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  2. Premature atrial contraction - Wikipedia

    en.wikipedia.org/wiki/Premature_atrial_contraction

    In some people, PACs occur in a predictable pattern. Two PACs in a row are called doublets and three PACs in a row are triplets. Depending whether there are one, two, or three normal (sinus) beats between each PACs, the rhythm is called atrial bigeminy, trigeminy, or quadrigeminy.

  3. Balance puzzle - Wikipedia

    en.wikipedia.org/wiki/Balance_puzzle

    For example, in detecting a dissimilar coin in three weighings (⁠ = ⁠), the maximum number of coins that can be analyzed is ⁠ = ⁠.Note that with ⁠ ⁠ weighings and ⁠ ⁠ coins, it is not always possible to determine the nature of the last coin (whether it is heavier or lighter than the rest), but only that the other coins are all the same, implying that the last coin is the ...

  4. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    Coins or currency which must be accepted in payment of debt. legend The principal inscription on a coin. [1] lettered edge The outside edge of a coin containing an inscription. [1] low relief A coin with the raised design not very high above the field. luster The appearance of a coin's ability to reflect light; brilliance.

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  6. How to protect yourself from scam PACs - AOL

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  7. Carnival game - Wikipedia

    en.wikipedia.org/wiki/Carnival_game

    An example of a carnival game of chance is the "Dime Pitch" game. The objective is to toss a coin (typically a dime or quarter) onto a horizontal board that has random marks on it. The marks on the board are the same diameter as the coin thrown. By completely covering the mark on the board with the coin, the player wins.

  8. Coins in a fountain - Wikipedia

    en.wikipedia.org/wiki/Coins_in_a_fountain

    Coins in a fountain is a problem in combinatorial mathematics that involves a generating function.In this problem, a fountain is an arrangement of non-overlapping unit circles into horizontal rows in the plane so that consecutive circles in the bottom row are tangent to each other, and such that each circle in a higher row is tangent to two coins from the next row below it.

  9. Play Just Words Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/just-words

    If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online!