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Why Is It Dark At Night?

Hits: 7376 | Rating: (2.8) | Category: Science | Added by: fancylad
Jump to: Bottom    Last Post
adamslily
Female, 13-17, Southern US
 29 Posts
Thursday, October 04, 2012 12:58:12 AM
beautiful.

Vimto
Male, 40-49, Europe
 2593 Posts
Wednesday, October 03, 2012 12:45:19 AM
Nothing I didn't know, but very nicely explained for those that didn't.

OldOllie
Male, 60-69, Midwest US
 14524 Posts
Tuesday, October 02, 2012 11:32:52 AM
I like the way their model puts the earth at the center of the universe. Copernicus would be so proud of how far we have come.

Actually, the earth IS the center of the OBSERVABLE Universe, which is the only meaningful way to reference the Universe. More precisely, YOU are always at the center of the observable Universe from your point of view. No matter where you go in space, you will always see yourself as being at the center of the observable Universe. The limit of transparency, i.e., the source of the ~2.7-deg. background radiation, will always appear to be the same distance, ~14 bil LY, from you in any direction, and it's moving away from you at about ~0.99998 c as the Universe expands.

An-egg
Male, 30-39, Eastern US
 870 Posts
Tuesday, October 02, 2012 10:48:29 AM
I like the way their model puts the earth at the center of the universe. Copernicus would be so proud of how far we have come.

Nickel2
Male, 50-59, Europe
 4644 Posts
Tuesday, October 02, 2012 9:48:06 AM
Mmm, fascinating Captain.

patchgrabber
Male, 30-39, Canada
 5718 Posts
Tuesday, October 02, 2012 7:37:43 AM
Olbers' paradox.

mac_24_seven
Male, 18-29, Southern US
 87 Posts
Tuesday, October 02, 2012 7:32:34 AM
I love how douches are like "Didn't everybody know this already? Like, duh."

Don't assume just because you know something that everybody else should know it.


ferdyfred
Male, 40-49, Europe
 11356 Posts
Tuesday, October 02, 2012 12:27:45 AM
Didnt folk know this??

drawman61
Male, 50-59, Europe
 6102 Posts
Tuesday, October 02, 2012 12:12:53 AM
My brain hurts

SnoopyBG
Male, 18-29, Europe
 648 Posts
Monday, October 01, 2012 11:53:37 PM
God did it!

LemonCurry
Male, 40-49, Asia
 1029 Posts
Monday, October 01, 2012 10:56:07 PM
wow, that was actually very informative.

... and i love that cute little guy standing on planet earth!

davymid
Male, 30-39, Europe
 12078 Posts
Monday, October 01, 2012 10:43:14 PM
Sad that this is news to many people.

Angilion
Male, 40-49, Europe
 11548 Posts
Monday, October 01, 2012 9:40:58 PM
TruTenrMan:

You might like these channels too:

Sixty Symbols

Nottingham Science

OldOllie
Male, 60-69, Midwest US
 14524 Posts
Monday, October 01, 2012 9:12:57 PM
...and interstellar dust has nothing to do with it. Nope. Not a thing.

ScottSerious
Male, 18-29, Western US
 5329 Posts
Monday, October 01, 2012 7:20:45 PM
too complicated. God turns off the sun.

erikthevikin
Male, 30-39, Canada
 722 Posts
Monday, October 01, 2012 5:26:42 PM
Cool, I love this stuff.

TruTenrMan
Male, 30-39, Southern US
 2565 Posts
Monday, October 01, 2012 5:25:13 PM
One of my favorite YouTube channels:
/user/minutephysics
/user/vihart
/user/AsapSCIENCE
/user/numberphile
/user/spacelab
/user/Vsauce
/user/Vsauce2
/user/WhatYouOughtToKnow

Quackor
Male, 18-29, S. America
 2864 Posts
Monday, October 01, 2012 5:22:39 PM
huh, this is full of bullhsit
ionization of the universe?

fancylad
Male, 30-39, Western US
 2523 Posts
Monday, October 01, 2012 5:09:31 PM
Link: Why Is It Dark At Night? [Rate Link] - Have you ever wondered why you look up and see a dark sky at night?


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