1. Who invented "Physiology"?
Albercht Von Haller
2. Who invented "Pistol (Revolver)"?
Samuel Colt
3. Who invented "Plutonium"?
Glenn T. Seaborg, Edwin McMillan, Joseph W. Kennedy, and Arthur Wahl
4. Who invented "Pneumonia"?
Maurice Hillman
5. Who invented "Polio Vaccine (oral)"?
Jonas Salk
6. Who invented "Polonium"?
Marie Curie
7. Who invented "Portland Cement"?
Joseph Aspdin
8. Who discovered "Potassium"?
Humphry Davy
9. Who invented "Powerloom"?
E Cartwright
10. Who invented "Printing Press"?
Johann Gutenberg
11. Who discovered "Proton"?
Goldstein
12. Who invented "Rabies Vaccine"?
Louis Pasteur
13. Who invented "Radar"?
A. H. Taylor and Leo C. Young
14. Who invented "Radium"?
Marie Curie and Pierre Curie
15. Who discovered "Radon"?
Sir William Ramsay and R. Whytlaw-Gray
16. Who invented "Reflecting Telescope"?
Isaac Newton
17. Who invented "Refrigerator"?
Alexander Twining & James Harrison
18. Who invented "Rocket"?
Robert Goddard
19. Who invented "Rotavirus"?
Paul Offit
20. Who invented "Rubber Tire"?
J.B. Dunlop