The dried out husks of posts I have already promoted!
Visually similar to the "Powers of Ten" vid, this movie opening sequence gives us an idea of how far radio waves take to travel through space. The farther out in the solar system we go, the older the tv/radio... continue reading
posted by firefly
1 decade 7 years 10 months 1 week ago • 4,685 views • 3:12Not yet a member? No problem!
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