| 单词 | negatively charged |
| 例句 | How Mg** ions might be used to bind negatively charged phosphate groups in the center of a compound helix. Double Helix 1968-02-27T00:00:00Z Ernest Rutherford depicted the atom as a miniature solar system, with negatively charged electrons surrounding a tiny yet massive nucleus consisting of positively charged protons and negatively charged electrons. Big Science 2015-07-07T00:00:00Z "Rather," as Timothy Ferris explains, "the negatively charged fields of the two balls repel each other...were it not for their electrical charges they could, like galaxies, pass right through each other unscathed." A Short History of Nearly Everything 2003-05-06T00:00:00Z Thomson proposed a structural model for the atom in which his negatively charged electrons were suspended within an undifferentiated positively charged mass, like bits of fruit within a soft custard. Big Science 2015-07-07T00:00:00Z If true, then before serious model building began, a decision would have to be made whether the chains would be held together by hydrogen bonds or by salt linkages involving the negatively charged phosphate groups. Double Helix 1968-02-27T00:00:00Z The electromagnetic attraction between negatively charged electrons and positively charged protons in the nucleus causes the electrons to orbit the nucleus of the atom, just as gravitational attraction causes the earth to orbit the sun. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Thus, under physiological conditions, there would always be positively charged ions like sodium or magnesium lying nearby to neutralize the negatively charged phosphate groups. Double Helix 1968-02-27T00:00:00Z Others admit negatively charged particles, which suppress neural activity. Science-fiction turns real: Genetically engineering animals for war 2013-03-23T19:00:00Z Protons are positively charged, and electrons are negatively charged; when the two are combined, electricity is generated. The power of pee: Kids in England learn how urine can create electricity 2016-08-30T04:00:00Z It is a world full of shifting ions, the negatively charged particles known as cations and the positive anions, and molecular transformations, and yes, it is all as dense as a jungle thicket. Why gardens need fertilizer — or not 2015-02-10T05:00:00Z In mathematics, two negatives multiplied together equals a positive; in “Dark Sacred Night,” however, the pairing of these two negatively charged detectives only intensifies the despair. Review | Two loner detectives find each other in Michael Connelly’s darkly brilliant new novel 2018-10-30T04:00:00Z A positively or negatively charged molecule is passed through the cell membrane into a special receptor. The Spark of Life by Frances Ashcroft – review 2012-07-13T21:55:09Z These cluster roots exude negatively charged compound called carboxylate that can liberate phosphorus from the soil and make it available for the plant to use. Pulses are packed with goodness 2023-02-23T05:00:00Z Salts are compounds with positively charged cations and negatively charged anions, with some of the most abundant ones being calcium, magnesium, potassium and sulfate ions. Humans are disrupting natural 'salt cycle' on a global scale, new study shows 2023-10-31T04:00:00Z It refines more than 90% of the world's graphite into the material used in almost all EV battery anodes, which is the negatively charged portion of a battery. Analysis: China's graphite curbs will accelerate plans around alternatives 2023-10-23T04:00:00Z It allows protons to pass through but blocks electrons, forcing them to flow through an external circuit from the negatively charged anode to the positively charged cathode, thereby producing an electric current. Generating clean electricity with chicken feathers 2023-10-20T04:00:00Z Graphite is used in virtually all EV battery anodes, which is the negatively charged portion of a battery. Graphite buyers to boost imports ahead of China's curbs - analysts 2023-10-20T04:00:00Z It also refines more than 90% of the world’s graphite into the material that is used in virtually all EV battery anodes, which is the negatively charged portion of a battery. China, world's top graphite producer, tightens exports of key battery material 2023-10-20T04:00:00Z At this point, the star’s magnetic field was arranged as a relatively tidy dipole, where one pole is positively charged, and the other pole negatively charged. The Sun’s Magnetic Poles Are Vanishing 2023-10-20T04:00:00Z LEDs beam out light when electrons - negatively charged particles - within the device drop from a higher energy state to a lower one. The incredible power of blue LEDs 2023-10-16T04:00:00Z Gong's lab previously developed synthetic binders for positively charged ions called cations, but chloride is a negatively charged ion, or anion. Synthetic molecules can 'ferry' mucus-clearing ions blocked by cystic fibrosis 2023-10-10T04:00:00Z When a negatively charged electron is excited by light, it leaves behind a positive hole. Physicists find evidence for magnetically bound excitons 2023-10-05T04:00:00Z The antimatter counterpart to the negatively charged electron, for example, is the positron, which has the same mass and spin but a positive charge rather than a negative one. What Happens if You Drop Antimatter? New Gravitational Test Sees First Fall 2023-09-27T04:00:00Z A hydrogen atom is made up of a positively charged proton in the middle and negatively charged electron orbiting it. Scientists get closer to solving mystery of antimatter 2023-09-27T04:00:00Z Meanwhile, sodium ions remain on the other side of the membrane, attracted to the negatively charged electrode. New method for purifying drinking water could be used in disaster zones 2023-09-21T04:00:00Z For instance, many dynamic materials are held together with hydrogen bonds, in which positively charged hydrogen atoms attract other, negatively charged atoms. Shape-Shifting, Self-Healing Machines Are Among Us 2023-07-26T04:00:00Z The element accepting the electron is now negatively charged. Concepts of Biology 2013-04-25T00:00:00Z To speed this transport even more, Yang and his team also modified their triazine starting materials so that the rigid pores were lined with negatively charged sulfonate groups. New molecular membranes could slash costs for storing green energy 2023-04-26T04:00:00Z The bottoms of rain clouds are naturally filled with negatively charged water. Rainmaking Experiments Boom Amid Worsening Drought 2023-02-07T05:00:00Z Spiders spin negatively charged webs that reach out to trap positively charged insects, and they use the electric fields of trees to float through the air. There’s Lightning Brewing in Every Swarm of Insects 2022-10-26T04:00:00Z Similarly, the electroscope can be negatively charged by contact with a negatively charged object. College Physics for AP Courses 2015-08-12T00:00:00Z A negatively charged chloride ion is surrounded by the partially positive charges of hydrogen atoms in water molecules. Concepts of Biology 2013-04-25T00:00:00Z The interaction between the bonding positively charged nuclei and negatively charged electrons stabilizes the system. Chemistry 2019-02-14T00:00:00Z The reason they do not is that the electrons that surround all atoms are negatively charged and negative charges repel each other. Biology for AP Courses 2022-06-09T00:00:00Z Positively charged hummingbirds pull negatively charged plant stamens toward their beaks. There’s Lightning Brewing in Every Swarm of Insects 2022-10-26T04:00:00Z As shown in the figure above, two metal balls are suspended and a negatively charged rod is brought close to them. College Physics for AP Courses 2015-08-12T00:00:00Z Because cells contain proteins, most of which are negatively charged, and because ions move into and out of cells, there is an electrical gradient, a difference of charge, across the plasma membrane. Concepts of Biology 2013-04-25T00:00:00Z It was learned that an atom contains a very small nucleus composed of positively charged protons and uncharged neutrons, surrounded by a much larger volume of space containing negatively charged electrons. Chemistry 2019-02-14T00:00:00Z As more cations are expelled from the cell than taken in, the inside of the cell remains negatively charged relative to the extracellular fluid. Biology for AP Courses 2022-06-09T00:00:00Z All atoms consist of a central, positively charged nucleus surrounded by negatively charged electrons. Astronomy 2016-10-13T00:00:00Z If the plates are held at a fixed potential difference ΔV, sketch the path of both a positively charged object placed between the near ends, and a negatively charged object placed near the open ends. College Physics for AP Courses 2015-08-12T00:00:00Z They can be large or small, weakly acidic or basic, hydrophilic or hydrophobic, positively or negatively charged, or neutral. Concepts of Biology 2013-04-25T00:00:00Z Beta particles, which are attracted to the positive plate and deflected a relatively large amount, must be negatively charged and relatively light. Chemistry 2019-02-14T00:00:00Z Other functional groups, such as the carbonyl group, have a partially negatively charged oxygen atom that may form hydrogen bonds with water molecules, again making the molecule more hydrophilic. Biology for AP Courses 2022-06-09T00:00:00Z Named the electron, this particle is negatively charged. Astronomy 2016-10-13T00:00:00Z For example, when glass is rubbed with silk, the glass becomes positively charged and the silk negatively charged. College Physics for AP Courses 2015-08-12T00:00:00Z As these icy particles bump into one another, they transfer electrical charges: the larger graupel tend to become negatively charged, whereas the smaller ice crystals end up with a positive charge. Salty Sea Spray Keeps Lightning Strikes Away 2022-08-02T04:00:00Z However, for some elements, energy is required for the atom to become negatively charged and the value of their EA is positive. Chemistry 2019-02-14T00:00:00Z Residues can be large or small, weakly acidic or basic, hydrophilic or hydrophobic, positively or negatively charged, or neutral. Biology for AP Courses 2022-06-09T00:00:00Z Like a typical chemical battery, it has a positively charged side called a cathode, a negatively charged side called an anode and a conductive material called an electrolyte between the two. Scientists Invent a Paper Battery—Just Add Water 2022-07-29T04:00:00Z Some atoms and molecules have a greater affinity for electrons than others and will become negatively charged by close contact in rubbing, leaving the other material positively charged. College Physics for AP Courses 2015-08-12T00:00:00Z Over time, this separation generates an electrical field between the cloud’s positively charged top and negatively charged bottom. Salty Sea Spray Keeps Lightning Strikes Away 2022-08-02T04:00:00Z Remember electrons are negatively charged, so ions with a positive charge have lost an electron. Chemistry 2019-02-14T00:00:00Z Phosphate groups are negatively charged and thus repel one another when they are arranged in series, as they are in ADP and ATP. Biology for AP Courses 2022-06-09T00:00:00Z When a radioactive process called beta decay occurs, it typically emits two particles: a negatively charged electron and a version of a tiny, neutrally charged neutrino. See the Strange Underground Detector Probing Neutrino Mysteries 2022-07-29T04:00:00Z For macroscopic objects, negatively charged means an excess of electrons and positively charged means a depletion of electrons. College Physics for AP Courses 2015-08-12T00:00:00Z The electron is the negatively charged particle in an atom. Miller & Levine Biology 2018-01-01T00:00:00Z The passage of a direct current through the cell causes the sodium ions to migrate to the negatively charged cathode and pick up electrons, reducing the ions to sodium metal. Chemistry 2019-02-14T00:00:00Z DNA is a negatively charged molecule; therefore, changes in the charge of the histone will change how tightly wound the DNA molecule will be. Biology for AP Courses 2022-06-09T00:00:00Z An electron is a negatively charged particle that travels in the space around the nucleus. Environmental Biology 2018-09-06T00:00:00Z Figure 4.26 The electric force field between a positively charged particle and a negatively charged particle. College Physics for AP Courses 2015-08-12T00:00:00Z When an electric voltage is applied to the gel, DNA molecules—which are negatively charged—move toward the positive end of the gel. Miller & Levine Biology 2018-01-01T00:00:00Z Atoms are electrically neutral if they contain the same number of positively charged protons and negatively charged electrons. Chemistry 2019-02-14T00:00:00Z The negatively charged chloride ion is surrounded by the partially positive charge of the hydrogen on the water molecule. Biology for AP Courses 2022-06-09T00:00:00Z As summarized in Table 2.1, protons are positively charged, neutrons are uncharged and electrons are negatively charged. Physical Geology 2015-01-01T00:00:00Z Thus a positively charged glass rod attracts neutral pieces of paper, as will a negatively charged rubber rod. College Physics for AP Courses 2015-08-12T00:00:00Z The atom gaining the electrons becomes negatively charged. Miller & Levine Biology 2018-01-01T00:00:00Z The mutual attraction between this negatively charged electron pair and the two atoms’ positively charged nuclei serves to physically link the two atoms through a force we define as a covalent bond. Chemistry 2019-02-14T00:00:00Z The sodium-potassium pump helps the development of negative charge inside the cell by making the membrane more permeable to negatively charged proteins. Biology for AP Courses 2022-06-09T00:00:00Z This atomic arrangement, with the positively charged hydrogens on one side and negatively charged oxygen on the other side, gives the water molecule. An Introduction to Geology 2017-01-01T00:00:00Z The proteins associated with these pores are negatively charged, so they tend to repel negatively charged substances and allow positively charged substances to pass more readily. Anatomy and Physiology 2013-06-19T00:00:00Z The positively and negatively charged atoms become ions. Miller & Levine Biology 2018-01-01T00:00:00Z Thomson’s cathode ray tube showed that atoms contain small, negatively charged particles called electrons. Chemistry 2019-02-14T00:00:00Z The presence of the negatively charged phosphate in the molecule also prevents the sugar from leaving the cell. Biology for AP Courses 2022-06-09T00:00:00Z A cloud of negatively charged electrons surrounds the nucleus, the number of electrons equaling the number of protons thus balancing the positive charge of the protons for a neutral atom. An Introduction to Geology 2017-01-01T00:00:00Z This means that the negatively charged electrons present in the water molecule are more strongly attracted to the oxygen nucleus than to the hydrogen nuclei. Anatomy and Physiology 2013-06-19T00:00:00Z The device combines two existing instruments in a vacuum chamber — an “orbitrap,” which harnesses positively charged ions in a small orbit around a negatively charged cathode, and a “magnetron,” which generates a stream of electrons. 2 Seattle startups racing to transform next-gen space travel 2022-06-26T04:00:00Z Positively charged ions are called cations, and negatively charged ions are called anions. Chemistry 2019-02-14T00:00:00Z When an axon is at rest, the membrane is said to be polarized; that is, there is an electrochemical gradient across it, with the inside of the membrane being more negatively charged than the outside. Biology for AP Courses 2022-06-09T00:00:00Z With 11 positively charged protons in the nucleus and 10 negatively charged electrons in two shells, sodium when forming chemical bonds is an ion with an overall net charge of +1. An Introduction to Geology 2017-01-01T00:00:00Z The cytosol contains a high concentration of anions, in the form of phosphate ions and negatively charged proteins. Anatomy and Physiology 2013-06-19T00:00:00Z This fluid is made up of positively and negatively charged ions—like the composition of table salt. New ‘Ionogels’ Are Tough, Stretchable and Easy to Make 2022-04-06T04:00:00Z Most metal hydroxide colloids have positive charges, whereas most metals and metal sulfides form negatively charged dispersions. Chemistry 2019-02-14T00:00:00Z Because more cations are leaving the cell than are entering, this causes the interior of the cell to be negatively charged relative to the outside of the cell. Biology for AP Courses 2022-06-09T00:00:00Z The net result is a radical pair made of a negatively charged FAD radical in the center of the protein and, two nanometers away, a positively charged tryptophan radical at the surface of the protein. How Migrating Birds Use Quantum Effects to Navigate 2022-03-15T04:00:00Z Just as a magnet sticks to a steel refrigerator because their opposite charges attract, the positively charged protons attract the negatively charged electrons. Anatomy and Physiology 2013-06-19T00:00:00Z Free calcium ions have a positive charge that attracts the negatively charged clay particles, encouraging aggregation. How to make the best of clay soil in the garden 2022-02-15T05:00:00Z Each of these microcapsules contains negatively charged white pigments and positively charged black pigments. BMW debuts its new color-changing paint technology at CES: E Ink 2022-01-05T05:00:00Z As a result of losing a negatively charged electron, they become positively charged ions. Biology for AP Courses 2022-06-09T00:00:00Z When each negatively charged electron started its race, a so-called hole, something like its shadow particle—identical to the electron but positively charged—moved with it. In a First, Physicists Glimpse a Quantum Ghost 2021-12-08T05:00:00Z Most physicists would say no, because the negatively charged electrons in their valence shells repel one another. Anatomy and Physiology 2013-06-19T00:00:00Z Physicists do this by monitoring one of the decay particles they create: electrons, from decays of negatively charged muons, or positrons—the antiparticle version of electrons—from decays of positively charged muons. Weird Muons May Point to New Particles and Forces of Nature 2021-09-14T04:00:00Z A positively charged ion, for example, can lower its charge by stealing some negatively charged electrons from atoms in the solid. Hidden Particle Interactions Exposed by Peeling Layers of Graphene 2021-09-02T04:00:00Z Group 17 elements, including fluorine and chlorine, have seven electrons in their outmost shells, so they tend to fill this shell with an electron from other atoms or molecules, making them negatively charged ions. Biology for AP Courses 2022-06-09T00:00:00Z Meanwhile the gas becomes electrified and, since it is negatively charged, generates a current while it moves. Scientists may have just cracked a great mystery about why "earthquake lightning" happens 2021-05-27T04:00:00Z A negatively charged ion is known as an anion. Anatomy and Physiology 2013-06-19T00:00:00Z “Defendants claim to use a proprietary ‘ionizer’ apparatus to apply an electrical current to this mixture, which allegedly creates positively charged and negatively charged solutions,” the federal civil complaint says. US enacts ‘Real Water’ recall amid reports of death, illness 2021-05-21T04:00:00Z The negatively charged electrons interact with the positively charged protons mainly through the electromagnetic force, which deflects the electrons. Neutron stars may be bigger than expected, measurement of lead nucleus suggests 2021-04-27T04:00:00Z For instance, positively charged sodium ions and negatively charged chloride ions bond together to make crystals of sodium chloride, or table salt, creating a crystalline molecule with zero net charge. Biology for AP Courses 2022-06-09T00:00:00Z Although exceedingly rare, cases of ‘spontaneous’ HIT in the absence of heparin treatment have been reported before, with suspected triggers including infection, knee replacement surgery and treatment with drugs that—like heparin—are negatively charged. How Could a COVID Vaccine Cause Blood Clots? 2021-04-12T04:00:00Z In these reactions, one atom gives up one or more electrons, and thus becomes positively charged, whereas the other accepts one or more electrons and becomes negatively charged. Anatomy and Physiology 2013-06-19T00:00:00Z Like heparin, DNA is negatively charged, which would help bind it to PF4, which has a positive charge. Hard choices emerge as link between AstraZeneca vaccine and rare clotting disorder becomes clearer 2021-04-11T04:00:00Z This technology uses positively and negatively charged ions to kill microscopic organisms, such as viruses in the air and on surfaces. Treat air quality to safeguard buildings from COVID-19 2020-11-12T05:00:00Z The stepped leader carries a positive charge, while streamers from the ground are negatively charged. How a Pacific storm fueled lightning that sparked California's biggest-ever fire season 2020-09-09T04:00:00Z HIT is thought to be the result of an immune reaction to complexes formed when negatively charged heparin molecules bind to a positively charged protein called platelet factor 4, which is important for clotting. How Could a COVID Vaccine Cause Blood Clots? 2021-04-12T04:00:00Z In normal lung tissue, the movement of Cl– out of the cell maintains a Cl–-rich, negatively charged environment immediately outside of the cell. Anatomy and Physiology 2013-06-19T00:00:00Z For a p–n junction, one of the semiconductors is p-type, containing an excess of positively charged electron vacancies called holes, and the other is n-type, containing an excess of negatively charged electrons. One-way supercurrent achieved in an electrically polar film 2020-08-18T04:00:00Z Mr. Bender said the technology, which would be installed in the ventilation system, generate positively and negatively charged oxygen ions. Ahead of Trump Visit, Church Makes Unproven Claim of Virus-Killing Technology 2020-06-23T04:00:00Z Electrons are negatively charged particles that orbit the nuclei of atoms. Scientists Waited Two and a Half Years to See Whether Bacteria Can Eat Rock 2020-05-02T04:00:00Z So Cetindag painted the negatively charged tubes with a positively charged coating; the molecules that made it up were too large to fit inside the BNNTs and thus left their channels open. Rivers could generate thousands of nuclear power plants worth of energy, thanks to a new ‘blue’ membrane 2019-12-04T05:00:00Z But when an atom participates in a chemical reaction that results in the donation or acceptance of one or more electrons, the atom will then become positively or negatively charged. Anatomy and Physiology 2013-06-19T00:00:00Z The CO2 flows out of the tube as exhaust, and an applied electric voltage pushes the negatively charged electrons through a wire to a second catalyst coating the tube’s outer surface. New reactor could halve carbon dioxide emissions from ammonia production 2019-11-06T05:00:00Z They absorb negatively charged electrons from the anode portion of the battery that produces energy. LG Chem plans to invest $424 million for battery material plant in... 2019-07-25T04:00:00Z Electrical transport occurs through negatively charged electrons in one region and through positively charged electron vacancies, called holes, in the other. Sunlight harvested by nanotubes 2019-06-18T04:00:00Z If they then dunk electrodes in the pools and connect them with a wire, electrons will flow from the negatively charged to the positively charged side, generating electricity. Rivers could generate thousands of nuclear power plants worth of energy, thanks to a new ‘blue’ membrane 2019-12-04T05:00:00Z Ions are charged atoms that form when an atom donates or accepts one or more negatively charged electrons. Anatomy and Physiology 2013-06-19T00:00:00Z That just left them to address the negatively charged electrode, or cathode. New generation of lithium-ion batteries could hold more charge—without catching fire 2019-05-08T04:00:00Z Hill delved into the chemistry of cartilage, which is made of spaghettilike collagen fibers surrounded by negatively charged proteins and positively charged sodium ions. New surgical method promises to take the knife out of plastic surgery 2019-04-05T04:00:00Z The positively charged protons move over to the other side of the cell, leaving behind the negatively charged electrons. Lightweight of periodic table plays big role in life on Earth 2019-03-17T04:00:00Z Cetindag then added negatively charged magnetic iron oxide particles to the mix, which affixed to the positively charged coatings. Rivers could generate thousands of nuclear power plants worth of energy, thanks to a new ‘blue’ membrane 2019-12-04T05:00:00Z The phosphate group is negatively charged, making the head polar and hydrophilic—or “water loving.” Anatomy and Physiology 2013-06-19T00:00:00Z The absorbed UV light caused the nanowires’ surfaces to become more negatively charged than their cores, the team found. Ultraviolet light could provide a powerful new source of green fuel 2019-02-19T05:00:00Z These positively charged ions are attracted to negatively charged structures on the plane called collectors. Radical experimental plane with no moving parts wows scientists 2018-11-21T05:00:00Z Those ions flow toward negatively charged parts of plane, colliding with ordinary air molecules and transferring energy to them. Experimental plane flies silently, may lead to quiet drones 2018-11-21T05:00:00Z That power boost, Shan says, is likely because the BNNTs they used are narrower, and thus do a better job of excluding negatively charged chloride ions. Rivers could generate thousands of nuclear power plants worth of energy, thanks to a new ‘blue’ membrane 2019-12-04T05:00:00Z Thus, cations, or positively charged ions, and anions, or negatively charged ions, are balanced in fluids. Anatomy and Physiology 2013-06-19T00:00:00Z The latter ionize the gas, creating a plasma that consists of positively charged ions and negatively charged electrons. Much cheaper, smaller atom smashers may be on the horizon 2018-08-29T04:00:00Z Cells throw negatively charged polySia on their membranes for a specific reason: to detach from a rigid matrix of cells and migrate somewhere else. Could a virus with a sweet tooth become a weapon against cancer? 2018-06-01T04:00:00Z Over time, the holes travel to the negatively charged electrode where they are filled with electrons from the external circuit. Solar cells that work in low light could charge devices indoors 2018-04-23T04:00:00Z Similar to lightning that forms in clouds, volcanic lightning occurs when electricity flows between positively and negatively charged particles. Volcanic Thunder Recorded for the First Time 2018-03-19T04:00:00Z Within the body, factor XII is typically activated when it encounters negatively charged molecules, such as inorganic polymers and phosphate produced earlier in the series of intrinsic pathway reactions. Anatomy and Physiology 2013-06-19T00:00:00Z Zhao et al. report that negatively charged amino-acid residues in the lateral portals influence the ion selectivity and other properties of the pore, supporting the notion that the portals form part of the ion-permeation pathway. Force-activated ion channels in close-up 2018-02-11T05:00:00Z The technique relies on the negatively charged nature of DNA. Watch a robot made of DNA swing its arm 2018-01-18T05:00:00Z The holes, meanwhile, are dumped into a charge-conducting liquid called an electrolyte, where they percolate through to the negatively charged electrode. Solar cells that work in low light could charge devices indoors 2018-04-23T04:00:00Z However, the authors found that naive cells lack negatively charged, membrane-spanning apical proteins called sialomucins, which induce the repulsion of contacting apical membranes to form a negatively charged gap in the centre of the rosette10. Early embryos kept in check Therefore, in comparison to the lumen of the loop, the interstitial space is now a negatively charged environment. Anatomy and Physiology 2013-06-19T00:00:00Z For instance, the antiparticle of the negatively charged electron is the positively charged positron, a particle that makes up the bulk of antimatter striking the top of Earth’s atmosphere from outer space. Through a Gas, Darkly: Scientists Trace the Origins of Earth's Antimatter 2017-11-16T05:00:00Z To perform experiments, we load the precision trap with a single antiproton and remove contaminants such as electrons and negatively charged ions with kick-out and high power radio-frequency pulses. A parts-per-billion measurement of the antiproton magnetic moment : Nature : Nature Research 2017-10-17T04:00:00Z An atom consists of a heavy center known as the nucleus, surrounded by a cloud of tiny negatively charged electrons. It Was a Universe-Shaking Announcement. But What Is a Neutron Star Anyway? 2017-10-16T04:00:00Z The atoms in normal matter are mostly empty space: a teeny tiny nucleus of positively charged protons and electrically neutral neutrons enveloped in a fluffy ephemeral cloud of negatively charged electrons. LIGO Detects Fierce Collision of Neutron Stars for the First Time 2017-10-16T04:00:00Z Proteins are made up of amino acids, which contain positively charged amino groups and negatively charged carboxyl groups. Anatomy and Physiology 2013-06-19T00:00:00Z Since electrons are negatively charged, ejecting them in this way keeps the tether positive. A new way of propelling spacecraft may open up the asteroid belt 2017-09-21T04:00:00Z Gas will be piped to the 20 fuel cells, starting an electrochemical reaction that extracts hydrogen atoms and sends a current of negatively charged electrons to power the servers below. Microsoft makes a ‘crazy’ bet on fuel cells to feed power-hungry data centers 2017-09-23T04:00:00Z One thread incorporates specks of a positively charged electrode, while the other weaves in negatively charged electrodes. Go ahead and cry — your tears might power the batteries of the future 2017-08-11T04:00:00Z “A lot of surfaces in the environment have negative charges,” said Smith, partly because everything is coated in negatively charged bacterial biofilms. Stretchy glue inspired by slugs could be the future of sutures 2017-07-27T04:00:00Z Using data beamed back to Earth, we identified the presence of negatively charged molecules called “carbon chain anions”. Life-Friendly Molecules on Saturn's Moon Titan Could Help Reveal Origins of Earth Life 2017-07-27T04:00:00Z The opposite electrode, called the anode, holds negatively charged ions. Longer-lasting batteries get a boost from molecular pulleys 2017-07-20T04:00:00Z Electrons, negatively charged particles orbiting the nucleus, are perhaps the most famous leptons. The Tao of Tau 2017-06-27T04:00:00Z The hanger relies on a proprietary technology called “nanoe,” which involves the releasing of nano-sized negatively charged particles into the air. Panasonic is releasing a deodorizing hanger that’ll rid your clothes of that grilled meat smell 2017-06-26T04:00:00Z "And then disrespectful features include questions, negatively charged words and using terms like 'bro' or 'man', or first names rather than titles," he said. Racial 'disparity' in police respect - BBC News 2017-06-05T04:00:00Z At any moment, atoms tend to be slightly positively charged on one side and negatively charged on the other, as a result of the random behavior of their electrons. Gecko-inspired gripper could help robots climb walls 2017-05-15T04:00:00Z As a meteor streaks through Earth’s atmosphere, it ionizes the air around it, splitting it into heavy, positively charged ions and lighter, negatively charged electrons. New theory may explain the ‘music of the meteors’ 2017-04-14T04:00:00Z They also point to a high concentration of negatively charged oxygen ions in the regional caves, which scientists say help purify the air. China’s Aged and Sick Flock to a Hamlet Known for Longevity 2017-04-12T04:00:00Z The electron is a negatively charged particle and as such responds to electrical and magnetic forces. Hans Dehmelt, physicist who won Nobel Prize for trapping single electrons, dies at 94 2017-04-10T04:00:00Z This substance is ferroelectric, meaning it is polarised so that one side of a crystal composed of it is positively charged, while the other is negatively charged. Searching for particles on a benchtop 2017-01-26T05:00:00Z Like what happens inside a chimney, the vertical winds within the dust devil carry the smaller, negatively charged grains up to high altitudes, while the positively charged grains remain at lower altitudes. Mars Storm Chaser About to Make History on Red Planet The opposite electrode holds negatively charged ions and is called the anode. The science behind exploding phone batteries 2016-09-08T04:00:00Z They are drawn toward the negatively charged electrode, called the anode, which is usually made of graphite. How to build a better battery through nanotechnology 2016-05-26T04:00:00Z Here E− is inferred for negatively charged ions or clusters that contain only C, H and O; the E− ion corresponds to a HOM of high gas-phase acidity. Ion-induced nucleation of pure biogenic particles : Nature : Nature Publishing Group 2016-05-24T04:00:00Z The solar wind’s negatively charged particles are discharged by means of an “electron gun,” so that the e-sail maintains a positive electric field. New NASA Spacecraft Will Be Propelled By Light 2016-02-03T05:00:00Z The hydrogen atom consists of a single negatively charged electron bound to a single positively charged proton. Famed number π found hidden in the hydrogen atom 2015-11-13T05:00:00Z When a device is connected to the battery, a chemical reaction occurs that generates positively charged ions and negatively charged electrons. From gadgets to the smart grid : Nature : Nature Publishing Group 2015-10-27T04:00:00Z Allow life’s negatively charged emotions to run free long enough and they all arrive at the same place—madness. The Joy of Madness 2015-09-16T04:00:00Z When the supercapacitor is discharging, electrons flow from the negatively charged electrode to the positive one, doing work along the way. New electric storage material could put more zip in your Tesla 2015-08-21T04:00:00Z The electrical current then busts apart the CO2 molecules through a process called electrolysis, and the carbon atoms swarm to the negatively charged electrode. A carbon capture strategy that pays 2015-08-19T04:00:00Z The authors used small peptides containing both a hydrophobic group that associates with the membrane and a cationic group that electrostatically interacts with the negatively charged phosphate groups of RNA. Origin of Life: First Cells May Have Been Glued Together 2015-08-13T04:00:00Z The eerie light inside the reaction chamber of Taylor’s fusor is created by the glow of negatively a negatively charged tungsten grid. Why This 14-Year-Old Kid Built A Nuclear Reactor 2015-07-26T04:00:00Z In their study, Vladan Vuletić, a physicist at the Massachusetts Institute of Technology in Cambridge, and his colleagues mimicked one surface with a row of negatively charged ytterbium ions held in an electric field. Friction of a single atom measured with light 2015-06-03T04:00:00Z The outer segments are positively charged, allowing the spheres to attach to negatively charged sites of both the plaque biofilms and tooth enamel. Plaque-busting nanoparticles could help fight tooth decay 2015-04-10T04:00:00Z An aluminum-ion battery generally consists of two electrodes, one negatively charged anode made of aluminum and a positively charged cathode. Stanford Researchers Created A Smartphone Battery That Charges In Only One Minute 2015-04-07T04:00:00Z But, if an atom gains electrons, it becomes “negatively charged.” Dance with Your Sweater 2015-02-19T05:00:00Z That "drive bunch" plows aside the negatively charged electrons in the plasma, but barely budges the heavier positively charged ions. Physicists crank up current in new type of accelerator 2014-11-07T05:00:00Z Charging the battery drives positively charged lithium ions in the electrolyte to the negatively charged anode, where they accumulate. Caging the Li-ion 2014-09-11T04:00:00Z Ionic liquids are salts — neutrally charged compounds of a positively charged and a negatively charged component — in liquid form. Liquid salts by-pass skin to treat infections 2014-08-24T04:00:00Z So more electrons hop from plane to sphere than vice versa, leaving the sphere negatively charged and the plane positively charged and creating the static. Static Electricity Defies Simple Explanation 2014-05-15T04:00:00Z The particles, negatively charged from friction, were avoiding contact with negatively charged foliage. Smog-Sucking Electrostatic Vacuum Cleaners May Scrub Beijing’s Air 2014-05-13T17:35:00Z Hydrophobic patches are shown in orange, positively and negatively charged surfaces are coloured in blue and red, respectively. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z When tall objects build up a positive charge underneath a negatively charged storm cloud, they form a cloud of positively charged ions, which helps to dissipate the electric field around them. Wind Turbines Generate "Upside-Down" Lightning [Video] 2014-03-03T21:54:39Z Ultraviolet light and X-rays on the day side of the Moon could strip negatively charged electrons off atoms in the dust during the day, imparting a positive charge to grains. Moon Mission to Suck Up Lunar Dust 2013-09-03T16:45:00.763Z When surfaces touch, the negatively charged electrons can jump from their high-energy perches on one surface to low-energy states on the other. Static Electricity Defies Simple Explanation 2014-05-15T04:00:00Z How did people figure out about that electrons were negatively charged particles, for example? Ideas for Improving Science Education in the U.S. 2013-09-02T18:54:54Z Hydrophobic patches are shown in orange, positively and negatively charged surfaces are coloured in blue and red, respectively. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z The sulfur, you see, becomes negatively charged during handling, while the red lead becomes positively charged. Fermilab Physicist Makes "Frozen Lightning" Art with Accelerators 2013-07-23T23:15:00.603Z The interaction of those two electrically neutral particles yields two oppositely charged particles, a positively charged proton and a negatively charged muon, which scatter outward like billiard balls struck by a cue ball. Particle Pals: Neutrino Experiment Shows Protons and Neutrons Pairing Up 2013-06-24T19:15:00.307Z So the negatively charged fluoride ions in the treated enamel may be literally repulsive to the bacteria. Fluoride Loosens Bacterial Enamel Grip 2013-05-23T00:45:00.707Z The charge against this negatively charged particle uses propaganda laced with a high concentration of fear-inducing terms and mischaracterizations to rally a small but highly vocal base. Why Portland Is Wrong About Water Fluoridation 2013-05-22T20:45:04.903Z Hydrophobic patches are shown in orange, positively and negatively charged surfaces are coloured in blue and red, respectively. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z So the sulfur sticks to those areas of the plate that are positively charged — opposites attract! — and the lead sticks to the negatively charged areas. Fermilab Physicist Makes "Frozen Lightning" Art with Accelerators 2013-07-23T23:15:00.603Z During the conversation, Ross advised Lewis to spray the deer antler extract under his tongue every two hours, pop deer antler pills and guzzle something called negatively charged water to stay hydrated. On Pro Football: Strange Is Normal for New Orleans – Jeré Longman 2013-02-04T15:42:44Z Take DNA's backbone, which contains repeating, negatively charged phosphate groups. Chemical biology: DNA's new alphabet 2012-11-21T18:21:07.117Z Radioactive cesium decays by emitting what's known as a beta radiation, a negatively charged particle that is easily blocked by metal, plastic or wood—but not skin. Radioactive Fish Near Fukushima Suggest Ongoing Contamination 2012-10-28T20:17:09.527Z Positively and negatively charged surfaces are coloured in blue and red, respectively. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z The new material is ferroelectric, which means that one side is negatively charged while the other is positively charged. New Computer Memory Material Goes Easy on the Juice 2012-08-24T22:55:26Z The Berkeley team used genetic engineering techniques to add four negatively charged molecules to one end of the corkscrew-shaped proteins that coat the virus. Viruses used to power tiny device 2012-05-15T14:33:36Z Hirao and his colleagues found that they could reduce mispairing by designing shapes that fit awkwardly with natural bases, and by adding negatively charged or electron-rich chemical groups that repel the natural bases' corresponding parts. Chemical biology: DNA's new alphabet 2012-11-21T18:21:07.117Z The proteins in the phage assemble with their positive ends leaning into the hollow core, which allows them to hold onto the negatively charged DNA that the phages inject into bacteria during an infection. Electronics Go Viral 2012-05-14T21:32:44Z Positively and negatively charged surfaces are coloured in blue and red, respectively. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z Electrons form a circuit by flowing from one electrode — a positively charged cathode — to another one — a negatively charged anode — through an electrolyte, which can be either liquid or solid. Researchers race to make a long-lasting battery for cellphones and other devices 2012-05-14T21:28:00Z To a negatively charged body, on the other hand, the earth under the same circumstances gives off positive electricity. Popular scientific lectures 2012-04-24T02:00:17.273Z The nucleus serves as a “sun” at the center, and is positively charged, while the electrons are “planets” and negatively charged, moving about the nucleus in circular orbits. Don't Be Dissin' the Bohr Model! 2012-02-10T13:15:00.243Z They added glutamates to the negatively charged end of the protein to increase its negative charge and thus its piezoelectric properties. Electronics Go Viral 2012-05-14T21:32:44Z Positively and negatively charged surfaces are coloured in blue and red, respectively. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z As the outer membrane of bacteria is usually negatively charged, this extra charge attraction helps with adhesion. Sticky bacteria and the benefits of staying still 2012-02-07T19:45:12.280Z With rising temperature the pole which becomes positively charged is called the “analogous pole,” and that negatively charged the “antilogous pole”: with falling temperature the charges are reversed. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Thomson initially called his mysterious little particles “corpuscles,” and suggested that they were the primary components of an atom: a collection of negatively charged “plums” immersed in a positively-charged “soup,” or “pudding.” Don't Be Dissin' the Bohr Model! 2012-02-10T13:15:00.243Z Induction takes place in the metallic system consisting of the discs l and o and the rod rs, l becoming negatively charged and o positively charged. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Most solar cells are made of a sandwich of two crystal layers: one that's slightly negatively charged and one that's slightly positive. Quantum Dots and More Used to Beat Efficiency Limit of Solar Cells 2011-12-23T21:15:00.257Z Working with frog embryos at the four-cell stage, Levin and his colleagues then used several methods to disrupt the normal voltages of the cells, making them more or less negatively charged. My, Your Eyes Are So Electric 2011-12-07T19:38:32Z When there are more than the normal number of electrons in anything, it is said to be negatively charged; when there is a shortage of electrons, it is positively charged. Electricity for the 4-H Scientist Idaho Agricultural Extension Service Bulletin 396, June, 1962 2011-11-18T03:00:30.487Z When they absorb light, the junction separates the negatively charged electrons and the positively charged holes, producing an electrical current, explains Prof. Rabani. Conducting Energy on a Nano Scale 2011-07-19T14:45:00Z How the earth has become a negatively charged body. Autobiography of an Electron Wherein the Scientific Ideas of the Present Time Are Explained in an Interesting and Novel Fashion 2011-06-19T02:00:25.633Z When that happens, the positively charged positron and the negatively charged antiproton cancel each other's charges. Antiatoms, All Out of Energy and Ready for Work 2011-06-05T18:00:00Z Moreover, because both arsenate and DNA are negatively charged molecules, there should be little As sorbed to the DNA pellet after the purification process. [Technical Response] Response to Comments on ?A Bacterium That Can Grow Using Arsenic Instead of Phosphorus? 2011-06-02T18:25:46.820Z At both ends they attached negatively charged sticky end groups. Plastic Heal Thyself 2011-04-20T18:27:14Z Many other ways of obtaining these negatively charged particles, or electrons, are now known. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z Electrons must be stripped from hydrogen atoms in water, which causes water molecules to fracture into positively charged hydrogen ions, or protons, and negatively charged oxygen atoms. Spinning the Sun's Rays Into Fuel 2011-03-28T20:30:02Z One site of damage is the anode, a battery’s negatively charged terminal. New Batteries Fix Themselves 2011-02-22T16:16:00Z One side is attracted to negatively charged molecules on the surface of bacterial membranes. The Genius Chemist And His Assault On Mutant Killer Bacteria 2011-01-28T17:30:41Z A normal hydrogen atom contains a single negatively charged electron orbiting a nucleus made of a single positively charged proton. Artificial Hydrogen Tests Quantum Theory 2011-01-28T01:45:01.977Z When stimulated by light, those proteins open up and let negatively charged ions into the cell. Blind Mice See Again 2010-06-25T15:43:00Z This compound consists of positively charged potassium ions and negatively charged trifluoromethylsulfonates. Lighting: Printed circuit 2010-02-18T10:42:00Z The fundamental assumption is that the medium contains positively and negatively charged ions or electrons which are acted on by the periodic electric forces which occur in wave propagation on Maxwell’s theory. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" The ions carrying a positive charge are attracted to plate B, while those negatively charged are attracted to plate A, thus causing a current. A Brief Account of Radio-activity Positively charged atoms of element 102 are knocked off the foil by the beam, which is of carbon-12 or carbon-13 nuclei, and are deposited on a negatively charged conveyor apron. A Brief History of Element Discovery, Synthesis, and Analysis The result is that the grid has now too many electrons, that is, it is negatively charged. Letters of a Radio-Engineer to His Son According to this hypothesis the atom may be considered as a mass of positively and negatively charged particles, all in rapid motion, their mutual forces holding them in equilibrium. A History of Science, Volume 5(of 5) Aspects Of Recent Science If there are more than the usual number of electrons on an object, however, we say that it is negatively charged, or that it has a negative charge of electricity on it. Common Science In the electric field those negatively charged seek the positive plate and those positively charged seek the negative plate. A Brief Account of Radio-activity The atoms just turned themselves inside out, so to speak, giving us an atom with positrons circling a negatively charged nucleus. Islands of Space I used the repulsion of the Earth upon our negatively charged stern gravity-plates; and with those of the bow electronified to the positive reaction, we were drawn forward by the Sun and the Moon. Wandl the Invader Lodge considered the simple case of a negatively charged electron revolving round an atom of mass relatively large but having an equal positive charge and held in equilibrium by electrical forces. A History of Science, Volume 5(of 5) Aspects Of Recent Science The parts with unusually large numbers of electrons gather around the zinc; so the zinc is negatively charged,—it has more than the ordinary number of electrons. Common Science Beta Rays The beta rays are negatively charged and have a greater penetrating power than the alpha rays. A Brief Account of Radio-activity With them, you produce negamatter—atoms with negatively charged protons and positive electrons, positrons. The Cosmic Computer Strictly in harmony with Lorentz's theory, this splitting and polarization proved the presence in the luminous vapor of exactly such negatively charged electrons as had been indicated there previously by very different experimental methods. The New Heavens Once within the influence of its currents, human beings become positively or negatively charged, violently attracting or repelling each other. In Search of the Unknown When a body has more than its natural amount of electricity, it is said to be charged positively; when it has less than its natural amount it is negatively charged. A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery. With a Short Explanation of Some of the Principal Natural Phenomena. For the Use of Schools and Families. Enlarged and Revised Edition. Hence the zinc, or consumed plate, becomes negatively charged. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The beta rays are on all points similar to the cathode rays; they are, as M. and Madame Curie have shown, negatively charged, and the charge they carry is always the same. The New Physics and Its Evolution The alpha particle, carrying a positive electrical charge, pulls electrons from the atoms through which it passes, while negatively charged beta particles can push electrons out of neutral atoms. Worldwide Effects of Nuclear War: Some Perspectives When your body’s cells absorb all of the floating matter, they will be either positively or negatively charged to such an extent that their revolutions will be rapidly accelerated. The Revolutions of Time On the other hand if the grid is charged positively, see B, then more electrons will strike the plate than when the grid is not used or when it is negatively charged. The Radio Amateur's Hand Book This assumes a large variety of forms, but always employs zinc as the negatively charged element, carbon as the positively charged element, Page 100 and a solution of sal ammoniac as the electrolyte. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The Beta rays consist of negatively charged particles or corpuscles approximately one thousandth the size of those constituting the Alpha rays. Marvels of Modern Science Cathode rays then were accepted as flights of negatively charged particles, moving with high velocities. Darwin and Modern Science This separation of the molecules of a chemical compound into positively and negatively charged ions is called dissociation. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The outer casing is of zinc, formed in the shape of a cylindrical cup, and serves not only as the retaining vessel, but as the negatively charged electrode. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In all of these the negatively charged element is of zinc, the positively charged element a mass of copper oxide, and the electrolyte a solution of caustic potash in water. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. |
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