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选修7《Lesson 3 Scientific Breakthroughs》新课标PPT课件优质课下载
The change in communication:
Neil Alden Armstrong was the first person to set foot on the Moon.
This is my personal one small step, it was a great step of mankind.
The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.
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
Hubble space telescope
Alexander Fleming, a Scottish biochemist,
discovered Penicillin.
Alexander Fleming
The World First Computer
The designer of ENIAC, the first commercial computer made in the United States.
John William Mauchly and J. Presper Eckert
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?