1. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

2. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

3. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

4. Who invented Safety razor ?

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

5. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

6. Who invented Piano ?

Answer:

Bartolomeo Cristofori

7. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832