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Subject: Re: You use different lenses underwater because the speed of light is different



On the 23 Apr 2006 18:46:58 -0700, "Dave Hillstrom"
wrote:

>You can't use regular lenses underwater, that's why you always see
>special cameras on ocean documentaries and such. People think it's
>because they need to be waterproof but the real reason is the speed of
>light underwater is different than in air and it makes the light bend
>at different angles through the lenses.
>Einstein proved it.

You should really be posting this sort of material in
News:uk.local.isle-of-wight

This stuff will go down a treat.

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