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The article leaves out the most essential part of the whole story: The theoretical proof that the other end of the rod will really have a higher downward velocity component when one end hits the table. While it's clear that the rod gains angular momentum, there is still the possibility that the tangential velocity of the rotational movement is compensated for by the upwards speed which is caused by the bouncing.
I'm not saying this whole thing is wrong but without this critical point, the theory is not entirely convincing and I am too much of a critical thinker to believe just from watching the videos.

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