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Old January 4 2014, 02:01 PM   #11
rhubarbodendron's Avatar
Location: milky way, outer spiral arm, Sol 3
Re: Invisibility, fusion and interstellar space

Right, I had completely forgotten. If I recall my physics lessons from 35 years ago correctly, if you stand in an elliptical room you can hear at one focal point what is whispered at the other, while in the rest of the ellipse, you can hear nothing at all.
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