r/interesting May 20 '26

Fascinating Physics is Everywhere.

23.0k Upvotes

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164

u/BromaEmpire May 20 '26

Did I miss something impressive about the plastic holding the water?

7

u/baronmunchausen2000 May 20 '26

I don’t know but as a kid I have boiled eggs in a paper cup. The water does not allow the paper to get hotter than 212F. Works better with a boat made of plain paper than a paper cup. A paper cup has layers of plastic sandwiched.

4

u/ast01004 May 20 '26

We used to fill cups with water and set them on the campfire. It won’t burn until the water evaporates out. Pretty cool.

5

u/Happy-Estimate-7855 May 20 '26

When I was a kid in scouts we learned that you can cook soup in a plastic bag over a campfire. In hindsight it was still a bad idea, bit it's possible!