Science Memes

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don't listen to big gravity!!!!! (mander.xyz)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 22 points 4 months ago* (last edited 4 months ago) (1 children)

Physics teacher: "The electrical force that repels the bottom of your foot from the surface of the earth is greater than the gravitational attraction between the entire earth and yourself".

Me: 😲

Edit: I guess it's more correct to say "equal to", rather than "greater" since you're static.

[–] [email protected] 2 points 4 months ago (1 children)

How can they be true?

[–] [email protected] 12 points 4 months ago

If it weren't true you would be experiencing a net acceleration due to the imbalance in the forces acting on you.

What's really interesting is figuring out WHY mechanistically it's true. I had to rethink the whole thing this morning, because it really is pretty nuts how much weaker gravity is than the electrostatic force.