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The Moon!

  1. Jul 3, 2010 #1
    Hy. I want to find a lot of info about the moon. I've read about gravity. I want to know about the frequencies, radiations and whatever there is, and how them interact with earth.
    Where should i search?
  2. jcsd
  3. Jul 3, 2010 #2
    Im not sure what you mean by "I want to know about the frequencies, radiations and whatever there is, and how them interact with earth", but i do know some intresting facts about the moon.

    • The Moon is slowly moving away from the earth

      The Moon contains alot of Helium 3, which may one day be used as an energy source

      Both the Moon and the Earth are reminents of the collision between Earth and the small planet (Theia), before then there was no moon

      The Moon orbit is slowly stopping the rotation of the Earth

      The gravitational pull of the Earth on the moon can occasionally cause Moon quakes

    Hope this helps :)
  4. Jul 4, 2010 #3
    But is there any sort of radiation reflected from the sun by the moon ?
  5. Jul 4, 2010 #4
    Nothing special, the moon is exposed to cosmic rays and solar flares but the effect of either these on the moon doesn't really cause any electromagnetic disruption or effect of any kind on the earth.

    To be blunt the moon is basically just a big rock. Planets like Mercury contain Iron and could possibly cause electromagnetic disruption, the moon reflects normal light from the Sun onto the Earth but other than that i can't really think of anything.

    I have found an article about problems man may one day face on the moon due to radiation. http://science.nasa.gov/science-news/science-at-nasa/2005/08sep_radioactivemoon/
  6. Jul 4, 2010 #5

    Of course the answer to question is "moonshine" - is this a trick question?

    Your instincts that interesting things happen because of all that solar energy smacking the lunar surface is on the money IMO. The moon is not quite as boring as people think.

    In recent years there has been evidence that some of the dust on the surface is lifted up several meters and then falls back down every time the sun sets. We do not have good measurements of this, and I don't think we even understand what is going on.
  7. Jul 4, 2010 #6
  8. Jul 4, 2010 #7


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    This is a theory, not by any means completely accepted.
  9. Jul 5, 2010 #8
    What about the interaction of moon and cosmic rays / earth and cosmic rays / moon-earth and cosmic rays.

    And another question is that the moon interact with earth's core during the moon cicles.
    Last edited: Jul 5, 2010
  10. Jul 9, 2010 #9
    I've read about the speed of the Moon’s motion around the zodiac (increasing gradually and then decreasing gradually in the course of a month).
    What you know ?
  11. Jul 25, 2010 #10
    Or where i can find this info ?
  12. Jul 25, 2010 #11


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    Not sure exactly what you're referring to, but

    The Moon's orbit, like any elliptical orbit, has an apogee, where it moves slowest, and a perigee, where it moves fastest. So yes, its speed across the sky changes over the course of a month.
  13. Jul 25, 2010 #12
    Where i can see this?
  14. Jul 25, 2010 #13


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    In addition, the line of apsides (the line joining perigee and apogee) undergoes precession with a period of 8.85 years. So what part of the zodiac the Moon is in when it is moving at its fastest changes over the course of 8.85 yrs.
  15. Jul 25, 2010 #14

    Vanadium 50

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    Up in the sky, where it always is.

    Are you reading these replies, or just asking questions for the sake of asking questions? It's very hard to figure out what you mean, as your messages don't seem to follow the responses you are getting. Maybe you might take the time to think about what you are asking and to then write it as clearly as you can.
  16. Jul 26, 2010 #15
    as moon has lower gravity than earth it is easier to lift object up.(u are a superman)
    however lifting it and moving with it or pushing is not easy csz then inertia comes into effect as gravity acts towards the center not side by side(back to normal)lol
    think i should improve my writing.
  17. Aug 15, 2010 #16
    Can be replicated the energy of the moon ?
  18. Aug 15, 2010 #17


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    Enough. Thread locked.
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