Archimedes of Syracuse used this quantity as the basis for a numeration system

Like the Archimedes, the RiscPC continued the practice of having the RISC OS operating system in a ROM module.

In The Sand Reckoner, Archimedes ( c. 287 – 212 BC ) devised a system of naming large numbers reaching up to

Archimedes only used his system up to 10 < sup > 64 </ sup >.

Its design was heavily influenced by work on the Modula-2 + language in use at SRC and at the Acorn Computers Research Center ( ARC, later ORC when Olivetti bought out Acorn ) at the time, which was the language in which the operating system for the DEC Firefly multiprocessor VAX workstation was written and in which the Acorn Compiler for Acorn Modula-2 Extended Language ( CAMEL ) at ARC for the ARX operating system project of ARM based Acorn Archimedes range of computers were written.

ARX was a Mach-like operating system written in Modula-2 + developed by Acorn Computers Ltd in the Acorn Research Centre ( ARC ) UK and later Olivetti Research Center and later on Software Technology Laboratory ( when Olivetti bought out Acorn ) at Palo Alto for their new ARM RISC processors based Archimedes computers range.

It was not finished in time to be fitted to the Acorn Archimedes range of computers, which shipped in 1987 with the Arthur operating system, derived from the earlier MOS operating system from Acorn's earlier 8-bit BBC Micro range.

# an arithmetical work ( see Pappus ) on a system both for expressing large numbers in language more everyday than that of Archimedes ' The Sand Reckoner and for multiplying these large numbers

First, Archimedes had to invent a system of naming large numbers.

An early implementation of the taskbar concept is seen in Acorn Computers 1987 Arthur operating system, for their Acorn Archimedes computer.

RISC iX was a Unix operating system designed to run on the Acorn Archimedes.

On the southeastern rim is the Palus Putredinis flooded plain, containing a system of rilles named the Rimae Archimedes that extend over 150 kilometers.

It became popular as a networking system for the BBC Micro and Archimedes computers.

In the southern part of this area is a rille system designated Rimae Archimedes.

* Desperate Measures ( previously Desperate Measures: Length, Area and Volume, ISBN 0-439-01370-4 ( measuring lines: units and accuracy, old measuring systems, the development of metric, the SI system and powers of ten, shapes, measuring areas and area formulas, weight, angles, measuring volume, Archimedes Principle, density, time and how the modern calendar developed.

The founder of the mathematical school was the celebrated Euclid ; among its scholars were Archimedes ; Apollonius of Perga, author of a treatise on Conic Sections ; Eratosthenes, to whom we owe the first measurement of the earth ; and Hipparchus, the founder of the epicyclical theory of the heavens, afterwards called the Ptolemaic system, from its most famous expositor, Claudius Ptolemy.

According to Archimedes in the Sandreckoner ( 2. 1 ), Aristarchus of Samos estimated the distance to the Sun to be 10, 000 times the Earth's radius ( the true value is about 23, 000 ).

Archimedes is generally considered to be the greatest mathematician of antiquity and one of the greatest of all time.

However, an episode of Richard Hammond's Engineering Connections relating to the Keck Observatory ( whose reflector glass is based on the Archimedes ' Mirror ) did successfully use a much smaller curved mirror to burn a wooden model, though not made of the same quality of materials as in the MythBusters effort.

Bryozoa are abundant in some regions ; the fenestellids including Fenestella, Polypora, and Archimedes, so named because it is in the shape of an Archimedean screw.

Archimedes used to demand just one firm and immovable point in order to shift the entire earth ; so I too can hope for great things if I manage to find just one thing, however slight, that is certain and unshakable.

This is effectively Archimedes ' principle as generated by centrifugal force as opposed to being generated by gravity.

The trammel of Archimedes or ellipsograph is a mechanical device that implements this principle.

Proclus introduces Euclid only briefly in his fifth-century Commentary on the Elements, as the author of Elements, that he was mentioned by Archimedes, and that when King Ptolemy asked if there was a shorter path to learning geometry than Euclid's Elements, " Euclid replied there is no royal road to geometry.

" Although the purported citation of Euclid by Archimedes has been judged to be an interpolation by later editors of his works, it is still believed that Euclid wrote his works before those of Archimedes.

* Archimedes said δῶς μοι πᾶ στῶ καὶ τὰν γᾶν κινάσω, which is sometimes translated as “ Give me a fixed point and I will move the world .”

Archimedes ( 287-212 BC ), of Syracuse, Sicily, when it was a Greek city-state, is often considered to be the greatest of the Greek mathematicians, and occasionally even named as one of the three greatest of all time ( along with Isaac Newton and Carl Friedrich Gauss ).

This is the law of the lever, which was proven by Archimedes using geometric reasoning.

It is not known whether Archimedes himself had a method of solution.

An ordered field K is the real number field if it satisfies the axiom of Archimedes and every Cauchy sequence of K converges within K.

An exception is the Archimedes palimpsest ( see below ).

* PBS NOVA: " The Archimedes Palimpsest " Click on " What is a Palimpsest?

This formula was first derived by Archimedes, who showed that the volume of a sphere is 2 / 3 that of a circumscribed cylinder.

This formula was first derived by Archimedes, based upon the fact that the projection to the lateral surface of a circumscribed cylinder ( i. e. the Lambert cylindrical equal-area projection ) is area-preserving.

The city is notable for its rich Greek history, culture, amphitheatres, architecture, and as the birthplace of the preeminent mathematician and engineer Archimedes.

It is believed to have fallen due to a peace party opening a small door in the wall to negotiate a peace, but the Romans charged through the door and took the city, killing Archimedes in the process.

Archimedes was possibly the first scientist that is known to have described nature with axioms ( or principles ) and then deduce new results from them.

The gravitational force acting on the hydrometer is simply its weight, mg. From the Archimedes buoyancy principle, the buoyancy force acting on the hydrometer is equal to the weight of liquid displaced.

However ancient sources contain several accounts of techniques that foreshadow the concepts of forensic science that is developed centuries later, such as the " Eureka " legend told of Archimedes ( 287 – 212 BC ).

Despite this, several features that would later be associated with BBC Master and Archimedes were first features of Electron expansion units, including ROM cartridge slots and the Advanced Disc Filing System — a hierarchical improvement to the BBC's original Disc Filing System.

The pop science TV program MythBusters attempted to model Archimedes ' feat by using mirrors to ignite a small wooden boat covered with tar, with only partial success — they found it too difficult to focus light from their hand-held mirrors onto a point small enough to ignite the boat.

Archimedes ' principle provided the next link: coins could now be easily tested for their fine weight of metal, and thus the value of a coin could be determined, even if it had been shaved, debased or otherwise tampered with ( see Numismatics ).

In a well-known but probably apocryphal tale, Archimedes was given the task of determining whether King Hiero's goldsmith was embezzling gold during the manufacture of a golden wreath dedicated to the gods and replacing it with another, cheaper alloy.

Archimedes knew that the irregularly shaped wreath could be crushed into a cube whose volume could be calculated easily and compared with the mass ; but the king did not approve of this.

These mathematical disciplines began in Antiquity with the Babylonians and with Hellenistic writers such as Archimedes and Ptolemy.

A leading scientist of classical antiquity, Archimedes also developed elaborate systems of pulleys to move large objects with a minimum of effort.

In mathematics, Archimedes used the method of exhaustion to calculate the area under the arc of a parabola with the summation of an infinite series, and gave a remarkably accurate approximation of pi.

Recognizing the profound implications and practicalities of the law of the lever, Archimedes has been famously attributed with the quotation " Give me a place to stand and with a lever I will move the whole world.

File: Archimedes naples statue. jpg | Archimedes ( c. 287 BC – c. 212 BC ): described buoyancy, developed formulae for the areas and volumes of spheres, cylinders, parabolas, worked extensively with levers, invented the Archimedes ' screw, developed siege engines for warfare to impede the Roman invasion of Syracuse.

The origin of the screw propeller starts with Archimedes, who used a screw to lift water for irrigation and bailing boats, so famously that it became known as Archimedes ' screw.

Trials with Smith's SS Archimedes, the first steam driven screw, led to the famous tug-of-war competition in 1845 between the screw-driven HMS Rattler and the paddle steamer HMS Alecto ; the former pulling the latter backward at 2. 5 knots ( 4. 6 km / h ).

The idea of a " simple machine " originated with the Greek philosopher Archimedes around the 3rd century BC, who studied the " Archimedean " simple machines: lever, pulley, and screw.

The concept of torque, also called moment or couple, originated with the studies of Archimedes on levers.

Archimedes saw weight as a quality opposed to buoyancy, with the conflict between the two determining if an object sinks or floats.

The newsgroup also follows various internet " mad scientists " and " crackpots " such as Archimedes Plutonium, Kurt Stocklmeir, and Time Cube inventor Gene Ray with a mixture of mockery and appreciation for the unintended humor they produce.

The account about Archimedes tells of how he invented a method for determining the volume of an object with an irregular shape.