The ring on a chain trick

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Falling ladders – why does this happen?

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Indestructible coating?!

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Testing the US Military’s Worst Idea

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How To Measure The Tiniest Forces In The Universe

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Inside The Navy’s Indoor Ocean

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What’s in a candle flame?

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The world depends on a collection of strange items. They’re not cheap

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What Happens If A Star Explodes Near The Earth?

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