- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
re: Hubble data: Universe "weirdly" expanding faster than expected.
Posted on 5/21/22 at 8:21 am to UndercoverBryologist
Posted on 5/21/22 at 8:21 am to UndercoverBryologist
they said "universe" but meant "BigBobbyStoreys Ex Wife"
Posted on 5/21/22 at 8:23 am to UndercoverBryologist
These same people can’t see when an astroid is heading our way until it’s in our solar system but you are going to tell me they know how to calculate how fast the universe is expanding? Okay.
When we can accurately predict the weather for tomorrow maybe I’ll listen.
When we can accurately predict the weather for tomorrow maybe I’ll listen.
Posted on 5/21/22 at 9:11 am to KLSU
quote:
These same people can’t see when an astroid is heading our way until it’s in our solar system but you are going to tell me they know how to calculate how fast the universe is expanding? Okay.
It’s actually fairly straightforward, depending on the precision of your instruments.
The level of red-shift (Doppler Effect) of a galaxy is proportional to the rate of recession from the observer (which in this case, can be generalized to the entire Milky Way galaxy).
You first do as Edwin Hubble did and observe that, in general, the entire universe is red-shifted (key phrase “in general”). And then you notice that the farther a galaxy is away, the more it’s red-shifted. Then you take what we we know about light and apply an equation to get a generalized figure for the rate of acceleration.
quote:
When we can accurately predict the weather for tomorrow maybe I’ll listen.
We can already basically predict the weather for tomorrow with a high degree of certainty:It’s the weather a week, a month, a year, a decade, etc. that becomes hard to predict because the weather is a complex, chaotic system.
It’s not that the universe itself isn’t also chaotic. But if you rewound the motion of the universe back far enough, when everything is sufficiently close to one another compared to today, the universe would collapse under gravity. That we can be reasonably sure of. It is just inevitable. So, in essence, there has to be a sort of “anti-gravity” force acting on the universe to keep it expanding.
Posted on 5/21/22 at 10:12 am to UndercoverBryologist
How does this work from a flat earth perspective?
Posted on 5/21/22 at 10:47 am to UndercoverBryologist
My waist is expanding at increasing rate, too. I have always been one with the universe (and Oreos).
Posted on 5/21/22 at 10:48 am to theunknownknight
quote:
How does this work from a flat earth perspective?
The universe is only expanding upwards.
Posted on 5/21/22 at 11:41 am to UndercoverBryologist
What's it expanding into?
Posted on 5/21/22 at 12:16 pm to UndercoverBryologist
quote:
the universe will asymptote to a non-zero positive temperature value at maximum entropy and no further work being possible
TWSS
Posted on 5/21/22 at 2:40 pm to Bwmdx
quote:No. That would happen if there is an explosion in space. The big bang and the expansion we see is an "explosion" of space.
If the universe is expanding, doesn’t that imply it all must be diverging from a single point?
quote:If you try to find the center point of expansion, it turns out that no matter where you look that point appears to be the center. That's how we know that space itself is expanding.
Have we found that point?
Posted on 5/21/22 at 2:52 pm to UndercoverBryologist
quote:
Hubble data: Universe "weirdly" expanding faster than expected.
damn, I guess climate change is real after all
Posted on 5/21/22 at 3:41 pm to UndercoverBryologist
quote:
67.5 kilometers per second per megaparsec
How does that compare with the Falcon's Kessel Run?
Popular
Back to top
Follow TigerDroppings for LSU Football News