1. Who invented Printing Press ?

Answer:

Johannes Gutenberg

2. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

3. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

4. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

5. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

6. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

7. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912