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2010-01-10T20:45:46+01:00
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2010-01-10T20:57:29+01:00
1William Herschel, a musician and amateur astronomer,constructed a telescope and looked for comets.In 1781 he found one, observed it and decided it couldn't be a comet because of the circularity of its orbit.It was Uranus, an unkown planet.This discovery let him become a full- time astronomer.


2Alexander Fleming researched bacteria. He left a bacterial colony and went on holiday.when he returned, it was covered in mould which killed the bacteria.Soon he extracted penicillin, the first antibiotic, from the mould.