Unit16Unit16Scientists at workScientists at workCan you name some important discoveries and inventions
Ancient Greece static electricity1745 Leyden jar 1880 Electrical bulb (Edison)1923 Television1943 Computer1989 World-wide web1993 Human embryos cloned1997 Dolly, the sheep, the first cloned animalA list of some important Discoveries & InventionsStatic electricityLeyden jar ( 莱顿瓶 ) EdisonCan you say something about Benjamin Franklin Benjamin Franklin 1706-1790Do you know
He was an American statesman (政治家) : He was a president of the USA
He helped to write the Declaration of Independence
He was born on January 17, in Boston and was the tenth child and youngest son of the family
He was a scientist and inventor: He invented the lightning rod
He was a writer: He wrote his own Autobiography