Archimedes is one of the most famous and great scientists who laid the foundation for modern science. Not all its opening are known to broad masses. Usually all remember only what was taught at school though other its experiments are not less interesting and useful to society.
Sovereign's crown
There is very known legend about a crown of the sovereign Giyeron, some historians call it a sacrificial wreath. It is authentically known that the sovereign asked Archimedes to calculate whether there was no his master jeweler a deceiver, whether it spent all gold for a crown or something stole to himself. For those times it was very difficult task and the great scientist needed a large number of time and good luck to solve this riddle. Once he took a bath. When he fell to it, he did not notice that it too full and some amount of water poured out from a bathtub then Archimedes cried "Eureka!". This word in translation from Greek means "found". The Greek philosopher and the truth found a solution, today each child knows that at immersion of any element in the vessel filled with water, the volume of the forced-out water will be equal to the volume of the shipped element.
Thanks to this guess Archimedes helped the Greek king to reveal the liar of the jeweler and to learn the truth. As the jeweler was given the whole ingot of gold, placed it in a full vessel with water, and later made the same experiment with a crown and it turned out that waters the different quantity poured out. Thanks to this opening as a result there will be the whole science - hydraulics. The same opening of Archimedes explains why a sphere with lighter gas, than air, can rise up why the steel sphere sinks, and the tree does not.
Other experiments of Archimedes
It is authentically known that Archimedes constructed the screw pump which very long time served on mines and in different devices for water pumping. This pump is called kokhlya. The principle of action is that place the screw with big blades in a hollow tube, the tube surely has to is under an inclination. Then by means of labor the screw is untwisted, and water on blades gets from the well upward. Strangely enough, the first, most primitive lever classified and Archimedes allocated too. To all it is known it the phrase is well-known: "Give me a point of support and I will shift the world". The levers created by the great scientist were the most productive for that time. A large number of its researches and achievements reached us from other philosophers. As well as many other scientists of that time, he infrequently wrote down the thoughts or its texts were lost in time. Allow to say that it had also other ideas military developments which, as is well-known from history, allowed to resist very long before Romans nevertheless managed to take Syracuse.