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	Becquerel - LoveToKnow 1911
		Antoine Cesar Becquerel (1788-1878), was born at Chatillon sur Loing on the 8th of March 1788.
		Edmond Becquerel was associated with his father in much of his work, but he himself paid special attention to the study of light, investigating the photochemical effects and spectroscopic characters of solar radiation and the electric light, and the phenomena of phosphorescence, particularly as displayed by the sulphides and by compounds of uranium.
		It was in connexion with these latter inquiries that he devised his phosphoroscope, an apparatus which enabled the interval between exposure to the source of light and observation of the resulting effects to be varied at will and accurately measured.
	www.1911encyclopedia.org /Becquerel (445 words)

	Henri Becquerel - Biography
		His father, Alexander Edmond Becquerel, was a Professor of Applied Physics and had done research on solar radiation and on phosphorescence, while his grandfather, Antoine César, had been a Fellow of the Royal Society and the inventor of an electrolytic method for extracting metals from their ores.
		Becquerel's earliest work was concerned with the plane polarization of light, with the phenomenon of phosphorescence and with the absorption of light by crystals (his doctorate thesis).
		Later, Becquerel showed that the rays emitted by uranium, which for a long time were named after their discoverer, caused gases to ionize and that they differed from X-rays in that they could be deflected by electric or magnetic fields.
	www.nobelprize.org /nobel_prizes/physics/laureates/1903/becquerel-bio.html (564 words)

	Röntgen & Becquerel
		Becquerel, a French physicist, was the son and grandson of physicists.
		Becquerel was also familiar with the work of Roentgen who on December 22 1895, "photographed" his wife's hand, revealing the unmistakable image of her skeleton, complete with wedding ring.
		Becquerel concluded "that the phosphorescent substance in question emits radiation which penetrates paper opaque to light." Initially he believed that it was the sun's energy that was being absorbed by the uranium, which, in turn then emitted X-rays.
	members.tripod.com /symatxmisc/Physics/6roentegen.htm (564 words)

	Henri Becquerel - Wikipedia, the free encyclopedia
		Antoine Henri Becquerel (December 15, 1852 – August 25, 1908) was a French physicist, Nobel laureate, and one of the discoverers of radioactivity.
		Becquerel was born in Paris into a scientific family which, including him and his son, produced four generations of scientists.
		The SI unit for radioactivity, the becquerel (Bq) is named after him, and also there are Becquerel craters on the Moon and Mars.
	en.wikipedia.org /wiki/Henri_Becquerel (353 words)

	Becquerel - Wikipedia, the free encyclopedia
		The becquerel (symbol Bq) is the SI derived unit of radioactivity, defined as the activity of a quantity of radioactive material in which one nucleus decays per second.
		As measured in becquerel units, a more active (and, assuming all other factors to be the same, more dangerous) source has a higher number; this is more intuitively obvious than 1/s, which could lead to confusion.
		The becquerel is named for Henri Becquerel, who shared a Nobel Prize with Marie Curie for their work in discovering radioactivity.
	en.wikipedia.org /wiki/Becquerel (304 words)

	Biographie: Antoine Becquerel, 1852-1908
		Becquerel arbeitet als Dozent an der École Polytechnique und ist als Chefingenieur für Brücken- und Straßenbau in der Ministerialabteilung tätig.
		In sieben Veröffentlichungen beschreibt Becquerel den Effekt der von ihm nachgewiesenen Strahlung.
		Becquerel gelingt der photographische Nachweis der magnetischen Ablenkbarkeit der Betastrahlen, eines Teils der radioaktiven Strahlung.
	www.dhm.de /lemo/html/biografien/BecquerelAntoine/index.html (271 words)

	Antoine Henri Becquerel Winner of the 1903 Nobel Prize in Physics
		Antoine Henri Becquerel Winner of the 1903 Nobel Prize in Physics
		Henri Becquerel — Nobel Lecture (submitted by Chinnappan Baskar)
		Henri Becquerel was born into a family of scientists (submitted by Hendry Izaac Elim)
	www.almaz.com /nobel/physics/1903a.html (132 words)

	Antoine-Henri Becquerel (1852 - 1908)
		Becquerel learned that the X rays issued from the area of a glass vacuum tube made fluorescent when struck by a beam of cathode rays.
		Becquerel reported this discovery to the Academie des Sciences at its session on February 24, 1896, noting that certain salts of uranium were particularly active.
		This was an index of both his and the scientific world's interest in the subject, for the period saw studies of numerous radiations (e.g., cathode rays, X rays, Becquerel rays, "discharge rays," canal rays, radio waves, the visible spectrum, rays from glowworms, fireflies, and other luminescent materials), and Becquerel rays seemed not especially significant.
	www.rtstudents.com /radiology/antoine-henri-becquerel.htm (1018 words)

	Henri Becquerel (Site not responding. Last check: )
		The material Becquerel chose to work with was a double sulfate of uranium and potassium, which he exposed to sunlight and placed on photographic plates wrapped in fl paper.
		Becquerel concluded "that the phosphorescent substance in question emits radiation which penetrates paper opaque to light." Initially he believed that the sun's energy was being absorbed by the uranium which then emitted X rays.
		Later, Becquerel demonstrated that the radiation emitted by uranium shared certain characteristics with X rays but, unlike X rays, could be deflected by a magnetic field and therefore must consist of charged particles.
	www.csvts.cz /cns/kdojekdo/becquer.htm (291 words)

	Curies (Site not responding. Last check: )
		Becquerel not only inherited their interest in science, he also inherited the minerals and compounds studied by his father.
		The material Becquerel chose was a double sulfate of uranium and potassium which he exposed to sunlight and placed on photographic plates wrapped in fl paper.
		Later, Becquerel demonstrated that the radiation emitted by uranium shared certain characteristics with x-rays but, unlike the latter, could be deflected by a magnetic field and therefore must consist of charged particles.
	www.physics.isu.edu /radinf/cuire.htm (737 words)

	Becquerel (Site not responding. Last check: )
		Antoine César Becquerel may literally be called a “grandfather” of electrochemistry, as he was the first of four generations of French scientists who each made significant contributions spanning two centuries.
		Becquerel's work in electrochemistry brought him, in 1837, the award of the Copley medal of the Royal society of London.
		In fact, four generations of Becquerels were educated at the École Polytechnique and became professors of physics at the French Museum of Natural History (1878).
	www.geocities.com /bioelectrochemistry/becquerel.htm (1144 words)

	Becquerel, Antoine Henri (Site not responding. Last check: )
		His father, Alexander Edmond Becquerel, was a Professor of Applied Physics and had done research on solar radiation and on phosphorescence, while his grandfather, Antoine César, had been a Fellow of the Royal Society and the inventor of an electrolytic method for extracting metals from their ores.
		Becquerel's earliest work was concerned with the plane polarization of light, with the phenomenon of phosphorescence and with the absorption of light by crystals (his doctorate thesis).
		Later, Becquerel showed that the rays emitted by uranium, which for a long time were named after their discoverer, caused gases to ionize and that they differed from X-rays in that they could be deflected by electric or magnetic fields.
	www.cartage.org.lb /en/themes/Biographies/MainBiographies/B/Becquerel/Becquerel.htm (501 words)

	The ORCBS - Radiation Safety - Resources & Links - Historical Figures
		The material Becquerel chose to work with was a double sulfate of uranium and potassium which he exposed to sunlight and placed on photographic plates wrapped in fl paper.
		Becquerel concluded "that the phosphorescent substance in question emits radiation which penetrates paper opaque to light." Initially he believed that the sun's energy was being absorbed by the uranium which then emitted X rays.
		Later, Becquerel demonstrated that the radiation emitted by uranium shared certain characteristics with X rays but, unlike X rays, could be deflected by a magnetic field and therefore must consist of charged particles.
	www.orcbs.msu.edu /radiation/resources_links/historical_figures/becquerel.htm (361 words)

	becquerel
		Becquerel not only inherited their interest in science, he also inherited the minerals and compounds studied by his father.And so, upon learning how Wilhelm Roentgen discovered X rays from the fluorescence they produced, Becquerel had a ready source of fluorescent materials with which to pursue his own investigations of these mysterious rays.
		Becquerel's father, Edmond, had shown that some uranium compounds were phosporesecent, for example, the uranic series, whereas the uranous series was not.
		Becquerel produced more papers on uranium's penetrating rays, but there was really nothing much else that happened until Marie Curie decided to pursue Becquerel's rays as a thesis topic.
	www.calstatela.edu /faculty/kaniol/f2000_lect_nuclphys/lect1/becquerel.htm (1496 words)

	CERN Courier - A hundred years ago... - IOP Publishing - article
		Becquerel himself turned to the investigation of another new discovery, the Zeeman effect.
		Working with her husband, Pierre, she showed that the ability of uranium compounds to emit the rays was a property of uranium itself, and went on to coin the name "radioactive".
		By covering his sources with layers of foil, Rutherford showed that Becquerel rays were inhomogeneous, with at least two distinct components, one of which was absorbed by just a few foils, which he called alpha-radiation, the other beta-radiation being more penetrating.
	www.cerncourier.com /main/article/38/7/18 (489 words)

	The Discovery of Radioactive Elements (Site not responding. Last check: )
		Subsequent to Roentgen's discovery of x-rays, in 1896 a French scientist Henri Becquerel was experimenting with a uranium compound.
		Becquerel concluded that the uranium compound gave off something invisible that could penetrate heavy paper and affect photographic film.
		Becquerel continued to test many samples of compounds and determined that the source of the invisible something was the element uranium.
	www.ndt-ed.org /educationresources/highschool/radiography/discoveryelements.htm (370 words)

	Becquerel. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Antoine César Becquerel, 1788–1878, was a pioneer in electrochemical science.
		Becquerel made a special study of the voltaic cell, telegraphy, and magnetism and wrote several books on these subjects.
		In 1896 he discovered radioactivity in uranium; the Curies made further investigations of the phenomenon and shared with Becquerel the 1903 Nobel Prize in Physics (see Curie, family).
	www.bartleby.com /65/be/Becquere.html (199 words)

	Meeting the Sleeping Genie - The World and I Magazine
		Becquerel pursued his research on the matter and soon found that these invisible radiations given out by the uranium salts could discharge an electroscope (a device for detecting small charges of electricity).
		Inspired by Becquerel's discovery, Marie Sklodowska Curie, a brilliant physicist in Paris, undertook a thorough investigation of the material that emitted this new radiation.
		Henri Becquerel's discovery of that small smudge on a photographic plate was a discovery of no small significance, leading as it did to a drastic reformulation of our understanding of the ultimate core of the material world.
	www.worldandi.com /public/1996/june/ar2.cfm (3107 words)

	Henri Becquerel (Site not responding. Last check: )
		Henri Antoine Becquerel did one such act at the end of last century by forgetting some photographic plates in his drawer for a few days.
		Yet, it is this climate that turned out to be a blessing in diguise for Becquerel, who was born on 15 December 1852 in Croisic and was well known in his town Grande Brière.
		The use of nuclear power for energy, civil and military applications would not have been possible witmeut the discovery of articficial radioactivity by Irène and Frédéric Joliot-Curie, which was an extension of natural radioactivity, and that of fission reactions by Otto Hahn and Fritz Strassmann in 1939.
	ambafrance-ca.org /HYPERLAB/PEOPLE/_becquer.html (817 words)

	Henri Becquerel (Site not responding. Last check: )
		Antoine Henri Becquerel (December 15, 1852 – August 25, 1908) was a French (French: The Romance language spoken in France and in countries colonized by France) physicist (physicist: A scientist trained in physics), Nobel laureate, and one of the discoverers of radioactivity.
		Becquerel was born in Paris (Paris: The capital and largest city of France; and international center of culture and commerce) into a scientific family which, including him and his son, produced four generations of scientists.
		The SI unit (SI unit: more facts about this subject) for radioactivity, the becquerel (becquerel: French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)) (Bq) is named after him, and also there are Becquerel craters (Becquerel craters: the name becquerel (crater) is shared by the following formations:...
	www.absoluteastronomy.com /reference/henri_becquerel (416 words)

	Becquerel (Site not responding. Last check: )
		Antoine César Becquerel (1788-1878) may literally be called a “grandfather” of electrochemistry, as he was the first of four generations of French scientists who each made significant contributions spanning two centuries.
		The four Becquerels succeeded one another as Professor of Physics at the Museum of Natural History (Paris) and often worked as father-son teams, advancing the knowledge in electrochemistry, physics, biology, electricity, and agriculture.
		Antoine Becquerel's first electrochemical research described his observation of unexpected current when two pieces of platinum were dipped, in succession, into an acid.
	www.bioanalytical.com /info/calendar/97/becq.htm (237 words)

	The Scientific History of the Atomic Bomb (Site not responding. Last check: )
		Becquerel immediately sees a connection between X-rays and fluorescence, which he had been studying.
		At the end of February, Becquerel attempted to repeat this experiment, but it was cloudy in Paris so he placed his experimental setup in a drawer until March 1.
		Becquerel realized that the fogging of the plate had nothing to do with the fluorescent properties of the salt or X-rays.
	www.hcc.mnscu.edu /programs/dept/chem/abomb/page_id_7212.html (237 words)

	Henri Becquerel - Biography
		His father, Alexander Edmond Becquerel, was a Professor of Applied Physics and had done research on solar radiation and on phosphorescence, while his grandfather, Antoine César, had been a Fellow of the Royal Society and the inventor of an electrolytic method for extracting metals from their ores.
		Becquerel's earliest work was concerned with the plane polarization of light, with the phenomenon of phosphorescence and with the absorption of light by crystals (his doctorate thesis).
		Later, Becquerel showed that the rays emitted by uranium, which for a long time were named after their discoverer, caused gases to ionize and that they differed from X-rays in that they could be deflected by electric or magnetic fields.
	nobelprize.org /nobel_prizes/physics/laureates/1903/becquerel-bio.html (551 words)

	GCSE Nuclear Radiation: Famous people
		Becquerel was born in Paris, and studied at the Ecole Polytechnique.
		She received her doctorate of science in 1903, and Becquerel and the Curies shared the Nobel Prize for Physics that same year.
		In 1904 he was appointed professor at the Sorbonne, and was elected to the Academy of Sciences in 1905, having jointly received the Nobel Prize for Physics with Marie Curie and Henri Becquerel in 1903.
	www.darvill.clara.net /nucrad/people.htm (1851 words)

	The Morning News - Changed Equations That Changed the World, by Michael Rottman
		Becquerel, the randy old devil, and Rutherford, the brash, young Kiwi fop, could be found in the beer hall as often as in the laboratory, singing songs and nuzzling bosoms.
		Whether Becquerel became jealous over Rutherford’s rising star and his breakthroughs with nuclei, or whether Rutherford failed to show proper respect to the discoverer of radioactivity, somehow the friendship soured.
		A becquerel (Bq) is a unit of radiation produced by one atomic disintegration per second.
	www.themorningnews.org /archives/spoofs_satire/changed_equations_that_changed_the_world.php (1515 words)

	Becquerel (Site not responding. Last check: )
		He was born in Paris, and became professor of physics at the Museum of Natural History in 1892 and at Polytechnical School in 1895.
		In 1896, Becquerel accidentally discovered the phenomenon of radioactivity in the course of his research on fluorescence.
		In 1903 Becquerel shared the Nobel Prize in physics with the French physicists Pierre and Marie Curie for their work on radioactivity.
	www.newlisbon.k12.wi.us /physicists/becquerel.html (127 words)

	Marie Curie - Research Breakthroughs (1897-1904)
		With numerous experiments Marie confirmed Becquerel's observations that the electrical effects of uranium rays are constant, regardless of whether the uranium was solid or pulverized, pure or in a compound, wet or dry, or whether exposed to light or heat.
		Likewise, her study of the rays emitted by different uranium compounds validated Becquerel's conclusion that the minerals with a higher proportion of uranium emitted the most intense rays.
		She went beyond Becquerel's work, however, in forming a crucial hypothesis: the emission of rays by uranium compounds could be an atomic property of the element uranium--something built into the very structure of its atoms.
	www.aip.org /history/curie/resbr1.htm (712 words)

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