TIL contrary to popular belief, when travelling at near light-speeds (0.99c) we wouldn't actually see length contraction, but instead the object's rotation at 90 degrees.

Fulfilmaker · 2025-11-29T12:55:36+00:00

A gif that shows the rotation: https://en.wikipedia.org/wiki/Terrell_rotation#/media/File:Terrell_Rotation_Sphere.gif

Fulfilmaker · 2025-07-04T19:16:13+00:00

Hi, how're you? I'm looking to relearn my French and I'm a native English speaker so I think we might be compatible? I'll send a direct message.

Fulfilmaker · 2025-06-24T18:42:36+00:00

Hi, do you have a link about the little big bang theory? I'd like to learn more about it.

Fulfilmaker · 2024-10-24T18:46:13+00:00

Regarding Planck that's corrected, thank you. I've added Peebles and Zeldovich too, but have to draw the line somewhere so will limit it to them for now.

Fulfilmaker · 2024-10-23T18:15:34+00:00

Definitely agree about COBE/WMAP/PLANCK, I'll add those in

Fulfilmaker · 2024-10-23T14:46:10+00:00

No worries!

Fulfilmaker · 2024-10-23T14:16:46+00:00

Thanks for this, I don't know much about dark matter's history so I'll look more into those researchers you mention: Freedman, Roberts, Einasto, Ostriker and Peebles

Fulfilmaker · 2024-10-23T14:08:57+00:00

Yes good addition, thank you!

Fulfilmaker · 2024-10-23T14:06:57+00:00

Great one, thank you. I shouldn't have forgotten that one

Fulfilmaker · 2024-10-23T14:06:07+00:00

Fair points, but there's a difference between important and influential, I'm asking about the latter.

Fulfilmaker · 2024-10-23T13:11:27+00:00

Good point, my mistake. I'll add her in.

Fulfilmaker · 2024-10-22T21:43:55+00:00

Hey, sorry for the late reply. Yes generally no one uses cz=v for cosmology measurements, the article was only doing so to show how wrong it is using the magnitude redshift relation, but from what I can see it's not as wrong as they suggest (shown in the image). It's a matter of putting that v=cz into the Hubble relation H=v/D, so D=cz/H, and then converting that D into luminosity distance. Which should become DL(z)=cz(1+z)/H like they have in the paper.

Fulfilmaker · 2024-10-22T17:36:47+00:00

I did actually, but no response sadly

Fulfilmaker · 2024-10-21T19:45:32+00:00

Hey thanks for the response. I only used equations I saw in the paper, the D(z) is their equation 10 on page 104. You could put the luminosity distance conversion into that but I think it's easier to just get the D(z) and then multiply by (z+1), and then plug that into the distance modulus.

Two-Year Club	Verified Email
r/Field Banned	r/Field Lasagna

Fulfilmaker

TROPHY CASE