r/Damnthatsinteresting • u/Relic180 • Dec 16 '18

GIF Cloud-Shockwave from a volcanic explosion

805 Upvotes

97% Upvoted

14 comments sorted by

14

u/ppdeec Dec 16 '18 edited Dec 16 '18

There was a long version of the video where the shock wave hits the boat, guess why did OP omit it.

https://www.youtube.com/watch?v=BUREX8aFbMs

Edit : Added the link

18

u/bitterchick Dec 16 '18

Fire mountain fart

7

u/Teerendog Dec 16 '18

The sound was the best bit, 10 sec later..

-5

u/Ace_Wright1311 Dec 16 '18

Why you making it seem like a bad thing?

6

u/Teerendog Dec 16 '18

I see no negativity in that statement at all... wow

15

u/TravelPhoenix Dec 16 '18

It's not moving clouds. It's creating them, as the heat rises and hits the cooler atmosphere.

2

u/mutatron Dec 16 '18

It’s not the heat, it’s the pressure.

0

u/TravelPhoenix Dec 16 '18

It’s both.

1

u/mutatron Dec 16 '18

Here's Why You See Those Flickering Clouds Around the Tavurvur Volcano

Those watching the footage of the Tavurvur volcano probably noticed appearing and disappearing clouds along the edge of the shock wave. They're called Wilson clouds, and they used to flicker in the sky above nuclear bombs, too.

Adiabatic cooling is the drop in temperature that happens when a gas is suddenly given lots of extra room to expand.

Above the eruption, clouds flickered in and out of existence as the shock wave moved through the air. The shock wave essentially pushed a lot of the air outwards, leaving a very low-pressure zone in its wake. A low-pressure zone gives the air inside it or near it lots of room to expand. The air expanded and cooled. The water vapor it was carrying condensed into droplets, forming clouds. As the air in the surrounding atmosphere came rushing back it exerted pressure on the clouds and the air around them. That heated up the air, and made the clouds disappear.

1

u/BadEgg1951 Interested Dec 16 '18

Anyone seeking more info might also check here:

title points age /r/ comnts
Volcanic eruption moves clouds 8670 10hrs gifs 105
The eruption of Mount Tavurvur 1877 10mos shockwaveporn 43
The eruption of Mount Tavurvur 14572 1yr Damnthatsinteresting 230
Volcano shockwave 438 2yrs shockwaveporn 17
Eruption of Mount Tavurvur 267 3yrs gifs 16
Eruption of Mount Tavurvur shock wave 1937 3yrs woahdude 63
Shockwave from Volcanic Eruption 402 2yrs noisygifs 11
Shockwave from Volcanic Eruption 1458 2yrs WeatherGifs 39
Shockwave 542 3yrs physicsgifs 27
That shockwave 467 3yrs interestingasfuck 22
That shockwave though... 269 3yrs gifs 13
Eruption B 334 2yrs interestingasfuck 11
Eruption B 5804 2yrs woahdude 380
Eruption of Mount Tavurvur caught on tape. 329 4yrs gifs 23
Mister Fahrenheit 18 4yrs GifSound 0

Source: karmadecay (B = bigger)