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Compressed Gas: Helium
Beginning of essay
Helium was discovered by a French astronomer named Pierre-Julius-Cesar
Janssen. The French astronomer got evidence for the element during solar
eclipse in 1868. He detected new lines in the solar spectrum. Later in
1895 Sir William Ramsay discovered it in clevite, a uranium mineral.
Although ....
Middle of essay
....lack of oxygen. This is to inform you that inhaling
helium can cause more than a funny voice. It can cause serious injuries.
Helium is not flammable, but it is sold as a compressed gas which can
become a hazard if handled improperly. Helium is an element. After it is
released into our atmosphere, it is so light that it floats off into outer
space. Once current supplies trapped underground are exhausted, we'll all
be out of luck. The only way to "manufacture" helium is by the
radioactiv.... |
| Number of words: 918 |
Approximate pages: 4 |
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