Re: Not cool if your afraid of heights.
That one was a time lapsed one. heres one on real time, still only takes 3 minutes to see the whole earth. LOL
http://youtube.com/watch?v=4qWWgvzWH...elated&search=
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Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge. This is significantly different from the common usage of the word "theory", which implies that something is a conjecture, hypothesis, or guess.
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