this post was submitted on 24 Jul 2024
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Science Memes

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How did gravity worked on the Death Star? (feddit.org)
submitted 3 months ago by [email protected] to c/[email protected]
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cross-posted from: https://feddit.org/post/1104168

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[–] [email protected] 14 points 3 months ago (2 children)

One of my favorite science facts: Because of how the strength of gravity diminishes as you get further away and stronger as you get closer, when you approach to within arms length of another person (approx 1m) the gravitational attraction between the two masses of your bodies can exceed the gravitational attraction between your body and the sun at any given time.

[–] [email protected] 4 points 3 months ago (2 children)

When the inverse square law and weak gravitational forces meet

[–] [email protected] 3 points 3 months ago

Where I end and you begin

[–] [email protected] 2 points 3 months ago

Another fun property of the inverse square law is that an infinite sheet of mass produces a gravitational field that is equally strong no matter how far you are from it.

It applies to any form of flux, like sound amplitude or light intensity.

This is why when you’re sitting on top of Mount Sanitas, you can hear traffic sounds at seemingly full volume. It’s just all the traffic of Boulder, which is roughly like an infinite sheet below you.

This is despite being unable to hear any given car more than a couple blocks away.

It’s also why if Superman flies over manhattan at night, he’s lit from underneath with an amount of light similar to someone who’s 10 feet from a skyscraper.

[–] [email protected] 2 points 3 months ago

Yeah, but no one can escape the gravitational field of your mom.

(Sorry, couldn't resist, as I half expected your comment to end with a "your mom" joke)