1. Who invented Printing Press ?

Answer:

Johannes Gutenberg

2. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

3. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

4. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

5. Who invented HIV ?

Answer:

6. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

7. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765