【物理エンジン】絶対入る楕円ビリヤードと永久機関　Elliptical Pool Table

An episode about elliptical pool tables and perpetual motion machines of the second kind.

References:
Perpetual Motion References:

"Why Cats Land on Their Feet: And 76 Other Physical Paradoxes and Puzzles(An Elliptical Mirror Perpetuum Mobile)" by Mark Levi
"ひらめきの物理学 身近な物理現象を77のパズルとパラドックスで解き明かす"

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