Discoverers

1. Roald Amundsen - Born: July 16, 1872
Norwegian explorer who discovered the south pole; first man to sail through the Northwest passage

2. Sir Alexander Fleming - Born: August 6, 1870
Nobel Prize-winning Scottish bacteriologist who discovered penicillin

3. Giovanni Domenico Cassini - Born: June 8, 1625
Italain astronomer who discovered four satellites of Saturn

4. Francis Crick - Born: June 8, 1916
English scientist who shares a Nobel Prize for the discovery of the structure of DNA

5. Charles Fabry - Born: June 11, 1867
French scientist who discovered the ozone layer in the upper atmosphere

6. Julius Plucker - Born: June 16, 1801
German physicist, discoverer of the magnetic properties of cathode rays

7. William Lassell - Born: June 18, 1799
English astronomer who discovered satellites of Uranus and Neptune

8.Henry Cavendish - Born: October 10, 1731
English physicist and chemist who discovered hydrogen and was the first to measure the density of Earth

9. Anton von Leeuwenhoek - Born: October 24, 1632
Dutch scientist who discovered the existence of bacteria

10. James Cook - Born: October 27, 1728
English explorer who discovered the Sandwich Islands

11. Daniel Rutherford - Born: November 3, 1749
Scottish discoverer of Nitrogen

12. Ernest Rutherford - Born: August 30, 1871
New Zealand-born English physicist who won the Nobel Prize in chemistry in 1908 for discovering the atomic nucleus

13. James Alfred Van Allen - Born: September 7, 1914
American physicist who discovered and named the two radiation belts surrounding Earth

14. Walter Reed - Born: September 13, 1851
US Army doctor who discovered a cure for yellow fever

15. Baron Axel Cronstedt - Born: December 23, 1722
Swedish scientist who discovered the element nickel

16. Sir Isaac Newton - Born: December 25, 1642
English mathematician who discovered the binomeial theorem, the method of fluxions, and the law of gravitation

17. Louis Pasteur - Born: December 27, 1822
French scientist who discovered that most diseases are caused by germs and who developed the pasteurizition process

18. Henri Dutrochet - Born: November 14, 1776
French botanist who discovered the process of omosis

19. Sir William Herschel - Born: November 15, 1738
English astronomer who discovered Uranus and infrared radiation

20. Johannes Fabricius - Born: January 8, 1587
Dutch astronomer who discovered sunspots

21. Christiaan Huygens - Born: April 14, 1629
Dutch astronomer who discovered the saturn's rings

22. Jan Swammerdam - Born: February 12, 1637
Dutch scientist who discovered red blood cells

23. John Sutter - Born: February 15, 1803
Early California settler at whose mill gold was discovered in 1848

24. Marshall Hall - Born: February 18, 1790
English physiologist who discovered the reflexes

25. Pierre Jules Cesar Janssen - Born: February 22, 1838
French astronomer who discovered of helium in the sun

26. Giovanni Schiaporelli - Born: March 4, 1835
Italiam astronomer who discovered the "canals" of Mars

27. David Fabricius Essen _ Born: March 9, 1564
German astronomer who discovered variable stars

28. Wilhelm Konrad Rontgen - Born: March 27, 1845
German physicist who discovered X-Rays

29. William Harvey - Born: April 1, 1578
English physcian who discovered the circulation of the blood

30. Antoine Becquerel - Born: December 15, 1852
French physicist who discovered radioactivity

31. Johann Wilhelm Ritter - Born: December 16, 1776
German scientist who discovered ultraviolet light

32. Sir J.J Thomson - Born: December 18, 1856
Novel Prize-winning English physicist who discovered the electron

Source: World History