How deep do caustics go?   When a depthcharge explodes what does the explosion look like underwater?....Ive done searches for pictures with no luck...

Thanks

try  to look for textures at lemog

 

http://lemog.free.fr/  heres plenty of textures. to make caustics, find a nice  light in bryce, cone shaped (yellow cone icon),  click on the little e on the side of it and u'll end up in the light room:) and u can edit it there. need more help? im me, and i can send u some screenshots:)

"How deep do caustics go?"

Errm.. this is more a complex physics light problem than anything else.
It involves various variables, including (assuming in water):

• The surface of the water (how turbulent it is, which alters the angle of incidence as the light hits the surface).

• The density of the water (which alters both the amount of light absorbed as it travels through the water and the light's refraction) - salt water has a different density compared with fresh water (which is why it's easy to float in the Dead Sea - high density there).

• The clarity of the water (more silt, less light).

And probably a lot more stuff that I don't know about.

As for what a depth-charge looks like when exploding, I have no idea. But I'd hazard a (total) guess...

There'd be bubbles (expanding radially outwards from the source of the explosion), caused by heat of the explosion turning the surrounding water to steam (a gas, hence bubbles - just look into a boiling kettle to see what I mean). There'd also be radical changes to the local water densities (so radical changes to the caustics). And, of course, there'd be the usual effects of an explosion (very similar to an explosion in the air), of bits of the depth-charge flying (swimming??) away from the source.... (but more slowly, 'cos of the drag of the water, as compared to air)...

Oh, and of course, at the time of the explosion (and briefly thereafter), some bright areas (not flames, but centres of intense heat)...

Probably not much help, but the best I could do on this very clammy night in the UK...

Cheers,
Diolma

Best case (a guess) 100 feet - twice that at most. much after that it's dark

you might check out the Department of the Navy. Seems they'd be the ones with all the footage of things like that.

A big thank you to all of you..Tommorrow I have to go to town so I thought I'd stop by the local Navy office and see if they have any pictures...Again, thanks for takeing the time for such good answers...

just don't sign anything when you are in the navy office, or you may end up on a LONG vacation.

:b_tonguewink:

 

and seeing depth charges a lot closer up..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)

Just a 2nd thought-experiment about the results of an underwater explosion...

The bubbles created by the heat would tend to go upwards (being a gas, they're lighter than water), probably in a U-shape. And they'd get bigger as they ascended, due to decrease in water-pressure.

Solid stuff (shrapnel) would tend to sink, being heavier than water. some of it would go up first, then stop & come down (ballistic curve).

ellocobo - if you DO get any pics I hope you'll be able to post them here - I'd love to see how closely my pathetic attempts at visualising such a thing corresponds to reality:-))

Cheers,
Diolma

the key is that an explosion is an event over time; the early explosion will look far different than the result..this is a characteristic of most explosions, wet or dry..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)