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Why do lighthouses use lenses?

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Why do lighthouses use lenses?

asked Jun 17, 2017 8.7k views

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Why do lighthouses use lenses?

Chemistry
high-school

Heather Hins asked

by Heather Hins

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1 Answer

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To see far away? I'm thinking that like human glasses, lighthouses need lenses to see the far away boats. Or humans.

Hey Teacher answered Jun 22, 2017

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