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tlyudacris: kcjo: Aerogel, also know as frozen smoke, is the world’s lowest density solid, clocking in at 96% air. If you hold a small piece in your hand, it’s practically impossible to either see or feel, but if you poke it, it’s like styrofoam.
tags: awesome,science,
from: https://psychopathicprincess.tumblr.com/post/22584890728
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