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Follow me to Overview on PBS Terra! https://www.youtube.com/watch?v=hjez0W8SPXc
Glass is made of sand, which is a kind of rock. But glass is transparent, and rocks aren’t transparent. What’s up with that? Why is glass clear? And why can I sit on a chair? And why can we touch anything? Today we zoom down to the weird world of electron clouds and quantum touching to find the answers.
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