1. Who invented "Bicycle"?
Kirkpatrick MacMillan
2. Who invented "Bifocal Lens"?
Benjamin Franklin
3. Who invented "Biochemistry"?
Jan Baptista Van Helmont
4. Who invented "Blood groups"?
Landsteiner
5. Who invented "Blood Transfusion"?
Jean-Baptiste Denys
6. Who invented "Boron"?
Humphry Davy
7. Who invented "Braille Printing"?
Louis Braille
8. Who invented "Calcium"?
Humphry Davy
9. Who invented "Calculating Machine"?
Gottfried Wilhelm Leibniz
10. Who invented "Carbon Dating"?
W.F. Libby
11. Who invented "Carburettor"?
Gottlieb Daimler
12. Who invented "Cardiac Pacemaker"?
Hyman
13. Who invented "Cash Register"?
James J. Ritty
14. Who invented "Cathode Ray Tube"?
Sir William Crookes
15. Who invented "Chicken Pox"?
Maurice Hillman
16. Who invented "Chloroform"?
Simpson and Harrison
17. Who invented "Chloroform as anaesthetic"?
James Simpson
18. Who invented "Circulation of blood"?
William Harvey
19. Who invented "DDT (Dichloro-Diphenyl-Trichloroethane)"?
Paul Muller
20. Who invented "Diesel Engine"?
Rudolf Diesel