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synch
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[ just a fun question :) ]
Thinking of the focussing properties of ellipses -
If a swimming pool was shaped liked a large half-ellipsoid...and someone dived in at a focus...would the splash then largely appear at the other focus ? In fact would a swimmer at the second focus then be projected up from the water ?
Thinking of the focussing properties of ellipses -
If a swimming pool was shaped liked a large half-ellipsoid...and someone dived in at a focus...would the splash then largely appear at the other focus ? In fact would a swimmer at the second focus then be projected up from the water ?