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Huygens' Clock Puzzle Solved
PhotoGuy writes "Okay, I haven't heard of this puzzle either until now, but it sounds like a fascinating phenomenon. According to this article:Huygens had two clocks side by side and he found that even when they began out of sync, they soon got into a rhythm where the pendulum on one moved as if it were a mirror image of the other.The article is pretty light on the explanation, noting only the conditions required (small relative mass of the pendulums [pendula?], relatively close speed of the clocks), and not really addressing the physics behind it.
" There's a great site at Georgia Tech that explains the puzzle in more detail.
Harem, because a man could impregnate his entire Harem in a single day since they all became fertile on the same day.
More likely because a harem would be an environment in which many women lived together without much contact with the outside world.
I mean, some of these sheiks were reputed to have dozens of women in their harems. No way he could impregate them all on the same day , at least not with the technology that existed at the time.
Nowadays, for that sort of thing, we have Cowboy Neal...