I was just outside with my dog and saw that the moon looks very very small like it is further from earth. It is the size of a pea at arms length, or about a quarter of the size it should be. Check it out and post what you see.
I was just outside with my dog and saw that the moon looks very very small like it is further from earth. It is the size of a pea at arms length, or about a quarter of the size it should be. Check it out and post what you see.
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It took me awhile (I have so many saved articles, and none are tagged):
"The Moon's orbit is expanding over time as it slows down (the Earth is also slowing down as it loses energy). For example, a billion years ago, the Moon was much closer to the Earth (roughly 200,000 kilometers) and took only 20 days to orbit the Earth. Also, one Earth 'day' was about 18 hours long (instead of our 24 hour day). The tides on Earth were also much stronger since the moon was closer to the Earth."
Source: http://www.enchantedlearning.com/subjects/astronomy/moon/
and here are a few others I've saved (about the moon) that might be of interest, or have some pertinence:
http://www.fourmilab.ch/earthview/moon_ap_per.html
http://www.moonconnection.com/apogee_perigee.phtml
http://cseligman.com/text/moons/earthmoongravity.htm
http://en.wikipedia.org/wiki/Center_of_mass
BTW, I don't bookmark articles, or their sites, because it bogs and clogs my bookmark searches. Instead, I email article links to myself, into a special email account I set up strictly for this purpose. Does anyone have a better way of saving articles without bookmarking them? It's tough looking through emails to find things, even though my server account has a search tool.