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Hello Children. I created this blog to enrich your science curriculum. Not only in class, I sincerely hope you will learn at your optimum level at home too. This blog will be an extension to all your topics you have learnt and will be in learning in class. If you have any questions, please do feel free to post them. Have fun !



Sunday, March 21, 2010

Cells


Robert Hooke (1635-1703)


In 1665, the English physicist Robert Hooke looked at a sliver of cork through a microscope lens and noticed some "pores" or "cells" in it. Robert Hooke believed the cells had served as containers for the "noble juices" or "fibrous threads" of the once-living cork tree. He thought these cells existed only in plants, since he and his scientific contemporaries had observed the structures only in plant material.
Robert Hooke wrote Micrographia, the first book describing observations made through a microscope. The drawing to the top left was created by Hooke. Hooke was the first person to use the word "cell" to identify microscopic structures when he was describing cork. Hooke also wrote
Hooke's Law -- a law of elasticity for solid bodies.


7 comments:

  1. 1665? That was a long time ago!

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  2. Fact: He lived 68 years. ??? How come most famous people in the past lived such short lives???

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  3. that was like 400 years ago!!!!!!

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  4. This comment has been removed by the author.

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  5. Y is it that people who lived like around in 1660 lived only for sooo short??

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