From Wikipedia:

In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two mediums (e.g. the atmosphere or ocean) which has the restoring force of gravity or buoyancy.

that was incredibly awesome, i dont understand it all: http://en.wikipedia.org/wiki/Gravity_wave but it looks awesome

Damn that looks sweet

I had no previous knowledge of this effect. Thank you Silvercord. Very cool

Crap, I downvoted. I meant to do up.

But the token ant downvote is a badge of honour!

It's all right. I thought, maybe, that rolling clouds frightened ants or something. Either that or you had completely gone off your rocker.

Sc

speachless!

ant, here this will help:

<----------Left side, UP!........Right side, DOWN! ----------->

Ant's far too used to downvoting. If he doesn't downvote, he'll go into withdrawal.

my understanding is that when very high clouds are all wavy and banded their pattern is a remnants of this sort of effect.

oh, and you guy's are just jealous. ant totally owns. we are but ants to him, ironically.

nice explanation
http://www.theweatherprediction.com/habyhints/64/

That is so awesome. You can see it from airplanes often when over the midwest....

Awesome, yet another 1st-ranked Science sift! And a very cool phenomenon to boot.

Keep 'em coming!

"Crap, I downvoted. I meant to do up."

Has downvoting just become a reflex Sir Ant?

If this somehow brings mankind a step closer to hoverboards, HUZZAH!

It's awesome to see people actually appreciate science around here... YouTube is mostly cretins.

That's not a gravity wave, it's a fluid wave, just like a wave in water except it's in air. A gravity wave is a wave in spacetime.

in spacetime?

*promote

Re-promoting this video to the front page as a VideoSift Classic. Originally published on Wednesday 9th May 2007 (promotion called by gold star member mlx)

Welly, welly, well! Viddy well my droogies. It's the Gravity Wave! Thanks MLX!!

*length=33

The duration of this video has been updated from unknown to 33 secs - length declared by Norsuelefantti.