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




"Dave Hillstrom" wrote in message
news:1145843218.216398.119160@i39g2000cwa.googlegroups.com...
> 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.
>

Someone wasn't concentrating in Physics at school...



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