1. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

2. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

3. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

4. Who invented Helicopter ?

Answer:

Igor Sikorsky

5. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

6. Who invented Java Language ?

Answer:

James Gosling

7. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.