From Yau-Man's email:
I can't believe they didn't show or explain how fire can be started with eyeglasses - they missed an opportunity for another science lesson.. My only thought is that perhaps the producers want to preserve the mystery about fire-starting so as to not make it easy for subsequence series survivors..
There's no way to focus the sun with your glasses - the trick is to put a drop of water on the glass to act as a magnifying glass (convex lens) and focus the sun to start a fire. .. And who do you think came up with that idea and didn't get acknowledged...
Oh well, at least I'm still on the island!!!
Gordon & Helen in Crete
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