1. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

2. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

3. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

4. Who invented Radiocarbon ?

Answer:

Willard Libby

5. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

6. Who invented Safety razor ?

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

7. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902