1. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

2. Who invented Floppy disk ?

Answer: IBM in 1970

3. Who invented colour television ?

Answer:

Peter Carl Goldmark

4. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

5. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

6. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

7. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712