1. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

2. Who invented Transformer ?

Answer:

Ottó Bláthy

3. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

4. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

5. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

6. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

7. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist