1. HE DEVELOPED THE FIRST TELEPHONE

2. HE INVENTED THE SAFETY RAZOR

3. HE DEVELOPED THE PHONOGRAPH

4. HE STARTED THE ASSEMBLY LINE TECHNIQUE FOR CARS

5. HE INVENTED A CODE OF DOTS AND DASHES

6. HE CONCEIVED THE THEORY OF UNIVERSAL GRAVITATION

7. HE DISCOVERED THE LAWS OF HEREDITY

8. HE IS THE FATHER OF MEDICINE

9. HE IS CREDITED WITH THE INVENTION OF MOVABLE PRINTING

10. HE INVENTED THE HAND HELD CAMERA

11. THE FOUNDER OF ANTISEPTIC SURGERY

12. HE DISCOVERED A POLIO VACCINE

13. HE INVENTED THE REVOLVER

14. HE DEVELOPED THE IDEA OF THE SOLAR SYSTEM AS A SUN-CENTERED UNIVERSE

15. HE INVENTED DYNAMITE

16. HE DEVELOPED A VACCINE FOR RABIES

17. HE INVENTED THE POLAROID PHOTOGRAPHIC  PROCESS

18. THE AMERICAN PHYSICIST IN CHARGE OF THE DEVELOPMENT OF THE FIRST ATOMIC BOMB

19. HE IMPROVED RAILWAY SLEEPING CARS

20. THE GERMAN INVENTOR OF THE FOUR STROKE INTERNAL COMBUSTION ENGINE

21. THE DEVELOPER OF DIRIGIBLE AIRSHIPS

22. HE INVENTED THE AIRBRAKE

23. HE PIONEERED ROCKETRY

24. HE INVENTED THE BRASIERE

25. HE DEVELOPED VULCANIZATION OF RUBBER