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《Lesson 3 Scientific Breakthroughs》精品PPT课件优质课下载
Warm-up
Warm-up
Isaac Newton
He was a British physicist .
He acted as president of the Royal Society for 24 years.
He proved the Theory of Gravity to be true.
Warm-up
He was a British inventor.
His invention was considered the last straw of the First Industry Revolution.
He invented an advanced steam engine.
James Walt
Warm-up
He was an American inventor.
Alexander?Graham Bell
He was born in Scotland and settled in America.
He was the inventor of telephone.
Do you know the major discoveries of the scientists in the pictures?
His greatest discovery is the creation of his famous Theory of Relativity.
Albert Einstein was considered one of the greatest scientists of the 20th century.
Albert Einstein
Edwin Hubble was an American astronomer. His most important discovery was the expanding universe.
Edwin Hubble
Hubble space telescope
Alexander Fleming, a Scottish biologist,
discovered Penicillin.