| 单词 | Becquerel |
| 例句 | Rutherford, meanwhile, had busied himself examining “uranium radiation,” his term for the emanations discovered by Becquerel. Big Science 2015-07-07T00:00:00Z It began in 1896 when Henri Becquerel in Paris carelessly left a packet of uranium salts on a wrapped photographic plate in a drawer. A Short History of Nearly Everything 2003-05-06T00:00:00Z In the year of his arrival in Cambridge, Wilhelm Roentgen discovered X rays at the University of Würzburg in Germany, and the next year Henri Becquerel discovered radioactivity. A Short History of Nearly Everything 2003-05-06T00:00:00Z In 1903 the Curies and Becquerel were jointly awarded the Nobel Prize in physics. A Short History of Nearly Everything 2003-05-06T00:00:00Z Considering the importance of what he had found, Becquerel did a very strange thing: he turned the matter over to a graduate student for investigation. A Short History of Nearly Everything 2003-05-06T00:00:00Z The lower floors are blanketed with them— Becquerel, Lavoisier, Fischer—a lifetime of reading. All the Light We Cannot See 2014-05-06T00:00:00Z Roentgen’s report prompted the Parisian physicist Henri Becquerel to look for other signs of X-rays. Big Science 2015-07-07T00:00:00Z Wilhelm Roentgen accidentally discovered X-rays that year, and Henri Becquerel discovered radioactivity in uranium salts. Review: Japanese Photographers Reflect on the Fukushima Catastrophe 2015-06-19T04:00:00Z It began with the discovery of radioactivity in 1896 by the French physicist Henri Becquerel. Will "godlike AI" kill us all — or unlock the secrets of the universe? Probably not 2023-08-12T04:00:00Z She wanted to explore radioactivity, which had just been discovered by Henri Becquerel, in 1896. Celebrate the women behind the periodic table 2019-01-27T05:00:00Z In 1903, she was awarded the Nobel Prize for Physics alongside Pierre and Henri Becquerel. Seven trailblazing women in science 2017-11-05T04:00:00Z The achievements of a list of notables — from Wilhelm Rontgen to Henri Becquerel to Pierre and Marie Curie, for example — are condensed to a few pages. Opinion | How a chain of scientific discovery leads to a history of the universe 2017-03-09T05:00:00Z After Henri Becquerel discovered the radioactivity of uranium in 1896, Marie and Pierre Curie discovered even more radioactive elements polonium and radium. The World's Oldest Man Was Born 113 Years Ago. Here's What Else Happened Then 2016-09-15T04:00:00Z That's what Becquerel found: The metal called uranium will give off a slight glow even if it's kept in a dark room with no external source of energy. Will "godlike AI" kill us all — or unlock the secrets of the universe? Probably not 2023-08-12T04:00:00Z Becquerels are a globally recognized unit of measurement for radioactivity. AP Exclusive: Test finds Chernobyl residue in Belarus milk 2016-04-25T04:00:00Z In 1896, Henri Becquerel found that rays emanating from uranium salts penetrated paper and caused fogging of an unexposed photographic plate. The element that causes arguments 2014-10-18T04:00:00Z However, the models differ in their predictions of the peak concentration of cesium — from a low of 2 to a maximum of 27 Becquerels per cubic meter. Radioactive Isotopes from Fukushima Meltdown Detected near Vancouver 2014-02-25T21:13:00Z Becquerel per hour measures the amount of radiation emitted or the rate of radioactive decay. Insight: Japan's "Long War" to shut down Fukushima 2013-03-05T22:06:11Z Becquerel's observation didn't get much attention at first. Will "godlike AI" kill us all — or unlock the secrets of the universe? Probably not 2023-08-12T04:00:00Z Becquerel noted that carbon phosphoresces at a certain elevated temperature preceding the dark red. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z Becquerel found it in 8 out of 38 cases, Andral in only 4 out of 34 cases. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z For comparison, uncontaminated seawater contains only a few Becquerels per cubic meter of cesium. Radioactive Isotopes from Fukushima Meltdown Detected near Vancouver 2014-02-25T21:13:00Z Other experimenters played variations on Mr. Ponton’s bichromate scale, and amongst the performers were M. E. Becquerel, of France, and our own distinguished countryman, Mr. Robert Hunt. The Evolution of Photography With a Chronological Record of Discoveries, Inventions, etc., Contributions to Photographic Literature, and Personal Reminescences Extending over Forty Years 2012-02-15T03:00:30.577Z In 1903 they were awarded the Davy medal of the Royal Society in recognition of this work, and in the same year the Nobel prize for physics was divided between them and Henri Becquerel. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z "In the valley of the Rhone," says Becquerel, "a simple hedge, two mètres in height, is a sufficient protection for a distance of twenty-two mètres." Man and Nature or, Physical Geography as Modified by Human Action 2011-11-11T03:00:34.027Z Curie and half to Henri Becquerel, whose discovery of the spontaneous radio-activity of uranium ore formed the basis of all subsequent researches in radio-activity. Marie Sklodowska Curie 2011-10-28T13:45:02.217Z Both peaks are well below the highest level recorded in the Baltic Sea after Chernobyl, which was 1,000 Becquerels per cubic meter. Radioactive Isotopes from Fukushima Meltdown Detected near Vancouver 2014-02-25T21:13:00Z Rice from more than 400 locations in Fukushima prefecture has been tested, and the highest level of radioactive cesium previously detected was less than 150 Becquerels per kilogram. Japan Testing Rice Crop Because of Radiation 2011-09-24T12:54:54Z Then Becquerel was next visited, but he was nearly blind and could see nothing in the new optical toy. Inventions in the Century 2011-07-20T02:00:14.643Z Becquerel wrapped photographic plates in black paper, placed a sample of phosphorescent uranium potassium sulfate on top of it, and placed it in the Sun. Paris: City of Light and Cosmic Rays 2011-07-04T14:15:00.943Z Radiation in food and other substances is measured in Becquerel. Radiation found in seaweed near crippled Japan plant 2011-05-13T15:18:20Z The level was far below the standard set by Japan’s health ministry of 500 Becquerels per kilogram for fish. Japan Sushi Purchases Canceled 2011-03-30T04:09:01Z Under recently adapted Japanese regulations, rice with up to 500 Becquerels of radioactive cesium per kilogram is considered safe for consumption. Japan Testing Rice Crop Because of Radiation 2011-09-24T12:54:54Z For grains including rice, the level is set at 500 Becquerels per kilogram of cesium and 100 Becquerels per kilogram of uranium. Fukushima May Abandon Rice Planting Amid Radiation in Soil 2011-03-28T07:49:01Z For fish, the level is set at 500 Becquerels per kilogram of radioactive cesium and 100 Becquerels per kilogram of uranium. Japanese Swap Fish for Burgers on Radiation Contamination Fears 2011-03-24T18:44:31Z Now, there's a paranoid strain of thought, particularly among some conservative Japanese media, that the outside world is obsessing about each radioactive Becquerel as some sneaky way to hurt Japan's image. Radioactive Water: How Japan Watches What It Drinks 2011-03-24T18:10:00Z The limit for food in Hong Kong is 100 Becquerels per kilogram, it said. Hong Kong Bars Some Japanese Produce After Finding Radiation 2011-03-24T06:27:01Z A Becquerel is a frequently used measure of radiation. Japan Testing Rice Crop Because of Radiation 2011-09-24T12:54:54Z "Becquerels are like atoms," said Pradip Deb, senior lecturer in Medical Radiations at the School of Medical Sciences, Royal Melbourne Institute of Technology University. Experts pore over contaminants after Japan accident 2011-03-22T16:31:40Z When Henri Becquerel, the great physicist, kept a tube containing a salt of radium in his waistcoat-pocket, his skin became covered in a few days with suppurating ulcers. The Secret of Sarek 2011-01-14T03:00:49.903Z Shortly after this they shared with M. H. Becquerel in the Nobel prize for physics bestowed on them by Sweden. Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind 2011-01-12T03:00:29.853Z Alexandre Edmond Becquerel, then 19, placed two metal plates in a salt solution and generated an electric current by simply placing his rig in the sun. Solar energy offers a vast supply of power, but harnessing it is a challenge 2010-06-22T04:00:00Z Hearing about Röntgen's work encouraged Frechman Henri Becquerel to investigate some unusual rocks he had in his collection, which glowed in the dark. Surprising science 2010-04-27T09:55:00Z Pierre, with whom she discovered radioactivity, refused to accept the 1903 Nobel Prize in Physics that was offered to him and Henri Becquerel unless his wife shared it. Special Report: The Female Factor: Risk and Opportunity for Women in 21st-Century Challenges 2010-03-05T20:36:00Z A. E. Becquerel, however, investigated the character of the dispersion by using prism-shaped flames strongly coloured with sodium. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" Having before been the beneficiary of the Nobel prize for physics, in conjunction with her husband and M. H. Becquerel, Mme. Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind 2011-01-12T03:00:29.853Z And what seemed the more wonderful was the fact that these "Becquerel rays," as they were now called, emanated spontaneously from the pitch-blende. A History of Science, Volume 5(of 5) Aspects Of Recent Science Following the discoveries of the great French scientist, Becquerel, man had learned that the potential energy of all atoms—especially that of radium—is almost limitless. Omega, the Man Then they purchased Becquerel's treatise, in which they saw that pork is in itself "a good aliment," tobacco "perfectly harmless in its character," and coffee "indispensable to military men." Bouvard and Pécuchet A Tragi-comic Novel of Bourgeois Life Professor Becquerel was the first one to suggest that it might possess therapeutic or healing powers. The Eugenic Marriage, Volume IV. (of IV.) A Personal Guide to the New Science of Better Living and Better Babies Curie had her interest aroused by the brilliant discoveries of Röntgen and Becquerel regarding radiant matter. Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind 2011-01-12T03:00:29.853Z In 1896 the French scientist Becquerel observed that the mineral pitchblende possesses certain remarkable properties. An Elementary Study of Chemistry A neighboring street, Rue Becquerel, is named after another French savant, and parallel to it is a short street named Rue Darwin. Lamarck, the Founder of Evolution His Life and Work "Truth on this side of the Pyrenees, error on the other side," M. Levy asserts; and Becquerel adds that it is not a science. Bouvard and Pécuchet A Tragi-comic Novel of Bourgeois Life In 1896 Becquerel brought us to the threshold of the great discovery. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told Mr. Becquerel does more than doubt—he denies: "As regards the disengagement of electricity in the changing of the state of bodies, we find none." Scientific American Supplement, No. 613, October 1, 1887 This is the case with gases themselves, as demonstrated, for example, by a very elegant experiment of M. Becquerel on the dispersion of the vapour of sodium. The New Physics and Its Evolution Secondary actions have already, in the hands of M. Becquerel, produced many interesting results in the formation of compounds; some of them new, others imitations of those occurring naturally179. Experimental Researches in Electricity, Volume 1 Shortly after Becquerel's discovery, experiments proved that salts of the rare metal thorium are radio-active. The Story of Alchemy and the Beginnings of Chemistry Certain substances are phosphorescent—they become luminous after they have been exposed to sunlight for some time, and Becquerel was trying to find if any of these substances give rise to X-rays. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told These results, as well as the spectra obtained, he stated further, corroborated Becquerel's observations. Scientific American Supplement, No. 613, October 1, 1887 Becquerel and Deslandres, M. Broca, Professor Michelson, and others—have pointed out some remarkable peculiarities. The New Physics and Its Evolution A very valuable experiment has been made by M. Becquerel with particles of clay321, which will probably bear importantly on this point. Experimental Researches in Electricity, Volume 1 While experimenting with electricity he read the works of Becquerel, Mesmer, and others who treated largely of the virtues of electricity in the cure of disease. Scientific American Supplement, No. 520, December 19, 1885 The phenomena of radioactivity were discovered accidentally in 1896 by the French chemist Becquerel. Q. E. D., or New Light on the Doctrine of Creation I was fortunate in securing at Melbourne everything I needed except a set of Becquerel ray condensers—but these were the very keystone of my equipment. The Moon Pool Some ingenious researches by M. Becquerel and M. Cotton have perfectly elucidated all these complications from an experimental point of view. The New Physics and Its Evolution Becquerel, in his Trait� de l'Electricit�, has brought together the considerations which arise for and against the opinion, that the effect generally is an electric effect320. Experimental Researches in Electricity, Volume 1 Having read an account of the experiments of M. E. Becquerel, a French savant, on photographing in the colours of nature, my curiosity was awakened. Men of Invention and Industry This is probably due to the fact, established by the experiments of A. C. Becquerel, that plants possess no proper temperature, but are wholly dependent on that of the surrounding medium. The Project Gutenberg Encyclopedia Volume 1 of 28 First of all I took out the two Becquerel ray-condensers that I had bought in Sydney. The Moon Pool That of M. Jean Becquerel, which would attribute it to the vibration within the atom of both negative and positive electrons, also deserves notice. The New Physics and Its Evolution In 1845, M. Edward Becquerel announced that he had "been successful in obtaining, by the agency of solar radiations, distinct impressions, of the colors of nature." American Hand Book of the Daguerreotype Smith, after deep reflection, resolved to make a very simple battery, something like that which Becquerel invented in 1820, in which zinc alone is used. The Mysterious Island Becquerel, the Curies, Rutherford--they were playing with the letters of the Greek alphabet, Alphas, Gammas, and Rhos, while the simple, gentle old boy that I served had read the secret. The Mystery The Becquerels were set within three-inch tripods, whose feet I had equipped with vacuum rings to enable them to hold fast to the rock. The Moon Pool The researches on radioactive substances have their starting-point in the discovery of the rays of uranium made by M. Becquerel in 1896. The New Physics and Its Evolution Becquerel had no idea of such radiations, had never thought of their possibility. Marvels of Modern Science "In the valley of the Rhone," says Becquerel, "a simple hedge, two metres in height, is a sufficient protection for a distance of twenty-two metres." The Earth as Modified by Human Action Becquerel was the first, I believe, to use this property. The Dream Doctor Becquerel, the French chemist, found that two plates of silver freshly coated with silver from a solution of chloride of silver and plunged into water, form a voltaic cell which is sensitive to light. The Story of Electricity This work was effected by Professor Giesel, then by M. Becquerel, Professor Rutherford, and by many other experimenters after them. The New Physics and Its Evolution A slight trace of photographic action was found at those parts of the plate directly beneath the uranium just as Becquerel had expected. Marvels of Modern Science Becquerel notices a special function of the forest to which I have already alluded, but to which sufficient importance has not, until very recently, been generally ascribed. The Earth as Modified by Human Action The possibility of defining it is suggested by the discovery within the past few years, that under certain conditions, heated matter sends forth entities known as Rontgen rays, Becquerel corpuscles and electrons. Side-Lights on Astronomy and Kindred Fields of Popular Science In 1896 H. Becquerel discovered that compounds of the metal uranium continually emitted rays capable of penetrating opaque screens and affecting photographic plates. Darwin and Modern Science Becquerel has shown by the aid of photography that they are deviated by a magnet, and Professor Rutherford has, on his side, studied this deviation by the electrical method. The New Physics and Its Evolution Becquerel was about to throw them away, but on second consideration thinking that some action might have possibly taken place in the dark, he resolved to try them. Marvels of Modern Science The results of recent experiments by Becquerel do not accord with those obtained by Meguscher, and the former eminent physicist holds that "a tree is warmed in the air like any inert body." The Earth as Modified by Human Action It was developed and maintained by those 'admirable electricians,' Becquerel, of Paris, and De la Rive, of Geneva. Faraday as a Discoverer Professor Becquerel has stated that if a square centimeter of surface was covered by chemically pure radium it would lose but one thousandth of a milligram in weight in a million years' time. Marvels of Modern Science Becquerel, De la Rive, and others had shown, there are also secondary actions which may materially interfere with and complicate the pure action of the current. Faraday as a Discoverer Becquerel began to experiment with a view to testing this supposition. Marvels of Modern Science |
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