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	Freidrich Dorn Biography / Biography of Freidrich Dorn World of Chemistry Biography
		Friedrich Ernst Dorn was the German physicist who discovered radon in 1900, although his discovery was nearly ignored.
		Dorn's announcement of his findings came upon the same time as English physicist William Ramsay revealed his the discoveries of the five other noble gases.
		Dorn called his discovery "radium emanation." Ramsay eight years later gave it the name "niton." It was not given the name "radon" until 1923.
	www.bookrags.com /biography-freidrich-dorn-woc (495 words)

	Dorn Radon (Site not responding. Last check: 2007-10-21)
		Radon was discovered by Friedrich Ernst Dorn, a German chemist, in 1900 while studying radium's decay chain...
		Radon (named for radium) was discovered in 1900 by Friedrich Ernst Dorn, who called it...
		Radon was discovered by Friedrich Ernst Dorn, a German chemist, in 1900 while...
	www.radon-testing.info /dorn-radon.html (498 words)

	Chemical Element: radon (Modern Latin: from radium and argon, its chemical cousin; radioactive gas).
		Friedrich Ernst Dorn, while studying the radium that the Curies had discovered, found in 1900 that it gave off not only radiations but a gas that was itself radioactive.
		The gas was called “radium emanation” at first, but on closer study it turned out to be a noble gas, the sixth one, and was named “radon”.
		Dorn, apparently also called it “niton” after “the element radium” (radon was called “niton” because it was based on the Latin word, nitens, meaning “shining, bright, glittering”).
	www.wordinfo.info /words/index/info/view_unit/3147/?letter=C&spage=12 (159 words)

	Radon
		Any significant concentration of radon in a stream or river is a good indicator that there are local inputs of ground water.
		Radon (named for radium) was discovered in 1900 by Friedrich Ernst Dorn, who called it radium emanation.
		In 1908 William Ramsay and Robert Whytlaw-Gray, who named it niton (Latin nitens meaning "shining"), isolated it, determined its density and that it was the heaviest known gas.
	www.ebroadcast.com.au /lookup/encyclopedia/ra/Radon.html (588 words)

	Learn more about Friedrich Ernst Dorn in the online encyclopedia. (Site not responding. Last check: 2007-10-21)
		Learn more about Friedrich Ernst Dorn in the online encyclopedia.
		Friedrich Ernst Dorn (1848-1916) was a German physicist who discovered radon in 1898.
		Dorn initially called the gas niton from the Latin word "nitens" meaning "shining' due to the phosphorescence of cooled radon.
	www.onlineencyclopedia.org /f/fr/friedrich_ernst_dorn.html (164 words)

	Dorn Family Crest (Site not responding. Last check: 2007-10-21)
		Dorn is a name for someone who lived near a thorn-bush or hedge.
		Land proprietorship and management were the sole source of wealth and power in the Middle Ages and the Dorn family, as noble landowners, became prestigious members of the landed aristocracy.
		In the Dorn coat of arms as in all coat of arms the crest is only one element of the full armorial achievement.
	www.houseofnames.com /xq/asp.fc/qx/dorn-family-crest.htm (596 words)

	Friedrich Ernst Dorn - TheBestLinks.com - Fredrich Ernst Dorn, Germany, Latin, Physicist, ... (Site not responding. Last check: 2007-10-21)
		Friedrich Ernst Dorn - TheBestLinks.com - Fredrich Ernst Dorn, Germany, Latin, Physicist,...
		Fredrich Ernst Dorn, Friedrich Ernst Dorn, Germany, Latin, Physicist, Radium...
		You can add this article to your own "watchlist" and receive e-mail notification about all changes in this page.
	www.thebestlinks.com /Fredrich_Ernst_Dorn.html (131 words)

	Radon History Summary (Site not responding. Last check: 2007-10-21)
		Radon was discovered by the German physicist Friedrich Ernst Dorn in 1900.
		Dorn's discovery came during the busy period following the discovery of radioactivity in 1896 by the French physicist Antoine-Henri Becquerel.
		It was the third radioactive element to be discovered, after radium and polonium, first isolated by Marie Curie and her husband Pierre.
	www.bookrags.com /history/chemistry/radon-woc (644 words)

	SDV Nuclear Glossary (Site not responding. Last check: 2007-10-21)
		Friedrich Giesel found actinium in 1902 although he was unaware of the work by Debierne (Giesel proposed the name emanium for this element).
		Cadmium was discovered in 1817 by Friedrich Strohmeyer while he was conducting experiments on zinc carbonate.
		Rhenium was discovered in 1925 by Otto Berg, Karl Friedrich Noddack, and Ida Tacke during experiments on platinum ore and the mineral columbite.
	glossary.dataenabled.com /sdvglossary_elements.html (4482 words)

	ninemsn Encarta - Radon
		Radon, symbol Rn, colourless, odourless radioactive gaseous element that is the heaviest of the noble gases of the periodic table.
		Radon-222 was discovered in 1900 by the German chemist Friedrich Ernst Dorn.
		Since 1962, however, chemists have been able to make radon compounds.
	au.encarta.msn.com /encyclopedia_761570164/Radon.html (274 words)

	iqexpand.com (Site not responding. Last check: 2007-10-21)
		Look for Friedrich ernst dorn in Wiktionary, our sister dictionary project.
		Look for Friedrich ernst dorn in the Commons, our repository for free images, music, sound, and video.
		Friedrich Engels Marx Communist London Published German Began
	friedrich_ernst_dorn.iqexpand.com (129 words)

	MoldFacts
		Although the discovery is also credited to German physicist Friedrich Ernst Dorn in 1900, it may be fairer to say that Rutherford discovered radon's alpha radiation and that Dorn found that radium was giving off a gas.
		Radon is a colorless, chemically un-reactive inert gas, it is the densest gas known.
		Named after the element "radium" (radon was called niton at first, from the Latin word "nitens" meaning "shining") but has been called radon since 1923.
	www.vernamaeeady.com /RadonFacts.html (2502 words)

	The Amazing Radon Gas (Site not responding. Last check: 2007-10-21)
		It was identified centuries later as lung cancer but its cause - radon - remained unknown until the early 1900's.
		German physicist Friedrich Ernst Dorn discovered in 1900 that radium was giving off a gas - "radium emanation." The gas became known as niton (from the Latin word "nitens" for "shining") and later, radon.
		It was the Nazi regime in Germany that instituted the first safety regulations in mines against radon.
	www.radonseal.com /radon_gas.htm (829 words)

	Dorn Coat of Arms, Family Crest
		Spelling variations include: Dawney, Dawny, Dawn, Dawnie, Dawne, Dawnay, Dawnsey, Daun, Dorn, Dorne and many more.
		First found in Yorkshire where they were anciently seated as Lords of the Manor.
		It is hard to say exactly when man first came to the lands that were to become the British Isles, but it can be said with certainty that Paleolithic tribes were flourishing there by 8000 BC.
	www.houseofnames.com /xq/asp/s.Dorn/Origin.EN/sId./qx/coatofarms_details.htm (1220 words)

	86 Radon
		In the same year Pierre and Marie Curie observed a similar phenomenon with Radium, except that the "gas" emitted by Radium remained radioactive for a month Comptes rendus hebdomadaires des séances de l\'Académie des sciences 129 (1899), pp.
		In 1900, Friedrich Ernst Dorn (1848-1916) confirmed the findings of Rutherford and the Curies Abh.
		Most standard sources on the chemical elements list Dorn as the discoverer in 1900.
	elements.vanderkrogt.net /elem/rn.html (847 words)

	Elements - Radon
		Recently, radon buildup in homes from the surrounding soil and rocks has become a safety issue and some areas around the world test homes for radon gas.
		Radon was discovered in 1900 by Friedrich Ernst Dorn, who called it niton.
		It was called niton but has been called radon since 1923.
	www.atral.com /ElementsRadon1.html (179 words)

	bargainshare.com -> Anyone else have a radioactive collection?
		They found that the chemist misjudged the colors of chemicals made with chromium and with vanadium, thus confusing the two.
		Similarly, Marshall helped clarify the discovery of radon by unearthing a long-overlooked paper by German chemist Friedrich Ernst Dorn.
		Reading the original paper, Marshall found that Dorn had not discovered radon after all; his experiments essentially repeated the work of New Zealander Ernest Rutherford from a few years earlier.
	www.bargainshare.com /index.php?showtopic=45138 (1402 words)

	Timeline of chemical element discovery (Site not responding. Last check: 2007-10-21)
		Cadmium independently discovered by Friedrich Strohmeyer and K.S.L Hermann
		Beryllium - Independently discovered by Friedrich Wöhler and A.A.B. Bussy
		Radon discovered by Fredrich Ernst Dorn who called it nitron
	1-free-software.com /en/wikipedia/t/ti/timeline_of_chemical_element_discovery.html (552 words)

	Associated Radon Services
		Although the discovery is also credited to German physicist Friedrich Ernst
		Dorn in 1900, it may be fairer to say that Rutherford discovered radon's alpha
		radiation and that Dorn found that radium was giving off a gas.
	www.radonserv.com /message.asp?id=578 (3124 words)

	Radon (Site not responding. Last check: 2007-10-21)
		Pronounced ray-don, the name is derived from radium.
		Radon was discovered in 1900 by Friedrich Ernst Dorn at Halle, Germany, when he investigated the pressure of gas which built up inside sealed ampules of radium compounds.
		Radon is obtained by bubbling air through a radium salt solution and collecting the gas plus air.
	www.science501.com /pcRn.html (112 words)

	Physics
		Under J.S.C. Schweigger, the Physics Institute became an independent department in the Faculty of Philosophy.At the beginning of the 20th century, the physicist Friedrich Ernst Dorn (1886-1916) worked on subjects like x-ray radiation, radioactivity and quantum mechanics at the Physics Institute in Halle.
		In 1900, Dorn discovered a radioactive gas which later received the name radon.
		After Dorn, physicists like Gustav Mie (Mie effect) and Adolf Smekal (Raman effect) influenced the development of physics in Halle.
	www.verwaltung.uni-halle.de /studium/stualf/eng/physik_d_e.htm (626 words)

	The Environmental Literacy Council - Radon (Site not responding. Last check: 2007-10-21)
		These particles can attach themselves to dust or directly to the lining of the lungs, and are a potential cause of lung cancer, particularly in smokers.
		When radon was first discovered in the early 1900s by German chemist Friedrich Ernst Dorn, it was called niton and promoted for its health benefits.
		Bathing in water that contained radon was a health fad as well.
	www.bonus.com /contour/Env_Lit/http@@/www.enviroliteracy.org/article.php/82.html (673 words)

	[No title]
		Radon was discovered by German Physicist Friedrich Ernst Dorn in1900 and was originally called "radium emanation".
		Radon is a colorless, odorless, tasteless, and invisible gas.
		The EPA estimates that 1-3% of homes exceed twice that amount, or 8 pCi/L. Radon LINKS:
	www.angelfire.com /yt/radiation/radon.html (670 words)

	radon
		Radon gas is released from rocks and soil containing these two elements.
		Radon was discovered by scientist Friedrich Ernst Dorn in 1898 when he named it Radon, afer Radium.
		Radon can be either man-made or found naturally in nature.
	www.mvschools.org /ms/academics/science/elements/ekdishradon/eckdishradon.html (486 words)

	Radon (Site not responding. Last check: 2007-10-21)
		This is because Radon is formed from the decay of uranium.
		A German chemist by the name of Friedrich Ernst Dorn discovered radon in
		Some were lead to believe that radon was chemically made, they
	www.k12.de.us /science/lettieri/pt/rn/rn.htm (137 words)

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