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The Big 100
The Big 100

Scientists have transformed the way we think and live throughout the centuries. What are the most important scientific discoveries of all time? In no particular order, we present the top 100 in eight different categories.

Astronomy
  Astronomy
Explore the universe.
Biology
  Biology
Explore the world around you.
Chemistry
  Chemistry
Explore the world under a microscopic.
Earth Science
  Earth Science
Explore the Earth under your feet.
Evolution
  Evolution
Explore the past.
Genetics
  Genetics
Explore what makes you, you.
Medicine
  Medicine
Explore developments in health.
Physics
  Physics
Explore how stuff works.

Pictures: PhotoDisc/Getty Images | Associated Press | Corbis | DCI |

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