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选修7《Lesson 3 Scientific Breakthroughs》公开课PPT课件优质课下载
Tell me some of famous pioneers of science of the 20th century and their scientific breakthroughs
His greatest discovery is the creation of his famous Theory of Relativity.
Albert Einstein
Albert Einstein was considered the greatest scientist of the 20th century.
Edwin Hubble was an American astronomer. His most important discovery was the expanding universe.
Edwin Hubble
Telelscope
Hubble space telescope
Alexander Fleming, a Scottish biochemist,
discovered Penicillin.
Alexander Fleming
Penicillin
The designer of ENIAC, the first commercial computer made in the United States.
John William Mauchly and J. Presper Eckert
The World First Computer
Percy Spencer, an American engineer and inventor, discovered microwaves.
Percy Spencer
1.The equation E=mc2
2.Penicillin
3.The first computer
4.Other galaxies
5. Microwave
Try to match the discoveries
with how they were discovered?
a)Scientists worked