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| cards:red_black_relationship_principle [2013/06/13 11:22] – link added denisbehr | cards:red_black_relationship_principle [2014/01/18 08:39] – tylerwilson | ||
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| This principle makes use of the fact that there is an equal number of red and black cards in the deck. Thus when two piles are formed, one with x cards and the remainder with 52-x cards, then the number of red cards in x equals the number of black cards in the remainder plus 26-x. A special case is that the two piles are equal with 26 cards each, since in that case 26-x=0 and thus the red cards in one half equal the black cards in the other half. | This principle makes use of the fact that there is an equal number of red and black cards in the deck. Thus when two piles are formed, one with x cards and the remainder with 52-x cards, then the number of red cards in x equals the number of black cards in the remainder plus 26-x. A special case is that the two piles are equal with 26 cards each, since in that case 26-x=0 and thus the red cards in one half equal the black cards in the other half. | ||
| - | The roots of the trick cam be found in an old puzzle involving the literal mixing of wine and water. | + | The roots of the trick can be found in an old puzzle involving the literal mixing of wine and water. |
| - | In 1939, Oscar Weigle published "The Little Star Prediction" | + | Oscar Weigle published "The Little Star Prediction" |
| - | Robert Hummer made use of the principle, in expectedly unusual ways. See [[http:// | + | Robert Hummer made use of the principle, in expectedly unusual ways. See [[http:// |
| - | Another early use is Warren Wiersbe' | + | Another early use is Warren Wiersbe' |
| - | The earliest use with unequal packets might be Roy Walton' | + | The earliest use with unequal packets might be Roy Walton' |
| - | See also Arthur MacTier' | + | See also Arthur MacTier' |
| {{tag> | {{tag> | ||