Archimedes. Why in the first place was the ancient Greek scientist? First of all, because he is one of the greatest mathematicians of all times, close he came to the calculation of the number of "PI". Today all students and students of the daily study and enjoy the discoveries of the Greek. Also Archimedes was famous for the invention of many useful machines. Among these are the siege guns, and mirrors, поджигающие sails on the Roman ships by focusing sunlight. Archimedes made the first theorist of mechanics. For example, he presented the complete theory of the lever, applying it in practice. Also, scientists have developed a Archimedes screw (screw), with the help of which вычерпывается water and the present day. The primacy of the inventor of merit - all of it was opened more than two thousand years ago, when there were no computers, no technology available today, the inventors. Archimedes, perhaps, he studied in the libraries of Alexandria, but most of his knowledge was acquired independently.
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Объяснение:
ou have shopped in that market.
I have sung different kinds of songs, especially modern.
I have listened to melodious songs.
He has traveled around the world.
They have played cricket in that field.
The poet has written romantic poems.
The lyricist has written realistic songs.
Have you listened to realistic songs?
I have not quarreled with you.
Have you been to this place before?
I have helped him to do the task.
My mom has cooked beef with cabbage.
I have watched the cricket match on television.