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Topic: Crookes

	William Crookes - Wikipedia, the free encyclopedia
		William Crookes was born in London, he was the eldest son of Joseph Crookes, a tailor of north-country origin, by his second wife, Mary Scott.
		For many years Crookes conducted laborious experiments on the elements of the rare earths, elements so similar to one another in chemical properties that special methods for their separation had to be devised.
		Crookes published numerous papers on spectroscopy, a subject which always had a great fascination for him, and he made researches on a large variety of minor subjects.
	en.wikipedia.org /wiki/William_Crookes (1820 words)

	Crookes - Wikipedia, the free encyclopedia
		Crookes ward—which includes the districts of Crookes, Crosspool, and Sandygate—is one of the 28 electoral wards in City of Sheffield, England.
		Crookes (Grid reference SK328877) is a suburb of the City of Sheffield, England, about 2.5 km (1.5 miles) west of the city centre.
		Crookes lies near the course of a Roman road from Templeborough to Brough-on-Noe.
	en.wikipedia.org /wiki/Crookes (379 words)

	Adventures in CyberSound: Crookes, William
		Crookes invented the radiometer in 1875 and, beginning in 1878, investigated electrical discharges through highly evacuated "Crookes tubes." These studies laid the foundation for J. Thomson's research in the late 1890s concerning discharge-tube phenomena.
		At the age of 68, Crookes began investigating the phenomenon of radioactivity, which had been discovered in 1896, and invented a device that detected alpha particles emitted from radioactive material.
		Crookes maintained an interest in agriculture and warned in 1898 that the world's population would face starvation unless new fertilizer sources were discovered.
	www.acmi.net.au /AIC/CROOKES_BIO.html (498 words)

	Crookes Tube (Site not responding. Last check: 2007-11-07)
		Crookes (1832 - 1919) built a simple apparatus in about 1875 to study the effect of gas pressure on the voltage necessary to cause a spark.
		Crookes was able to examine the voltage necessary to get a spark (which could easily be detected by the use of an ampmeter in the system).
		In this variation, the anode is shaped as a ring so that some of the electrons traveling from the cathode pass through the ring and strike the screen.
	neon.chem.uidaho.edu /~honors/crookes.html (519 words)

	Sir William Crookes Spiritist Society (Site not responding. Last check: 2007-11-07)
		William Crookes was born on 17 June, 1832 in London.
		He explained the reasons for his inquiry: 'I consider it the duty of scientific men who have learnt exact modes of working to examine phenomena which attract the attention of the public, in order to confirm their genuineness or to explain, if possible, the delusions of the dishonest and to expose the tricks of deceivers'.
		By his own account Crookes had originally, 'like other men who thought little of the matter and saw little', taken Spiritualism to be superstition and trickery; he stressed that his aim would be to substitute a strictly scientific appraisal 'for the loose claims of the pseudo-scientific Spiritualists'.
	www.sirwilliam.org /html/Sir%20_William.htm (645 words)

	FLORENCE COOK & KATIE KING
		Crookes was in the house, but was not around much, as she was expecting their tenth child at the time and was usually confined to her room.
		Crookes checked to be sure that Cook was still lying on the sofa and he saw that she was -- although incredibly, he never moved the shawl to be sure that it was really her.
		Crookes was asked to come over and hold Florence in his arms, as she was falling to the floor and sobbing hysterically, and when he looked around, the white-robed figure of Katie was gone.
	www.prairieghosts.com /florence.html (3415 words)

	William Crookes
		Crookes, Sir William 1832-1919, man of science, was born in London 17 June 1832, the eldest son of Joseph Crookes, a tailor of north-country origin, by his second wife, Mary Scott.
		The method of spectrum analysis, introduced by Bunsen and Kirchhoff, was received by Crookes with great enthusiasm, and, on applying it to the examination of the seleniferous deposit from a sulphuric acid factory, he discovered an unknown green line in the spectrum.
		These were the properties of highly rarefied gases, with which he began to occupy himself immediately, and the investigation of the elements of the "rare earths", upon which he embarked shortly after 1880.
	www.chem.ox.ac.uk /icl/heyes/LanthAct/Biogs/Crookes.html (1549 words)

	welcome to Crookes Healthcare (Site not responding. Last check: 2007-11-07)
		Crookes Healthcare makes no representation that any product referred to in the materials on this web site are appropriate for use, or available in other locations.
		Crookes Healthcare shall not be liable for any damage or injury which may arise from the use of or reliance upon any information provided in this web site.
		Crookes Healthcare hereby authorises you to copy materials published by it on this web site for non-commercial use only, provided any copy of these materials which you make shall retain all copyright and other proprietary notices contained herein.
	www.crookes.co.uk /upload/tplt_NEWCROOKES_.asp?page=2100002294 (548 words)

	VICTOR ZAMMIT -- A Lawyer on Sir William Crookes (Site not responding. Last check: 2007-11-07)
		Crookes made points 1 to 8 in public repeatedly at the time and they were not contradicted by the many quality eye-witnesses.
		Crookes was very cautious in his attitude to acceptance of the afterlife and in any event never allowed his personal convictions to intrude on his consciousness as an empirical scientist.
		Crookes' experiments into the afterlife add to the cumulative objective and subjective evidence that we survive death and that communication between those who passed on and us here on earth is possible.
	www.victorzammit.com /articles/william.html (4677 words)

	Crookes - Sheffield
		Crookes itself started as a straggling settlement and even at the begining of the nineteeth century many of the medieval open field patterns still survived and were in a remarkable state of preservation.
		Crookes at that time was very much in the countryside.
		It seems to me that the painting shows Crookes Moor an area of Crookes that was noted for its reservoirs and its racecourse.
	www.chrishobbs.com /crookes.htm (684 words)

	ISS: Biography of William Crookes
		Crookes' experiments with Daniel D. Home demonstrated the existence of a 'psychic force' wholly ignored by science.
		Crookes' article in the Quarterly Journal of Science, and their judicial tone, present a striking contrast to the inaccuracy, spiteful depreciation, under the shield of anonymity, of other men's work and the grotesque self-assertion which disfigured Dr. Carpenter's criticism".
		Crookes began by establishing whether Cook and King were two separate entities; this he proved beyond all reasonable doubt.
	www.survivalafterdeath.org /researchers/crookes.htm (517 words)

	Crookes tube on Encyclopedia.com (Site not responding. Last check: 2007-11-07)
		CROOKES TUBE [Crookes tube] device invented by Sir William Crookes (c.1875) consisting essentially of a sealed glass tube from which nearly all the air has been removed and through the walls of which are passed two electrodes.
		When a high voltage is applied between the two electrodes, electrons are emitted from the cathode and are accelerated toward the anode.
		The Crookes tube was used by Crookes in a number of experiments and was later used in experiments leading to the discovery of X rays by W. Roentgen (1895) and of the electron by J. Thomson (1897).
	www.encyclopedia.com /html/C/Crookest.asp (246 words)

	ISS: Chapter 5: How Sir William Crookes came to Believe in Spirits: Nandor Fodor
		Walter Crookes, his brother, Sir William Higgins, the eminent physicist and astronomer, ex-President of the Royal Society, and Serjeant Cox, a prominent lawyer and judge.
		Crookes was a practical man. He had two problems to grapple with.
		The coming of Crookes definitely settled her claim to be a separate identity.
	www.survivalafterdeath.org /books/fodor/chapter5.htm (2150 words)

	MSN Encarta - Search Results - Crookes tube
		Invented by the British chemist and physicist Sir William Crookes, the...
		Cathode rays, or beams of electrons in evacuated glass tubes, were first noted by the British chemist and physicist Sir William Crookes in 1878.
		Crookes, Sir William (1832-1919), British chemist and physicist, born in London, and educated at the Royal College of Chemistry.
	encarta.msn.com /encnet/refpages/search.aspx?q=Crookes+tube (131 words)

	The Crookes Spinthariscope
		Sir William Crookes, the very picture of Victorian elegance, was entertaining himself by observing the fluorescence that alpha rays from radium produced on a zinc sulfide screen (Romer 1960).
		Crookes described the effect of such an adjustment as follows: "on bringing the radium nearer the screen the scintillations become more numerous and brighter, until when close together the flashes follow each other so quickly that the surface looks like a turbulent, luminous sea."
		Such a miraculous instrument required a suitably wondrous name and Crookes obliged: "I propose to call this little instrument the Spinthariscope from the Greek word scintillation." To Lawrence Badash (1964), it was only natural that the eloquent Sir William chose the name from Homer's Hymn to the god Apollo.
	www.orau.org /ptp/articlesstories/spinstory.htm (805 words)

	Crookes - UK Shop Search > Crookes (Site not responding. Last check: 2007-11-07)
		Crookes, Sir William 1832-1919, man of science, was born in London 17 June 1832, the eldest son of Joseph Crookes, a tailor of north-country origin...
		VA Crookes (Contracts) Ltd are a UK based company specialising in concrete repair, concrete protection and...
		The once distant village suberb of Crookes, was established as a place to stay, when a break from...
	www.infospot.com /searchdirectory/shops/Crookes.html (319 words)

	fUSION Anomaly. William Crookes
		Crookes, Sir William (1832-1919), British chemist and physicist, born in London.
		Crookes conducted research in a number of fields; his achievements include discovering the element thallium and developing a sodium amalgamation
		Sir William Crookes, inventor of the X-ray cathode tube, was one of the founders of the English Society for Psychical Research, created to explore the burgeoning 'spiritualist' movement of the late 1800s.)
	fusionanomaly.net /williamcrookes.html (345 words)

	Curriculum Vitae - Dr. Peter Crookes
		Crookes PF, Kaul BK, DeMeester TR, Stein HJ, Oka M. Manometry of individual segments of the distal esophageal sphincter: its relation to functional incompetence.
		Crookes PF, Dreuw B, Costantini M, DeMeester TR: The Diaphragmatic Component of the Lower Esophageal High Pressure Zone in Gastroesophageal Reflux with and without Hiatal Herniation.
		Crookes PF, Heimbucher J, Peters JH, Bremner CG, DeMeester TR: Vector Volume Analysis of the Lower Esophageal Sphincter Demonstrates the Effect of Treatment of Achalasia.
	www.surgery.usc.edu /divisions/nontrauma/cv-crookes.html (2577 words)

	VA Crookes Contracts UK - Concrete Protection and Structural Waterproofing
		VA Crookes (Contracts) Ltd are a UK based company specialising in concrete repair, concrete protection and anti carbonation coatings.
		V A Crookes, a UK based company, carry out epoxy resin applications including crack injection and crack injection with water reactive polyurethane resin to seal leaks.
		V A Crookes undertake external refurbishment to concrete elements of building facades, and liquid roofing membranes.
	www.vacrookescontracts.co.uk (355 words)

	AIM25: Royal Institution of Great Britain: Crookes, Sir William (1832-1919)
		Administrative/Biographical history: William Crookes was born the son of Joseph Crookes, tailor, and Mary Scott in London, in 1832.
		Crookes researched into spectra and in 1861 he discovered a new element which he called thallium.
		In 1865 he discovered the process of extracting precious metals from ores, however it had already been discovered in America and Crookes had to negotiate half rights over patents for using sodium amalgam, only to be superseded by the discovery of potassium cyanide as the best solvent of gold.
	www.aim25.ac.uk /cats/17/3280.htm (765 words)

	Crookes Mineral Fluorescence Tube (Site not responding. Last check: 2007-11-07)
		One of the most popular forms of such tubes is the fluorescence tube, a vacuum discharge tube in which an object is placed opposite the cathode, or negative electrode.
		Some years before J.J. Thomson’s landmark discovery of the electron in 1897, Crookes used a fluorescence tube to demonstrate that some particle of matter was traveling from the cathode to the target object, causing it to fluoresce.
		In this mineral fluorescence tube, handmade in the United States by an American scientific glassblower, a piece of calcium tungstate, the same mineral used in x-ray fluoroscopic screens, is handsomely bezeled inside the bell of the tube.
	people.clarityconnect.com /webpages2/arcsandsparks/mineraltube.html (147 words)

	Treasures - Crookes Radiometer (c1875) (Site not responding. Last check: 2007-11-07)
		The radiometer was devised by William Crookes in 1875, while investigating physical effects in a high vacuum.
		With its vanes rotating without apparent cause when placed in the light, the Crookes radiometer remains a popular scientific toy.
		Crookes was led to this work by anomalies he had noticed while weighing samples in a vacuum, during experiments to determine the atomic weight of the element thallium.
	www.sciencemuseum.org.uk /collections/treasures/crooke3.asp (112 words)

	Crookes
		In my own contributions in the task line of SLA work (e.g., Crookes and Rulon, 1988), I have certainly thought that there were implications from this part of SLA to what forms of classroom interaction, both student-student, and student-teacher, might be most productive.
		Crookes, G., and Rulon, K. Topic and feedback in native-speaker/non-native speaker discourse.
		Crookes, G., and Schmidt, R. Motivation and second language learning: Reopening the research agenda.
	www2.hawaii.edu /~crookes/Ellthing.html (10227 words)

	Glass
		These are released from the surface of a metal plate called the cathode and fixed in a vacuum within a glass tube.
		In 1878, Crookes became convinced that the dark space he has observed between the cathode and the glow, extended farther from the cathode as the pressure inside the glass tube was reduced.
		The pressure could be reached to the point at which the dark space touched the far end of the tube opposite the cathode.
	www.sparkmuseum.com /GLASS.HTM (919 words)

	Crookes Brothers Limited (CKS) - Renishaw, Kwazulu Natal
		Crookes Brothers Limited is a producer of primary agricultural products with its head office at Renishaw, Umdoni, KwaZulu-Natal.
		The group is engaged in sugar cane, fruit and grain farming and animal husbandry in KwaZulu-Natal, Western Cape, Mpumalanga and Swaziland.
		Crookes Brothers Limited endeavors to produce the highest quality primary agricultural products in the most efficient and cost effective manner.To achieve this goal the company:
	www.cbl.co.za (223 words)

	How does a light-mill work?
		In 1873, while investigating infrared radiation and the element thallium, the eminent Victorian experimenter Sir William Crookes developed a special kind of radiometer, an instrument for measuring radiant energy of heat and light.
		Crookes at first believed this demonstrated that light radiation pressure on the fl vanes was turning it round just like water in a water mill.
		It seems that Maxwell was delighted to see a demonstration of the effect of radiation pressure as predicted by his theory of electromagnetism.
	math.ucr.edu /home/baez/physics/General/LightMill/light-mill.html (1520 words)

	Geissler and Crookes Tubes
		Sir William Crookes improved upon Geissler's technology so these are sometimes referred to as "Crookes Tubes".
		Sir Crookes declined due to a previous engagement at a seance.
		It was unclear to me if he was taking electrical equipment to the seance, but it was my impression is that he was going to perform experiments.
	www.oneillselectronicmuseum.com /page9.html (391 words)

	psychic
		The term was first used by renowned chemist William Crookes to describe renowned medium and magician Daniel Dunglas Home (1833-1886).
		In 1871, Crookes attended a Fox sisters séance and came away convinced that the rapping noises they produced were genuine spirits.
		She not only cheated as a medium, she and Crookes seem to have cheated on Crookes's wife.
	skepdic.com /psychic.html (2597 words)

	Crookes - Compare Prices, Reviews and Buy at NexTag - Price - Review
		The robust appeal of these hand forged iron designs will be appreciated by those who yearn for the old-style virtues of quality craftsmanship and lasting materials.
		The iron bands on the fireplace tool stand are a perfect accent to the classic look of the set.
		The Standard Crook Cane is a lightweight and easy to adjust cane.
	www.nextag.com /crookes/search-html (293 words)

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