1. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

2. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

3. Who invented Transformer ?

Answer:

Ottó Bláthy

4. Who invented Safety razor ?

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

5. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

6. Who invented HIV ?

Answer:

7. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765