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/sci/ - Science & Math

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2211654 No.2211654 [Reply] [Original]

Hey /sci/, I don't know shit about shit, but here's a thought experiment that you may find interesting:

Say I had a box, and let's not argue about how it works, but say I can put something in it, click a button, and the box suspends its contents in a vacuum and flips the charges of all its particles or whatever to turn it into antimatter (fast enough to not worry about annihilation or anything), and kept it suspended until I clicked the switch again, which would flip it back to conventional matter and drop it so I can safely take it back out of the box.

1.) What happens if I put my watch in at say 12:00, turn it on, leave it on til 6:00, then turn it off and take my watch out?

2.) What happens if I put a person in at 12:00 and let them out at 6:00 from their perspective?

3.) What happens if I turn it on at 12:00, then put a person in at 6:00 and simultaneously turn it off?

>> No.2211681
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2211681

shameless self-bump

>> No.2211703
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2211703

>> No.2211716
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2211716

Probably some crazy shit.

Pic related.

>> No.2211744

>>2211716
Yeah watching Primer too many times is what made me ask the question in the first place, but the more I think about it, the more it seems like if I put a person in at 12 and took them out at 6, they'd experience that six hours backwards somehow or another and come out 6 hours younger, and I'm not sure you could actually send someone back in time in scenario 3, even to say a parallel universe where they did come out when I turned it on in the first place. But then I barely have a grasp of physics at all, so I'd like /sci/'s honest take on it.

>> No.2211769

Nothing. The spin is opposite but in every other way it would be symmetrical.

>> No.2211777

>>2211744
Also in scenario 1 I think my watch would come out saying 6am if it's digital, not sure if it's mechanical. I'd guess 6pm since I'd assume springs and gears wouldn't run backwards, but digital, it'd work like there are positrons running through the circuit backwards, or maybe the watch wouldn't run right at all depending on how the components are actually put together.

>> No.2211798

>>2211769
Thanks, good answer and I'm inclined to agree with you. I guess the next logical use for this kind of machine would be to produce really energy-dense fuel then.

>> No.2211810

>>2211777
But the positrons would run in the same direction the electrons were, and would interact with everything in the same way an electron would if it were in a normal digital watch, as everything else is also switched.

I don't see how there would be any difference at all, assuming we are disregarding the small differences between particles and their antiparticles, and say they are exact opposites.

>> No.2211816

>>2211769
Chemistry and electromagnetism would work the same and forward in time?