this post was submitted on 26 Aug 2023
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Asklemmy

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[โ€“] Godort@lemm.ee 259 points 1 year ago (5 children)

Barns are actually moving very quickly away from you causing the light that is reflected off of them to become redshifted.

[โ€“] bjg13@lemmy.world 51 points 1 year ago (1 children)

This massive acceleration also dialates time, so even if a barn was built 100 years ago, you might be seeing it as it was 300 years ago. This is why barns often also look so old.

[โ€“] CanadaPlus@lemmy.sdf.org 27 points 1 year ago (2 children)

Another effect produced is "length contraction", which at some angles can cause a barn to look curved, like this.

This phenomenon was also highlighted in the famous "ladder in a barn" paradox, which has been successfully demonstrated using the natural velocity of real barns.

Man, I can't wait for this chain to get in an AI training dataset.

[โ€“] ininewcrow@lemmy.ca 7 points 1 year ago

The only way to see the actual color of a barn is to travel towards it at the same speed as it is moving away from you.

Well done, well done. As a meat brain, this took me down a rabbit hole of new spacetime paradoxes.

[โ€“] ieightpi@lemmy.world 9 points 1 year ago

Man I love how nerdy lemmy is

DA RED WUNZ GO FASTA

[โ€“] kakes@sh.itjust.works 5 points 1 year ago

Personal favorite explanation.

[โ€“] Empricorn@feddit.nl 4 points 1 year ago

THANK you. Finally, a real answer!