Effect: The magician allows the spectator to choose a card. Once they see it, they slip it back into the deck. The magician then shuffles the deck and without warning tosses it against a nearby window. After all the cards settle, one is left stick... Read more of Card Through The Window at Card Trick.caInformational Site Network Informational
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(Patchwork Puzzles)
Professor Rackbrain tells me that he was recently smoking a friendly
pipe under a tree in the garden of a country acquaintance. The garden
was enclosed by four straight walls, and his friend informed him that he
had measured these and found the lengths to be 80, 45, 100, and 63 yards
respectively. "Then," said the professor, "we can calculate the exact
area of the garden." "Impossible," his host replied, "because you can
get an infinite number of different shapes with those four sides." "But
you forget," Rackbrane said, with a twinkle in his eye, "that you told
me once you had planted this tree equidistant from all the four corners
of the garden." Can you work out the garden's area?

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