1. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

2. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

3. Who invented Transformer ?

Answer:

Ottó Bláthy

4. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

5. Who invented Nylon ?

Answer:

Wallace Carothers

6. Who invented DNA Structure ?

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

7. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504