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Candle burning under water: water, other liquid or simple reflection?

So, who again told us that fire should be put out by hosing down some water? This candle is not aware it shlould go out! It only extinguishes when someone blows it out. Hey wait a minute! Do I sense

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Posted in Light: reflection

Holographic mobile phone: reflection of a moving image

Check out the holo jelly fish coming from your iphone android or windows phone. Cool huh? All you need is some plastic packaging material or CD box, scissors a bit of tape and the required app. Magic? Yes! At least when

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Posted in Light: reflection
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