1. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

2. Who invented Floppy disk ?

Answer: IBM in 1970

3. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

4. Who invented Nylon ?

Answer:

Wallace Carothers

5. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

6. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

7. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945