# Archimedes

287?–212 b.c, Greek mathematician, physicist, and inventor: discovered the principles of specific gravity and of the lever.

Contemporary *Examples*

Beethoven took long walks, Jung said, and Archimedes, hot baths.

World Science Festival: Can We Really Live to 1,000? Casey Schwartz June 4, 2011

Historical *Examples*

Archimedes defines a straight line as the shortest distance between two points.

Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 6 Various

Archimedes had propounded the theory of the lever, and the principles of hydrostatics.

Fragments of science, V. 1-2 John Tyndall

Archimedes once said: “Give me where I may stand, and I will move the world.”

Remarks Bill Nye

Publicity is the lever of which Archimedes dreamed; and I confess that I tremble.

The Orchard of Tears Sax Rohmer

From his fall is dated the three years’ siege of Marcellus, and the death of Archimedes at the end of it.

The Every Day Book of History and Chronology Joel Munsell

I don’t think that you’ll never get to be an Archimedes and cry out ‘Eureka!’

True to His Home Hezekiah Butterworth

For a slate or blackboard, he used the beach, as did Archimedes of the olden time.

Adrift on the Pacific Edward S. Ellis

Archimedes said he could lift the world with a lever if he had a fulcrum.

A Forest Hearth: A Romance of Indiana in the Thirties Charles Major

The original sketch of Cicero at the Tomb of Archimedes, for ditto.

The Life, Studies, And Works Of Benjamin West, Esq. John Galt

**noun**

?287–212 bc, Greek mathematician and physicist of Syracuse, noted for his work in geometry, hydrostatics, and mechanics

**noun**

a walled plain in the NE quadrant of the moon, about 80 km in diameter

Archimedes

(är’kə-mē’dēz)

Greek mathematician, engineer, and inventor. He made numerous mathematical discoveries, including the ratio of the radius of a circle to its circumference as well as formulas for the areas and volumes of various geometric figures. Archimedes created the science of mechanics, devising the first general theory of levers and finding methods for determining the center of gravity of a variety of bodies. He also invented an early type of pump called the Archimedian screw.

Archimedes [(ahr-kuh-mee-deez)]

An ancient Greek scientist, mathematician, and inventor. He is best known for his investigations of buoyancy.

Note: Archimedes is said to have shouted “Eureka!” (“I have found it!”) as he stepped into his bath and realized that the volume of an object can be measured by determining how much water it displaces. He used this insight to measure the volume of a crown supposedly made of pure gold. After measuring the crown’s volume and weighing it, he could calculate its density. He then could prove that the crown was not dense enough to be pure gold.

Note: According to the “principle of Archimedes,” when an object placed in water is weighed, and its weight in the water is compared to its weight out of the water, it seems to lose a definite amount — an amount equal to the weight of the water it displaces. This principle holds not only for water, but also for gases, such as air. A boat floats, or a balloon rises, because it weighs less than the material it displaces. (See buoyancy.) Archimedes is also supposed to have said, with regard to levers and fulcrums, “Give me the place to stand, and a lever long enough, and I will move the Earth!”

computer

A family of microcomputers produced by Acorn Computers, Cambridge, UK. The Archimedes, launched in June 1987, was the first RISC based personal computer (predating Apple Computer’s Power Mac by some seven years). It uses the Advanced RISC Machine (ARM) processor and includes Acorn’s multitasking operating system and graphical user interface, RISC OS on ROM, along with an interpreter for Acorn’s enhanced BASIC, BASIC V.

The Archimedes was designed as the successor to Acorn’s sucessful BBC Microcomputer series and includes some backward compatibility and a 6502 emulator. Several utilities are included free on disk (later in ROM) such as a text editor, paint and draw programs. Software emulators are also available for the IBM PC as well as add-on Intel processor cards.

There have been several series of Archimedes: A300, A400, A3000, A5000, A4000 and RISC PC.

Usenet FAQ (ftp://rtfm.mit.edu/pub/usenet/news.answers/acorn/). Archive site list (http://cs.vu.nl/~gerben/acorn/acorn-archives.txt). HENSA archive (ftp://micros.hensa.ac.uk/). Stuttgart archive (ftp://ftp.uni-stuttgart.de/pub/systems/acorn).

See also Crisis Software, Warm Silence Software.

(1998-04-03)

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