this post was submitted on 07 Oct 2024
855 points (99.1% liked)

Science Memes

10905 readers
2356 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] essteeyou@lemmy.world 271 points 1 month ago (3 children)

Polaris is 45-67 million years old.

The oldest total-group chondrichthyans, known as acanthodians or "spiny sharks", appeared during the Early Silurian, around 439 million years ago.

It's not even close.

[–] ChicoSuave@lemmy.world 72 points 1 month ago (2 children)

Dinosaurs died off 65 MYA. Dinosaurs were most likely gone before Polaris formed.

[–] i_stole_ur_taco@lemmy.ca 67 points 1 month ago (1 children)

They probably died off because they couldn’t use Polaris for navigation!

[–] mkwt@lemmy.world 25 points 1 month ago (1 children)

Polaris goes in and out of North Star status on the 26,000 year precession cycle. So for the duration of humanity (let's say 100,000 years), there have been decent chunks of time where it's not in use.

[–] sorrybookbroke@sh.itjust.works 13 points 1 month ago (2 children)

You gotta rest up man, that's a pretty big job for one star

[–] FuglyDuck@lemmy.world 11 points 1 month ago

Can you imagine having to give directions to a bunch of illiterate primates? Ugg. I’d have quite after the first thousand years.

[–] Tar_alcaran@sh.itjust.works 2 points 1 month ago

They trade off. There are other stars that make for good pole star candidates

[–] aeronmelon@lemmy.world 13 points 1 month ago (2 children)

I’m now sad that dinosaurs could never look up and see Polaris.

[–] ZeffSyde@lemmy.world 6 points 1 month ago

Eh, they got to see the thousands of other stars that are now obscured by light/atmospheric pollution.

[–] stewie3128@lemmygrad.ml 4 points 1 month ago

Most nights even I can barely see Polaris.

[–] toynbee@lemmy.world 29 points 1 month ago

I came here to question whether that claim is true, saw your post, and thought something like "well, that settles that." Then I scrolled down and saw neatchee's (great username) post and now my whole world is uncertain.

[–] LustyArgonianMana@lemmy.world 3 points 1 month ago

Appalachian mountains are even older