who said eureka and what had they just found out?

Answer 1

Alexander Graham Bell had just invented the telephone and he said "Eureka, I've found it!"

Answer 2

Archimedes.
He found out how to test whether the king had been swindled by the jeweller.
It was Archimedes Principle, which is about the displacement of water by a body. He was in the bath, so they say and ran outside without putting on his clothes, but that bit is probably myth.
It is to do with specific gravity(relative density).
He could tell whether the goldsmith had taken some of the gold and replaced it with an equal weight of some other metal.

Answer 3

Archimedes (c.290/280 BC - 212/211 BC)

Archimedes was born and mainly lived in Syracuse on the eastern coast of Sicily. He is believed to have been close to Hieron II, King of Syracuse, who tried to encourage Archimedes to use his extraordinary talents for practical purposes. The King had commissioned a gold wreath that he wished to consecrate to the gods. When the wreath was delivered, it weighed the correct amount for which he had been charged. However, he was concerned that some of the gold had been replaced by an equal weight of a metal of lesser value, such as silver or lead. Because of its consecrated nature, dissection or analysis was impossible.

Archimedes was presumably pondering this quandary while visiting the public baths in Syracuse. As he sank into the bath, water overflowed: the further he sank, the more water poured out. Upon realising that the amount of water displaced was a direct measure of his volume, legend has it that he leapt from the bath and ran, naked and dripping, to the King, repeatedly shouting 'Eureka' (I have found it). He knew that if he immersed the crown in water and measured the overflow, he could find its volume. Whatever its shape, if the crown were pure gold it should have an equal volume to an equal weight of pure gold, whatever shape that had. When Archimedes measured the volume of the crown it was greater than the volume of a kilo of gold, and Hieron saw that he had been cheated.

He then gave Archimedes the challenge of launching the Syracusia, an enormous ship weighing 4 200 tons that had been built as a gift for Ptolemy, King of Egypt and which was so heavy that all previous launch attempts had failed. According to Plutarch, Archimedes used a polypaston, or block and tackle, with a large number of sheaves. This effectively created many ropes, with the weight of the ship divided between them. Consequently each rope, including the final rope that was being pulled, had only to support a fraction of the weight: a force of only a fraction of the weight was sufficient to lift the weight. Archimedes realised that with a perfect lever there was no theoretical limit to how large a load could be shifted with any given weight.

Apart from an account of his elegant planetariums, he wrote down nothing other than mathematics. This work included an early approximation of the value for pi, the calculation of relative volumes of spheres and cylinders, and an original system of notation (with a base-value of 100 million) to express enormous numbers. He was also an outstanding astronomer, and invented 'Archimedes' Screw', a device for raising water.

When the Romans invaded Syracuse in 214 BC, Archimedes invented 'engines of war' to defend the city, including cranes to drop rocks, claws to lift ships from the water, and machines to fire missiles. Most famous were the burning mirrors, with which Archimedes is supposed to have set ships on fire. This was theoretically straightforward: a parabolic mirror could be used to focus the rays of the sun onto one point, which would then reach temperatures sufficient to set alight anything at its focal point. The construction was more complicated, and Archimedes possibly approximated a parabolic mirror with a large number of small mirrors: the more mirrors, the closer the approximation.

The siege of Syracuse was, however, to cost him his life. He was reportedly absorbed in his mathematics when captured. Instructions that he be kept alive were ignored when he ordered the Roman soldier to stay away from his work, and he was killed immediately.

Well, if that doesn't explain it, I'm bolloxed with telling you any more about his life.

Steve

Answer 4

I have said it several times...and there is a Eureka College in Illinois...and I found it...it is rather nice. Check it out. They were number one in the Newsweek college issue for the price and value for a small midwest college. Oh, Eureka...also in California...but I haven't found it yet.

Answer 5

How about this?

eu·re·ka (y-rk) KEY

INTERJECTION:

Used to express triumph upon finding or discovering something.

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ETYMOLOGY:
Greek heurka, I have found (it) (supposedly exclaimed by Archimedes upon discovering how to measure the volume of an irregular solid and thereby determine the purity of a gold object), first person sing. perfect of heuriskein, to find.

add to this the whole California thing, about the first miner to discover gold (James Marshall)and start the "California Gold rush", when he found gold at Sutter's Mill, screamed, "Eureka" and started the "49'ers" gold rush". -- punch in Sutters Mill at Wikipedia and have some fun from there!

Hence, "The San Francisco 49'ers"!

Answer 6

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Answer 7

Archimedes just realized how to tell the volume of an irregular shaped object. Specifically to tell whether or not a item was made of solid gold without damaging it.

Answer 8

Archemedies had just worked out how to measure the volume of irregular shapes, (by measuring the dispacement of water by the object).

Answer 9

Archimedes - he had just discovered displacement of water when he got in the bath.

Answer 10

I think it was Archimedes, and it was to do with displacement. He got in a bath and noticed that he displaced his own volume in spilled water. (I reckon the bath was full to the brim)