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Okay, so here it is, Newton's Rings,
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which really should be called Hooke's Rings,
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because he's the guy that
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in Micrographia published how they worked.
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But remember, they had different light theories.
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So here are two pieces of glass, two disks of glass.
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And I'll change the lights so we see light through them.
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Now I can't remember which is which,
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but let me guess that
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if I put this one over here, having turned it over --
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Oh I can see, yes you can see.
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See those patterns?