January 23, 2019 07:22 pm PST
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/ZvCBjCvnNaY/this-video-shows-how-long-it-t.html
This video shows how long it takes for light to travel from Earth to Mars and back again
At this scale, light moves at a snail's pace.
From the YouTube description: "This is the distance between Earth, the Moon and Mars with the correct distances but with Earth, Moon and Mars 20 times bigger (so you can see them!)." Read the rest
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/ZvCBjCvnNaY/this-video-shows-how-long-it-t.html
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