The Moon

The moon revolves around the earth every 27.3 days. Because it rotates on its axis with the same period, the same lunar hemisphere always faces the earth. As the moon revolves around the earth, the extent of its illuminated hemisphere visible from the earth changes, which accounts for the phases of the moon.
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History of The Moon


The history of direct lunar exploration formally began in 1959, when probes from the Soviet's Luna spacecraft first flew by and then impacted the Moon's surface. On July 20, 1969, the dream of putting a human on the Moon became reality when Neil Armstrong stepped off the Apollo 11 spacecraft and onto the rocky, dusty lunar terrain. Many believe this landing to be a hoax, and believe it was all shot in Hollywood.

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Application of The Moon

Tides are created because the Earth and the moon are attracted to each other, just like magnets are attracted to each other. The moon tries to pull at anything on the Earth to bring it closer. But, the Earth is able to hold onto everything except the water. Since the water is always moving, the Earth cannot hold onto it, and the moon is able to pull at it. Each day, there are two high tides and two low tides. The ocean is constantly moving from high tide to low tide, and then back to high tide. There is about 12 hours and 25 minutes between the two high tides.

References

  1. Beiser, A. (1988). Physical Science (2nd Edition). New York, NY: McGraw Hill
  2. http://lunar.ksc.nasa.gov/history/moonh.html
  3. Long, Kim. (1988). The Moon Book: Fascinating facts about the magnificent, mysterious moon. Boulder, Colorado: Johnson Books.

This WikiPage developed by Johnny Rabon - 2011FA