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Topic: Cleveite

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	Helium - MSN Encarta
		Shortly afterwards it was identified as an element and named by the British chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer.
		The gas was first isolated from terrestrial sources in 1895 by the British chemist Sir William Ramsay, who discovered it in cleveite, a uranium-bearing mineral.
		In 1907 the British physicist Sir Ernest Rutherford showed that alpha particles are the nuclei of helium atoms, which later investigation confirmed.
	uk.encarta.msn.com /encyclopedia_761562418/Helium.html (731 words)

	Cleveite (Site not responding. Last check: 2007-10-22)
		Cleveite was the first known terrestrial source of helium, which is created by the alpha radiation of the uranium and then lies trapped (occluded) within the mineral.
		Cleve and Abraham Langlet succeeded in isolating helium from cleveite at about the same time.
		Yttrogummite is a variant of cleveite also found in Norway.
	cleveite.iqnaut.net (136 words)

	Helium (Site not responding. Last check: 2007-10-22)
		In 1895, British chemist William Ramsay isolated helium on Earth by treating cleveite with mineral acids.
		It was independently isolated from cleveite the same year by Swedish chemists Per Teodor Cleve and Abraham Langlet.
		The decay product is found in minerals of uranium and thorium, including cleveites, pitchblende, carnotite, monazite and beryl.
	www.gogoglo.com /wiki/en/wikipedia/h/he/helium.html (1171 words)

	Cleveite Information Center - cleveite bearings website
		It is an impure cleveite bearings website form of uraninite, and has the composition UO ·UO ·PO·ThO
		Cleveite was the first known terrestrial source of helium, which is created by the alpha radiation of the uranium and then lies trapped (occluded) within the cleveite rod bearings mineral.
		Cleve and Abraham Langlet succeeded in isolating helium from cleveite p68hv cleveite at about the same time.
	www.scipeeps.com /Sci-Chemistry_Topics_C_-_Cl/Cleveite.html (127 words)

	HELIUM. The Columbia Encyclopedia: Sixth Edition. 2000 (Site not responding. Last check: 2007-10-22)
		A bright yellow emission line was observed and was later shown to correspond to no known element; the new element was named by J. Lockyer and E. Frankland from helios [Gr.,=sun].
		Helium was isolated (1895) from a sample of the uranium mineral cleveite by Sir William Ramsay.
		Helium is less dense than any other known gas except hydrogen and is about one seventh as dense as air.
	www.bartleby.com /aol/65/he/helium.html (516 words)

	Chemical Periodic Table: Helium history
		He and English chemist Edward Frankland named the element after the Greek word for the Sun god, Helios, and, assuming it was a metal, gave it an -ium ending (a mistake that was never corrected).
		Ramsay was looking for argon but noticed the yellow D3 line after he removed nitrogen and oxygen from the gas liberated by the sulfuric acid he put on the cleveite sample.
		It was independently isolated from cleveite the same year by Swedish chemists Per Teodor Cleve and Abraham Langlet in Uppsala in Sweden.
	chemicalperiodictable.blogspot.com /2006/01/helium-history.html (478 words)

	Single, Double, Multiple Source Interference (Site not responding. Last check: 2007-10-22)
		Shortly afterward it was identified as an element and named by the British chemist Edward Frankland and the British astronomer Joseph Norman Lockyer.
		The gas was first isolated from terrestrial sources in 1895 by the British chemist William Ramsay, who discovered it in cleveite, a uranium-bearing mineral.
		In 1907 the British physicist Ernest Rutherford showed that alpha particles are the nuclei of helium atoms, which later investigation confirmed.
	hypertextbook.com /physics/waves/interference-light (174 words)

	BBC - h2g2 - Helium
		By dissolving the stone (in strong acids), by pulverizing it or by heating it up to 1000°C it is possible to release the occluded helium.
		The problem is normally to find suitable quantities of radioactive minerals such as cleveite (uranium dioxide), monazite (a mixture of cerium phosphate and thorium silicate) or thorianite (thorium dioxide).
		One kilogramme of cleveite usually yields 7-8 litres of pure helium (monazite gives 1-2 litres, thorianite 8-10 litres).
	www.bbc.co.uk /dna/h2g2/A1009045 (599 words)

	SUERC
		At the August 1894 meeting of the British Association they announced the discovery of argon.
		While seeking sources of argon in minerals, Ramsay discovered helium in the U-bearing mineral cleveite in 1895 - during one of the first ever in vacuo step-heating experiments.
		Guided by theoretical considerations founded on Mendeleev's periodic system he methodically sought the missing links in the new group of elements and isolated neon, krypton, and xenon from air in 1898.
	www.gla.ac.uk /suerc/isogeosci/noblegas/ramsay.html (231 words)

	Helium
		It is the centenary of Ramsay's discovery, not Lockyer's that we are celebrating this year.
		In March 1895, while examining the spectrum of gases given off by a uranium mineral called cleveite, Ramsay spotted a mysterious yellow line.
		Lacking a good spectroscope, he sent gas samples to both Lockyer and to William Crookes, a physicist famous for experimenting on cathode rays and being an advocate of telepathy.
	www.chemmybear.com /helium.html (1137 words)

	Free Essay Helium Chemistry Research Paper
		Shortly after it was identified as an element and named by the chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer.
		The gas was first isolated from terrestrial sources in 1895 by the British chemist Sir William Ramsay, who discovered it in cleveite.
		In 1907 Sir Ernest Rutherford showed that alpha particles are the nuclei of helium atoms.
	www.echeat.com /essay.php?t=27113 (887 words)

	Celestial Bodies (Site not responding. Last check: 2007-10-22)
		He repeated the experiment with a similar mineral called cleveite.
		Helium is the name given to a line in the solar spectrum, known to belong to an element, but that element has hitherto been unknown on the earth...
		The Swedish chemist Per Theodor Cleve, for whom cleveite was named, had his student Nils Abraham Langlet investigate it.
	homepage.mac.com /dtrapp/Elements/celestial.html (2148 words)

	Helium - Gurupedia
		William Ramsay isolated helium on Earth by treating cleveite with mineral acids.
		It was independently isolated from cleveite the same year by Swedish chemists
		In 1905, American chemists Hamilton Cady and David McFarland discovered that helium could be extracted from
	www.gurupedia.com /h/he/helium.htm (893 words)

	Periodic Table : Scholar edition: helium : History
		However the claims initiated a search for the new element on planet earth.
		In 1895, Sir William Ramsay discovered helium after treating cleveite, a uranium mineral, with mineral acids.
		Ramsey sent samples of the gas to Sir William Crookes and Sir Norman Lockyer who identified helium.
	www.webelements.com /webelements/scholar/elements/helium/history.html (238 words)

	Engines (Site not responding. Last check: 2007-10-22)
		Truly complete engines fully assembled with new Edelbrock aluminum intake manifolds, chrome rocker covers and timing covers.
		Hypereutectic pistons, Molly piston rings, Brass freeze plugs, Cleveite 77 bearings, Stage II rods with ARP bolts, performance hydraulic lifter camshaft, Comp true roller timing chain set, Hi-volume oil pump with new pick-up screen.
		New stainless steel valves, adjusted with new self-aligning rocker arms and hardened push rods.
	www.desertperformance.com /engines.htm (673 words)

	Helium - Background, Raw Materials, The Manufacturing, Quality Control (Site not responding. Last check: 2007-10-22)
		Lockyer suggested the name helium for the new element, derived from the Greek word helios for the sun.
		In 1895, English chemist Sir William Ramsay found that cleveite, a uranium mineral, contained helium.
		Swedish chemists P.T. Cleve and Nils Langlet made a similar discovery at about the same time.
	www.madehow.com /Volume-4/Helium.html (2314 words)

	Bearcastle Blog » The Discovery of Helium
		Naturally there has been much earnest searching after the hypothetical element, but until very recently wholly without success ….
		The matter remained a mystery until April, 1895, when Dr. Ramsey, who was Lord Rayleigh's chemical collaborator in the discovery of argon, in examining the gas liberated by heating a specimen of Norwegian cleveite, found in its spectrum the D
		line, conspicuous and indubitable … Cleveite is a species of uraninite or pitch blende, and it soon appeared that helium could be obtained from nearly all the uranium minerals.
	bearcastle.com /blog/?p=266 (533 words)

	Brujula.Net - Your Latin Stating Point (Site not responding. Last check: 2007-10-22)
		Ramsay was looking for argon but noticed the yellow D
		oxygen from the gas liberated by the sulfuric acid he put on the cleveite sample.
		It was independently isolated from cleveite the same year by Swedish chemists Per Teodor Cleve and
	www.brujula.net /english/wiki/Helium.html (3215 words)

	The Hindu : Guntur's bit for science
		In 1895, the British scientist, Sir William Ramsey, chanced upon helium while looking for the inert gas, argon.
		He discovered helium after treating cleveite, an ore of uranium, with mineral acids.
		He sent samples to Sir William Crookes and Sir Lockyer, who identified helium.
	www.hindu.com /thehindu/2003/09/25/stories/2003092500112200.htm (319 words)

	anthony cleve - ResearchIndex document query (Site not responding. Last check: 2007-10-22)
		announced the isolation of helium from the mineral cleveite on the 25th to the French Academy of Sciences
		1953)Ramsay subsequently isolated a gas from cleveite, a variety of uraninite.
		initial announcements reported that the gas from cleveite also contained argon.
	citeseer.ist.psu.edu /cis?q=Anthony+Cleve (601 words)

	Hazards of pitchblende
		I am interested in obtaining some radioactive mineral specimens.
		On several Web sites specimens of pitchblende (uraninite), cleveite, autunite, saleeite, davidite, torbernite, and others are offered for sale to collectors.
		Lots of folks collect geological specimens containing uranium (I even have couple of uranium ore-bearing rocks on display in my hallway at home) and so long as you do not have large numbers of samples, or samples quite rich in uranium, they should pose no problem but need to be handled with care.
	hps.org /publicinformation/ate/q5847.html (427 words)

	B series engine bearings vandervell rod main bearings mgb mga
		One company, Dana Corp, owns most of the major engine bearing manufacturers.
		These include, Glacier, Vandervell, AE, Cleveite, all of which are being shipped in AE boxes.
		Some bearings are still available in the tri-metal VP2 type of bearing, these are the Vandervell bearings, however, just because you have a 'box' of Vandervell bearings does not mean that you have VP2!
	www.aptfast.com /APT_Parts/Bseries_Parts/b_Bearings.htm (420 words)

	Science: Did You Know?- Helium was detected on the Sun before it was found on Earth. How is this possible? - AOL ...
		They named the new element helium, after helios, the Greek word for Sun.
		Helium was not found on the Earth until 1895, when Sir William Ramsay isolated it from the uranium mineral cleveite.
		Want to get it back the fun way?
	reference.aol.com /mf_science/_a/helium-was-detected-on-the-sun-before-it/20050126183709990007 (309 words)

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