Cataracts Facts. 1  Cataracts are changes in clarity of the natural lens inside the eye that gradually degrade visual quality. The natural lens sits behind the colored part of the eye (iris) in the area of the pupil, and cannot be directly seen with the naked eye unless it becomes extremely cloudy.
Hershey and Chase. Alfred Hershey and Martha Chase did an Experiment in 1952 that was called the Hershey-Chase Experiment. This experiment set out to determine what composed the genetic material of a bacteriophage. A bacteriophage is a virus that infects a bacterium.
1909 founded the Hershey Industrial School, a school for orphan boys. 1918 transferred ownership in the Hershey Chocolate Company to the Hershey Trust 2004 Milton Hershey's mansion serves as the headquarters for Hershey Foods Corporation.909 founded the Hershey Industrial School, a school for orphan boys. 1918 transferred ownership in the Hershey Chocolate Company to the Hershey Trust 2004 Milton Hershey's mansion serves as the headquarters for Hershey Foods Corporation.