31
submitted 23 hours ago by cm0002@piefed.social to c/science@mander.xyz
top 7 comments
sorted by: hot top controversial new old
[-] frongt@lemmy.zip 24 points 23 hours ago

Until you read the explanation, which the article omits. The phenomenon is that an object moving at 0.999c appears rotated, where the leading face appears to be oriented away from the viewer, and the trailing face appears oriented towards the viewer.

By Penrose: "the light from the trailing part reaches the observer from behind the sphere, which it can do since the sphere is continuously moving out of its way".

https://en.wikipedia.org/wiki/Terrell_rotation

That article has nice diagrams too.

[-] Rhaedas@fedia.io 5 points 20 hours ago

I think I get it, but it still hurts the brain. I think many scifi stories may be right and if we develop some type of warp/hyperspace/whatever, a human looking into whatever it looks like would go mad.

[-] frongt@lemmy.zip 8 points 20 hours ago

It would just look stretched and/or rotated.

Basically, you can see the back side of the object, because the object moves out of the way of its own light.

[-] UnderpantsWeevil@lemmy.world 7 points 22 hours ago

Least click-bait popularmechanics headline.

[-] pglpm@lemmy.ca 1 points 15 hours ago* (last edited 2 hours ago)

Similar cool and scientifically correct simulations:

https://www.spacetimetravel.org/

[-] homesweethomeMrL@lemmy.world 2 points 21 hours ago

Gosh i sure don’t want that.

[-] realitista@lemmus.org 2 points 20 hours ago

Gee mister, please don't break my brain.

this post was submitted on 07 Oct 2025
31 points (81.6% liked)

Science

5422 readers
177 users here now

General discussions about "science" itself

Be sure to also check out these other Fediverse science communities:

https://lemmy.ml/c/science

https://beehaw.org/c/science

founded 3 years ago
MODERATORS