing to do is to give medicines to meet the indications; fifteen to twenty grain doses of lactate of strontium. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Driftwood and the pyrotechnic fuel they make now by soaking sticks in strontium and copper salts cannot compare with the old-fashioned corn-fed fire in beauty and the power of evoking visions. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Like strontium, it closely resembles calcium both in the properties of the metal and in the compounds which it forms. An Elementary Study of Chemistry For example, strontium fluoride is used in the red flame-arc whose radiant energy is rich in red and yellow. Artificial Light Its Influence upon Civilization Lead sulphate may be extracted by boiling with ammonic acetate; whilst barium, strontium, and, perhaps, calcium sulphate, will be mainly found in the residue insoluble in acids. A Text-book of Assaying: For the Use of Those Connected with Mines. Beryllium, it will be observed, is very simple, whereas calcium and strontium are complicated. Occult Chemistry Clairvoyant Observations on the Chemical Elements He will recognize it by the color; because strontium gives a red light which nothing else will give. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky All sulphates are soluble save those of barium, strontium, and lead. An Elementary Study of Chemistry The chloride of calcium gives a red tinge, but not nearly so decided as the chloride of strontium. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations In this last case it may be examined for barium and strontium, the former of which will rarely be present. A Text-book of Assaying: For the Use of Those Connected with Mines. There is, thus, nothing new in strontium, but only repetitions of forms already studied. Occult Chemistry Clairvoyant Observations on the Chemical Elements The red tint has, no doubt, been produced by strontium also. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky The sulphides of calcium, barium, strontium, and magnesium are insoluble in water, but are changed by hydrolysis into acid sulphides which are soluble. An Elementary Study of Chemistry The deepest red color is produced by the chloride of strontium, particularly at the first moment of applying the heat. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The chlorides of copper, lithium, and strontium yield, in like manner, the bands of these metals. Six Lectures on Light Delivered In The United States In 1872-1873 We noted a similar close resemblance between the positive strontium and the negative molybdenum. Occult Chemistry Clairvoyant Observations on the Chemical Elements We have accordingly learned to recognize two substances, namely, strontium and sodium, by the different lights which they give out when burning. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky The method of preparation of strontium hydroxide is analogous to that of calcium hydroxide. An Elementary Study of Chemistry Strontia.—Moisten a small piece of the chloride of strontium, put it in the platinum forceps and submit it to the flame of reduction, when the outer flame will become colored of an intense red. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is not isomorphous with the orthorhombic barium and strontium sulphates, as might be expected from the chemical formulae. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 It is indeed a phosphori as, if I recall it aright, the sulphides of barium, strontium, and calcium were upon our earth. The Certainty of a Future Life in Mars Other hazards are strontium-90, an electron emitter with a half-life of 28 years, and iodine-131 with a half-life of only 8 days. Worldwide Effects of Nuclear War: Some Perspectives All hydroxides are insoluble save those of ammonium, sodium, potassium, calcium, barium, and strontium. An Elementary Study of Chemistry The substance becomes reduced to sulphide of barium and sulphide of strontium, when it should be dissolved in hydrochloric acid. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This is especially the case with the chlorides of potassium or barium, the bromides of strontium or calcium, and the iodides of aluminum or magnesium. Scientific American Supplement, No. 401, September 8, 1883 He saw the long white electric sparks change to crimson with the strontium, to purple with the potassium, to yellow with the manganese. The Doings of Raffles Haw A bone-seeker like strontium-90, it may also become lodged in the lungs, where its intense local radiation can cause cancer or other damage. Worldwide Effects of Nuclear War: Some Perspectives Thus calcium, strontium, and barium are very much alike; so, too, are magnesium, zinc, and cadmium. An Elementary Study of Chemistry It appears that the nitrate of strontium renders the leaves half torpid. Insectivorous Plants Several other elementary earths met the same fate when subjected to the electrical influence; the metals barium, calcium, and strontium being thus discovered. A History of Science — Volume 4 Then in rapid succession the elementary substances sodium, calcium, strontium, and magnesium were isolated. A History of Science — Volume 3 The resemblance between calcium and magnesium, or strontium and zinc, is much less marked. An Elementary Study of Chemistry Only a few of the compounds of strontium have any commercial applications. An Elementary Study of Chemistry Two salts of calcium, four of magnesium, two of barium, and two of strontium, did not cause any inflection, and thus follow the rule of the preponderant power of the base. Insectivorous Plants |
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