Ellipse Billiard table(Elliptical Billiards table) math toy
Description
This Billiard Table Has A Elliptical Round. And So If You Roll A Ball From One Focus, The Ball Reach The Other Focus. Alike Light, Sound, ... Try On <Iframe Width="560" Height="315" Src="Https://Www.Youtube.Com/Embed/Kkx17Xld3Bw" Frameborder="0" Allowfullscreen></Iframe>
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