3 ms·
OK so, that's how the air ripples work for heat... because of the density of the air. It makes me wonder, if you had a 10 inch globe of vacuum suspended in air
by cevn 6y ago
OK so, that's how the air ripples work for heat... because of the density of the air.
It makes me wonder, if you had a 10 inch globe of vacuum suspended in air, how different looking thru it would appear vs the air. It seems like you might be able to detect it via sight alone.
- FreeFull 6y agoYeah, it'd definitely be visible. I imagine it'd be like looking at an air bubble while underwater, in terms of refraction, except that air doesn't have surface tension so the boundary wouldn't look quite the same.
- dredmorbius 6y agoThat's what a visible shockwave from an explosion is. Light bending through sharp pressure discontinuities. https://i.redd.it/jbx7x4a66em21.jpg https://i.redd.it/jbx7x4a66em21.jpg https://i.ytimg.com/vi/_31RYF3p42E/maxresdefault.jpg https://i.ytimg.com/vi/_31RYF3p42E/maxresdefault.jpg http://waitbutwhy.com/wp-content/uploads/2014/10/explosion-in-super-slow-motion-to-see-the-destructive-power-of-the-shockwave-in-action..gif http://waitbutwhy.com/wp-content/uploads/2014/10/explosion-i... The vapour cloud which often forms occurs in saturated air as a partial vacuum forms behind the shockwave: https://frontlinevideos.com/wp-content/uploads/2018/05/massive-car-bomb_525595f2-05d3-488f-89bc-9a34aa5c41e0.jpg https://frontlinevideos.com/wp-content/uploads/2018/05/massi... https://media.tenor.com/images/a6572b4115f67f2aeea90c529d598741/tenor.gif https://media.tenor.com/images/a6572b4115f67f2aeea90c529d598...