1. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

2. Who invented Safety razor ?

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

3. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

4. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

5. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

6. Who invented Printing Press ?

Answer:

Johannes Gutenberg

7. Who invented paper ?

Answer:

Cai Lun