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Inventions And Discoveries Essay

  • Submitted by: mominschool
  • on November 11, 2011
  • Category: History
  • Length: 1,151 words

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Below is an essay on "Inventions And Discoveries" from Anti Essays, your source for research papers, essays, and term paper examples.

Inventions and Discoveries
      Inventions and discoveries are what made the world what it is today. Without the invention of the telescope and microscope the world would be vastly different. We would not know the world past the naked eye.
      With this paper I am going to discuss two very important discoveries; a discovery with the telescope and a discovery with the microscope. These discoveries help mold the way we view space and help us understand the makeup of human body and see how cells move and reproduce.
      A very significant discovery with the telescope is the discovery of the stars in the Universe. More stars than the 40,000 that can be seen with the naked eye. These stars never would have been seen or known of without the telescope. Before the telescope very little was known about stars; what are their composition, are they all different or the same, and why are some brighter than others? All of these were able to be answered with the assistance of the telescope.
      The star called the brown dwarf, discovered named by Jill Tater in 1975 was originally called black dwarfs. These stars also known as failed stars are balls of warm gas that have a mass less than that necessary to maintain hydrogen burning nuclear fusion reactions in its core. The most recent brown dwarf stars were spotted March 2011. Both are about the same size of Jupiter, but the smaller one which is further away has a surface temperature of about 200 degrees Fahrenheit, which is the same as a freshly boiled cup of tea, making this the coldest star in the night sky (New World Encyclopedia, 2008). This star was located just 75 light-years from Earth. The brighter companion had originally obscured the brown dwarf but with new more powerful telescopes, astronomers discovered the star, which is approximately five times dimmer and 130 degrees cooler than the previous brown dwarf record.
      These two stars were discovered by the W.M. Keck Observatory’s very large telescope...

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