1. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903

2. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

3. Who invented Radiocarbon ?

Answer:

Willard Libby

4. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

5. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

6. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

7. Who invented colour television ?

Answer:

Peter Carl Goldmark