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	Archimedes (mathematician)
		The lever had been used by other scientists, but it was Archimedes who demonstrated mathematically that the ratio of the effort applied to the load raised is equal to the inverse ratio of the distances of the effort and load from the pivot or fulcrum of the lever.
		Archimedes is credited with having claimed that if he had a sufficiently distant place to stand, he could use a lever to move the world.
		Archimedes had decreed that his gravestone be inscribed with a cylinder enclosing a sphere together with the formula for the ratio of their volumes – a discovery that he regarded as his greatest achievement.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016326.html (707 words)

	Archimedes' screw
		Archimedes' screw is one of several inventions and discoveries by Archimedes.
		It consists of a screw inside a pipe, and is used to lift water.
		The lower end of the device is put in the water, and the screw is then turned (usually by a windmill or by animal labor), raising the water.
	www.ebroadcast.com.au /lookup/encyclopedia/ar/Archimedes'_screw.html (53 words)

	Archimedes - MSN Encarta
		Archimedes Systems is a premier provider of leading edge personal financial planning decision support tools for the financial services industry.
		Archimedes was born in Syracuse, Sicily, and educated in Alexandria, Egypt.
		He is best known for discovering the law of hydrostatics, often called Archimedes' principle, which states that a body immersed in fluid loses weight equal to the weight of the amount of fluid it displaces.
	encarta.msn.com /encyclopedia_761558086/Archimedes.html (427 words)

	Archimedes - Conservapedia
		Archimedes’ most famous (though not the greatest) accomplishment was when Hiero became suspicious that a crown made for him by his goldsmith was diluted with silver.
		Archimedes also discovered the "Archimedes' principle", allegedly when he was sitting in a bathtub one day, recognizing that volume of a body can be measured by seeing how much the water rises when the body is submerged.
		Archimedes reportedly was absorbed in concentration, drawing figures in the dirt with a stick when a Roman soldier demanded he surrender.
	www.conservapedia.com /Archimedes (413 words)

	math lessons - Archimedes
		Archimedes became a popular figure as a result of his involvement in the defense of Syracuse against the Roman siege in the First and Second Punic Wars.
		In this scroll Archimedes obtains the result he was most proud of: that the area and volume of a sphere are in the same relationship to the area and volume of the circumscribed straight cylinder.
		Archimedes did probably consider these methods not mathematically precise, and he used these methods to find at least some of the areas or volumes he sought, and then used the more traditional method of exhaustion to prove them.
	www.mathdaily.com /lessons/Archimedes (1638 words)

	Archimedes - Crystalinks
		Archimedes Screw, or Archimedean screw, or screwpump, is a machine historically used for transferring water from a low-lying body of water into irrigation ditches.
		Archimedes had stated in a letter to King Hieron that given the force, any given weight might be moved, and even boasted, we are told, relying on the strength of demonstration, that if there were another earth, by going into it he could remove this.
		Archimedes' work was not as widely recognized in classical antiquity as that of Euclid, and some of his treatises are believed to have been lost when the Library of Alexandria was damaged at various periods in its history.
	www.crystalinks.com /archimedes.html (4230 words)

	Archimedes Palimpsest
		Archimedes was born in the city of Syracuse on the island of Sicily in 287 BC.
		Archimedes' tombstone was, as he had wished, engraved with an image of a sphere within a cylinder, after one of his geometrical treatises.
		Archimedes is also credited with the discovery of the principle of buoyancy, or the power of a fluid to exert an upward force on a body placed in it.
	www.archimedespalimpsest.org /archimedes_bio1.html (1069 words)

	Archimedes
		Archimedes made many contributions to geometry in his work on the areas of plane figures and on the areas of area and volumes of curved surfaces.
		Archimedes proved that the volume of an inscribed sphere is two-thirds the volume of a circumscribed cylinder.
		Archimedes was not content to use that as the biggest number, so he decided to conduct an experiment using large numbers.
	library.thinkquest.org /4116/History/archimedes.htm (269 words)

	Archimedes' screw – FREE Archimedes' screw Information \| Encyclopedia.com: Facts, Pictures, Information!
		Archimedes' screw a simple mechanical device believed to have been invented by Archimedes in the 3d cent.
		BC It consists of a cylinder inside of which a continuous screw, extending the length of the cylinder, forms a spiral chamber.
		One version is that Archimedes, now 75 years old, was alone and so absorbed in examining a diagram that he was unaware of the capture of the city.
	www.encyclopedia.com /doc/1E1-Archimscr.html (824 words)

	Archimedes .................................
		Archimedes was well known in his own time, not because people had an interest in new mathematical ideas, but because Archimedes had invented many machines which were used as engines of war.
		Archimedes was also known as an outstanding astronomer; his observations of solstices were used by other astronomers of the era.
		Archimedes is considered to be one of the greatest mathematicians of all time.
	www.worsleyschool.net /science/files/archimedes/page.html (358 words)

	Inventor of the Week: Archive
		Archimedes was also a talented inventor, having created such devices as the catapult, the compound pulley, the lever, and a system of burning mirrors that was used in battle to focus the sun’s rays on enemies’ ships.
		Archimedes also created a model planetarium, designed a system for expressing large numbers, and made many advances in the understanding of geometry, creating major writings on the sphere and cylinder, spirals, plane equilibriums, conoids and spheroids, and measurement of circles.
		Archimedes died in Syracuse in approximately 212 B.C., as the city was being sacked by the Roman army during the Second Punic War.
	web.mit.edu /invent/iow/archimedes.html (483 words)

	[No title]
		Archimedes had investigated properties of the lever and pulley, and it is on the basis of these that he is said to have asserted, "Give me a place to stand and I can move the earth." Hieron, amazed at this, asked for some physical demonstration.
		Archimedes was born and mainly lived in Syracuse on the eastern coast of Sicily.
		Archimedes (287 - 212 BCE) is usually regarded as one of the three greatest mathematicians of all time, the other two being the German Carl Friedrich Gauss (1777 - 1855) and the English Isaac Newton (1642 - 1727).
	www.lycos.com /info/archimedes--king-hiero.html (530 words)

	Archimedes Rotorcraft & V/STOL Museum
		He is best known for his discovery of the relation between the surface and volume of a sphere and its circumscribing cylinder, for discovering PI, for "Archimedes' principle" (specific gravity) and for inventing the Archimedes screw which is the basis of rotorblades and propellers.
		Archimedes Principal states: an object immersed in a fluid experiences a buoyant force that is equal in magnitude to the force of gravity on the displaced fluid.
		Archimedes was killed when Syracuse was eventually captured by the Roman general Marcus Claudius Marcellus in the autumn of 212 BC.
	www.archimedesmuseum.org /man.php (284 words)

	Archimedes
		While Archimedes was in the bathtub, he noticed that when his body was submerged the water rose and his body felt lighter.
		Archimedes was born in Sicily, Italy in 298 BC.
		Archimedes was involved in hydrostatics, static mechanics, and pycnometry [1].
	members.aol.com /raspdou/8.htm (1285 words)

	Archimedes of Syracuse
		Archimedes proved, among many other geometrical results, that the volume of a sphere is two-thirds the volume of a circumscribed cylinder.
		Often times Archimedes' servants got him against his will to the baths, to wash and anoint him, and yet being there, he would ever be drawing out of the geometrical figures, even in the very embers of the chimney.
		Archimedes was killed during the capture of Syracuse by the Romans in the Second Punic War.
	www.math.tamu.edu /~don.allen/history/archimed/archimed.html (972 words)

	ARCHIMEDES GREEK PHILOSOPHER AND INVENTOR - SOLAR NAVIGATOR WORLD ELECTRIC NAVIGATION CHALLENGE, THE BLUEBIRD ELECTRIC ...
		Archimedes is generally regarded as the greatest mathematician and scientist of antiquity and one of the three greatest mathematicians of all time.
		The screw is still used to lift water in the Nile delta in Egypt, and is often used to shift grain in mills and powders in factories.
		In this book Archimedes obtains the result he was most proud of: that the area and volume of a sphere are in the same relationship to the area and volume of the circumscribed straight cylinder.
	www.solarnavigator.net /inventors/archimedes.htm (2065 words)

	Archimedes
		Archimedes was born in Syracuse, Sicily in 287 B.C. He was the son of Phidias, an astronomer.
		In Archimedes' tomb he requested (before he died) that a sphere containing a cylinder, with the ratio of the two, be inscribed upon it.
		Archimedes was not satisfied with the definition of pi as 3 1/7 0r 22/7.
	www.andrews.edu /~calkins/math/biograph/bioarch.htm (1157 words)

	The Evolution of the Screw Propeller
		One patent from 1824 describes a screw as a "revolving oar." (95) Two years later, someone patented "improvements in wheels and paddles for propelling boats," which consisted of a "spiral paddle." (95) Another patent lists "sculling wheels, or screw propelling wheels." (96) All of these accounts display a certain difficulty in describing a novel object.
		"One great advantage of the screw being placed [in the keel] is, the transferring the whole weight of the propelling apparatus from the top sides of a vessel to the lowest part of the hull."(91) This transfer of weight lowers the center of gravity, making the vessel less inclined to pitch and roll.
		Despite this, the author notes that the Archimedes was "not built for extreme speed, but more to show the practicability of uniting sailing and steaming qualities in one vessel, [and] has succeeded in beating many vessels of superior power, built expressly for steaming." (93) This combination was also made explicit in the drawing at right.
	www.cogulus.com /archimedes/essays/essay1.html (1445 words)

	NOVA \| Infinite Secrets \| Library Resource Kit \| Who Was Archimedes? \| PBS
		Archimedes of Syracuse was one of the greatest mathematicians in history.
		The most famous of these were the Archimedes' Screw (a device for raising water that is still used in crop irrigation and sewage treatment plants today) and Archimedes' principle of buoyancy.
		As he wished, Archimedes' tombstone is marked with the figure of a sphere enclosed by a cylinder and the 2:3 ratio of their volumes.
	www.pbs.org /wgbh/nova/archimedes/lrk_biography.html (788 words)

	Biographies
		Touted by many as the greatest mathematician of antiquity, Archimedes is credited with (among many other things) inventions that aided the Greeks in the First and Second Punic Wars against the Romans, such as the claw of Archimedes and the Archimedes' screw.
		The Archimedes' screw was used to transport water to higher levels for irrigation, a helpful invention then and now.
		Archimedes was challenged to test the King's suspicions, and while taking a bath, realized that the amount of water displaced from the tub was proportional to his density.
	tulsagrad.ou.edu /statistics/biographies/Archimedes.htm (327 words)

	Articles.roocon.com
		Archimedes is recorded as born in 287 B.C., a very long time ago in a place far different from now.
		In Archimedes tomb he requested (before he died) that a sphere containing a cylinder, with the ratio of the two inscribed upon it, be placed on his tomb.
		Archimedes discoveries, principals and theories are now considered the basics and standards of mathematics today.
	home.earthlink.net /~spume/article25-archimedes.htm (1010 words)

	Archimedes biography
		There are, in fact, quite a number of references to Archimedes in the writings of the time for he had gained a reputation in his own time which few other mathematicians of this period achieved.
		Archimedes was killed in 212 BC during the capture of Syracuse by the Romans in the Second Punic War after all his efforts to keep the Romans at bay with his machines of war had failed.
		Archimedes considered his most significant accomplishments were those concerning a cylinder circumscribing a sphere, and he asked for a representation of this together with his result on the ratio of the two, to be inscribed on his tomb.
	www-groups.dcs.st-and.ac.uk /~history/Biographies/Archimedes.html (2705 words)

	Archimedes and the Computation of Pi
		Archimedes (approximately 285---212 B.C.) was the most famous ancient Greek mathematician and inventor.
		He invented the Screw of Archimedes, a device to lift water, and played a major role in the defense of Syracuse against a Roman Siege, inventing many war machines that were so effective that they long delayed the final sacking of the city.
		Eratosthenes of Cyrene was a contemporary of Archimedes (Eratosthenes was about ten years younger), and the two corresponded on various matters.
	www.math.utah.edu /~alfeld/Archimedes/Archimedes.html (783 words)

	The Scientists: Archimedes. (Site not responding. Last check: )
		Archimedes will ever be known because of his two contributions to science.
		The Archimedean principle: "a body plunged in a fluid loses as much weight as is equal to the weight of an equal volume of the fluid." Archimedes' Screw: which is an instrument for raising water, formed by winding a tube into the form of a screw around a long cylinder.
		Incidently, it was Archimedes who said that if he were given a lever long enough and a point to stand upon he could move the world.
	www.blupete.com /Literature/Biographies/Science/Archimedes.htm (128 words)

	[No title]
		Rather than trying to measure the polygons one at a time, Archimedes uses a theorem of Euclid to develop a numerical procedure for calculating the perimeter of a circumscribing polygon of 2n sides, once the perimeter of the polygon of n sides is known.
		The truly unique aspect of Archimedes' procedure is that he has eliminated the geometry and reduced it to a completely arithmetical procedure, something that probably would have horrified Plato but was actually common practice in Eastern cultures, particularly among the Chinese scholars.
		Archimedes adopted Euclid's uniform and rigorously logical form: axioms followed by theorems and their proofs.
	www.lycos.com /info/archimedes--mechanical-theorems.html (426 words)

	Archimedes
		The brilliant Greek scientist Archimedes was born in Syracuse, Sicily in 287 B.C. His best-known invention was a machine for raising water, called Archimedes' screw.
		Archimedes' screw, for example, was used for raising water from ditches and emptying flooded ships.
		Archimedes' war machines held off Roman attacks for three years, but in 212 B.C. Syracuse was captured, and Archimedes was killed by a Roman soldier.
	www.angelfire.com /ca5/ancientgreecescience/archimedes (112 words)

	Submerged Archimedes Screw Heat Engine Air Compressor - Renewable Energy Design
		An Archimedes' screw is a well-known device for pumping water.
		The screw described in Roman times was constructed from a cylindrical wooden shaft, flexible flat wooden sheets, and a wooden outer casing bound with iron bands.
		The water, air and heat pipes in the outer screw are cold while the water, air and heat pipes in the inner screw are hot.
	renewableenergy.wikia.com /wiki/Submerged_Archimedes_Screw_Heat_Engine_Air_Compressor (2464 words)

	Archimedes' screw - Wikipedia, the free encyclopedia
		Archimedes' screw, Archimedean screw, or screwpump, is a machine historically used for transferring water from a low-lying body of water into irrigation ditches.
		The slope of the outside of the screw's helical blades with respect to its sides is 2.
		This requires that the slope the screw makes with respect to a horizontal line be less than 2 (an angle of 63.435°) in order for the buckets or pockets of water to form.
	en.wikipedia.org /wiki/Archimedes'_screw (701 words)

	Archimedes (Site not responding. Last check: )
		Although Archimedes was a mathematician, he is known for his strategic role in ancient war and the development of military techniques.
		The name Archimedes is connected to a pumping device now known as a Archimedes Screw, which he may have seen in operation in Egypt.
		Archimedes performed numerous geometric proofs using the rigid geometric formalism outlined by Euclid, excelling especially at computing areas and volumes using the method of exhaustion.
	idcs0100.lib.iup.edu /AncGreece/archimedes.htm (578 words)

	Archimede's Screw
		Archimedes' Screw has been used to lift water to higher levels since ancient times.
		Archimedes (287-212 B.C.) is the traditional inventor of this device, which was originally used for irrigation in the Nile delta and for pumping out ships.
		I have seen a nineteenth century Archimedes' screw still at work pumping water in a windmill at Schermerhoorn in the province of North Holland in the Netherlands.
	physics.kenyon.edu /EarlyApparatus/Fluids/Archimedes_Screw/Archimedes_Screw.html (341 words)

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