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Thread: What clear liquid has the best infra red/heat absorption properties?

  1. #1 What clear liquid has the best infra red/heat absorption properties? 
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    This liquid should in effect be a heat filter for sunlight that allows through as much visible light as possible...Can anyone help?


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  3. #2  
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    Think about all those shots you've seen of divers under tropical seas or lagoons. A lot of sunlight down there, but not a lot of heat.

    For your purposes it will be a question of working out quantities.


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