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.
1. There were some celebrities at his birthday party last night. 2. There will be many students and teachers in the club tomorrow. 3. Will there be a new underground station in this district in a year? 4. There is an invisible magnetic field between the poles of the magnet. 5. There was a meeting at the University yesterday. 6. There are some pictures on the wall. 7. There was somebody in the corridor when I entered. 8. There is an opposition to the party in power. 9. There were a lot of guests at his wedding yesterday. 10. There are a lot of sights in Kiev. 11. When he explained everything, there was a long pause. 12. Is there any milk left?
