Archimedes is one of the most famous and the great scientists, laid the foundation of modern science.
Not all his discoveries known to the masses.
Usually everyone remembers only what was taught in school, although his other experiments are no less interesting and useful to society.
There is a very well-known legend about the crownSovereign Hieron, some historians call it the sacrificial crown. It is known that the Emperor asked Archimedes to calculate, I was not whether his goldsmith liar if he spent all the gold on the crown or something kidnapped himself. In those days it was a very difficult task and the great scientist took a lot of time and luck to solve this riddle. One day he took a bath. When he fell into it, he did not notice that she was too full, and a certain amount of water poured out of the bath, after which Archimedes shouted "Eureka!". This word is translated from Greek means "found." The Greek philosopher and really found a solution, because today every child knows that immersion of any element in a vessel filled with water, the volume of water displaced is equal to the volume shipped item.
With this conjecture Archimedes helped GreekKing detect a liar and a jeweler to learn the truth. Since the jeweler gave a bar of gold, then he was placed in a pot full of water, and then conducted the same experiment with a crown and it turned out that the water poured out a different number. Thanks to this discovery as a result there is a whole science - hydraulics. The same opening Archimedes explains why the balloon with a lighter gas than the air may rise up why steel ball sinks, and no tree.
Other experiments of Archimedes
It is known that Archimedes inventedscrew pump, which is a very long time served in the mines and in different devices for pumping water. This pump is called Kohli. The principle of operation is that the hollow tube is placed in a screw with large blades, the tube is necessarily tilted. Then using manpower screw is unwound and the water on the blades of the wells flagged up.
Oddly enough, the first, most primitive leverHe classified and allocated too Archimedes. Everyone is familiar with his famous phrase: "Give me a fulcrum and I will move the world." Levers by the great scientist, were the most productive for that time. A large number of his research and achievements reached us from other philosophers. Like many other scientists of the time, he rarely wrote down his thoughts or his texts were lost in time.
Saying that he had other ideas, allow the development of the military, which, as we know from history, allowed to resist a very long time before the Romans still managed to take Syracuse.