Scale of the small...


For all those who were amazed at my picture of microscopic sand from yesterday:
let me (and the Khan Academy) further blow your mind.  So worth watching this 13-ish minute video.  Gets better and better as it goes on.  You will not look at your world the same, afterwards. ;)

https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/scale-earth-galaxy-tutorial/v/scale-of-the-small 
What do you think?

And thanks for recommending! :)

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