this post was submitted on 24 Feb 2024
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xkcd

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https://xkcd.com/2898

Alt text:

"Some people say light is waves, and some say it's particles, so I bet light is some in-between thing that's both wave and particle depending on how you look at it. Am I right?" "YES, BUT YOU SHOULDN'T BE!"

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[–] RememberTheApollo_ 19 points 10 months ago (2 children)

Wouldn’t the center of mass constantly be shifting by the planets’ varying positions in orbit?

[–] starman2112 26 points 10 months ago* (last edited 10 months ago) (1 children)

Yes, but it's mostly shifting because of Jupiter. It's just so dang heavy. Like, a couple times heavier than every other planet put together. I don't have the brain wattage to do the cool math right now, but a quick google search says that while the barycenter of the solar system does depend on all the planets, more often than not, it is outside the sun

[–] [email protected] 15 points 10 months ago* (last edited 10 months ago)

Easy reminder:

sun ~ 10^30 kg
jupiter ~ 10^27 kg
earth ~ 10^24 kg

so the ratio is always 1000:1

[–] [email protected] 8 points 10 months ago

relative to the center of the Milky Way, yes.

Sadly, the quantum foam has no gridlines.