Gravity Wave

Submitted by: buddy 10 years ago in Science

Time lapse video of clouds shows wave formation over time.
There are 58 comments:
Male 2,788
DUN DUN DUN DUN.
0
Reply
Male 1,404
Props to Offlinedumaspere!
0
Reply
Male 404
damn that`s awesome
It would be cooler though if that was real time
0
Reply
Male 102
serfis, simple harmonic motion occurs when the acceleration of a body is always towards its natural "rest" position, and when the acceleration is directly proportional to the distance it is away from this position so a = k(-x) where a is a constant. The relationship crops up so often everywhere in nature that they started using the term SHM. (I am assuming that whatever the relationship between height and density of air, the amplitude of cloud oscillation is small enough compared to the height above the ground, that the relationship is approximately linear over that region, giving SHM.)
0
Reply
Female 2,552
That`s B-E-A-uuuuutiful.
0
Reply
Female 239
As amazing as this is, I`d be paranoid if I saw the clouds moving like that in real time. Especially after that one day where the clouds rolled in and started pouring in seconds when I was golfing. There was this big concentration of swirling, dark grey clouds when I was driving home, reminiscent of horror movies of sorts where this one place turns out to be a native burial ground. Anyways, still awesome: 4.
0
Reply
Male 31
dumaspere`s explanation is prolly mostly right. I just don`t know if simple harmonic motion applies to clouds, I`ve always known it to apply to springs, but wasn`t sure about the sky.
0
Reply
Male 1
It looks like we`re living in an ocean because we are essentially living in an ocean, of air.
0
Reply
Male 163
wow mexican wave clouds
0
Reply
Male 604
God`s bowling arena is all swollen up...

That`s what He gets for spilling watter on hardwood.

0
Reply
Female 120
now i must learn how to harness its power for....um....good.....or something....like that...
0
Reply
Female 1,211
Woo, dizziness.
0
Reply
Male 577
yea it is like we r living in the ocean :P
0
Reply
Male 577
thats awesome
0
Reply
Male 16
What causes that? After a while, it looked like everything was under water.
0
Reply
Female 359
Clouds can do amazing stuff, watch the cirrus long enough and you can see faces, and animals, just like in the fluffy cumulus. (Except cirrus is cooler.)

(P.S. I think those were Cumulonimbus, because those are the ones that carry water (I believe, or maybe it was nimbostratus (been a while since I studied a cloud chart)) and you can see rain dripping off of the top of the screen.)

0
Reply
Male 7
gravity wave is the correct name for it. the definition of a gravity wave is a vertically oscillating wave in which gravity is the restoring force. The name is a bit misleading, they should actually be referred to as buoyancy waves, because as stated earlier, buoyancy due to temperature differences in the restoring force.
p.s. - anyone in the 13-17 age range most likely doesnt know enough about physics to be complaining about other peoples understanding of it.
0
Reply
Female 1,398
that was pretty cool. the clouds over my house blanket the whole sky sometimes, but i never see them do that.
0
Reply
Female 1,470
WOW thats sooo cool, mother nature rox my sox
0
Reply
Female 1,025
wtf? dad was that you?


i love nature.

0
Reply
Male 810
over such a short time?
amazing!
i saw something like that before, 2 years ago, there was a very high breeze and the clouds surface for miles and miles was rippled.. it was amazing... it looked like one of those soundproofed walls.
i haven`t seen a cloud in three days though
gotta love summer :)
0
Reply
Male 102
0
Reply
Female 963
That was cool.
0
Reply
Male 1,364
cool, kinda looks like your under water
0
Reply
Female 2,695
and [email protected]`s comment.
0
Reply
Female 2,695
wow, that was amazing.
0
Reply
Male 604
Photoshopped.
0
Reply
Male 730
It just looks un-natural and bizare, and brings to mind an obvious wave. the sky moving would bring to mind gravity fluxuations. He didn`t actually think it was gravity waves you arm chair physicists. if you can understand that maybe you can understand an offhand discription.
0
Reply
Male 102
patchouly, m`eh. i guess thats just what theyre called. they must actually be pretty common, given the cause and the fact they`ve got their own name (lol...?)
0
Reply
Male 737
That was BADASS
0
Reply
Male 34
Wow
I reckon it has something to do with mars...
0
Reply
Female 5
Ok now that was worth watching.
0
Reply
Male 2,506
5487sckanut
0
Reply
Female 688
That was so beautiful. I don`t think I`ve ever seen clouds that thick, other than rain clouds.
0
Reply
Male 901
what dumaspere said.
0
Reply
Female 1,395
mmm, i could watch cloud all day. Actual ones tho not pixelated.
0
Reply
Male 363
wind. not gravity.
0
Reply
Male 181
that was really cool
0
Reply
Male 26
nice. very nice
0
Reply
Male 4,745
You beat me to it dumaspere!

I don`t know why they said it was Gravity waves B-| ...

0
Reply
Female 1,596
Oooooo ahhhh, nice!
0
Reply
Female 306
preeeeeetty coooool.
0
Reply
Female 340
wow, that sort of put things into perspective. I felt really small watching this.
0
Reply
Male 9
makes me think about wat is it like to live like a fish
0
Reply
Male 838
They should make one of those videos of an Old Guy`s penis getting erected with no Viagra. Time would pass and no action!
0
Reply
Female 10
Pretty :D
It seems like the clouds are ocean waves :3
0
Reply
Male 98
This effect is due to ...

YOUR MOMMA CAUSE SHE SO DAMN FAT!

Clouds create pretty cool effect though

0
Reply
Male 102
OK, the air higher up in the atmosphere is warmer and less dense. When a packet of air is forced to rise above its natural level (dictated by its temperature), say by wind blowing it over a mountain, it will surrounded by air that`s less dense than it, and will want to sink just like a rock that`s denser than the surrounding water. So it accelerates downwards, but doesn`t stop moving once it reaches the right level again. It goes further down (overshoot) and gets forced back up by the more dense air. This is called simple harmonic motion, and if the wind is blowing steadily you end up with a pretty sine wave like this. Science rules :) More info here.
0
Reply
Male 2,216
Incredible.
0
Reply
Male 270
Impressive.
0
Reply
Male 109
pretty cool. Happened pretty fast too, considering it was 1 min per sec.
0
Reply
Male 242
Nature is F**cking amazing.
0
Reply
Male 609
wtf... please explain?
0
Reply
Male 1,265
I`m tellin` ya, air is a liquid. We live in teh ocean!!1
0
Reply
Female 201
Whoa! What was that?!
0
Reply
Male 602
That was extermely cool!
0
Reply
Male 429
Has to be the moons fault. HAS to be!
0
Reply
Male 10,115
Link: Gravity Wave [Rate Link] - Time lapse video of clouds shows wave formation over time.
0
Reply