Sujet: powers of 2 liste de sujets
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	A cylinder is to be filled with peas.		2012-06-12
		Silje pose la question : Hi! How can I solve the following question without the use of a calculator? "A cylinder is to be filled with peas. It is done like this: At 12:00 o'clock you put 1 pea in, at 12:01 you put 2 peas in, at 12:02 you put 4 peas in, at 12:03 you put 8 peas in, and so on. This continues until 14:00 o'clock (two hours later), when the last peas are put in and the cylinder is full. At what time is the cylinder half full?" Robert Dawson lui répond.
	Collecting an army		2009-02-25
		bevaz pose la question : Question from bevaz, a student: A ruler orders his chamberlain to collect an army from 30 houses. The servant goes to the first house alone and collects one man. At each house after that he takes the same number of men as he has already collected, so at the second house he goes with one other and so on. How many men did he collect in all? Penny Nom lui répond.
	The nth term of a sequence		2008-09-13
		lavett pose la question : what is the Nth term in the sequence when the sequence is 2,4,8,16... and the term numbers are 1,2,3,4... Stephen La Rocque lui répond.
	Does the sequence 1 2 4 8 16 32 etc have a name?		2008-07-17
		Richard pose la question : Just an idle thought really. Does the simple sequence 1 2 4 8 16 32 etc have a name? Victoria West lui répond.
	1/2, 1/2, 3/8, 1/4, 5/32, 3/32, 7/128		2008-01-22
		Neil pose la question : Find the next two terms in the following number sequence 1/2, 1/2, 3/8, 1/4, 5/32, 3/32, 7/128 Find a general rule for the nth term of the sequence Penny Nom lui répond.
	The number of decimal places in 1 over a power of 2		2002-09-12
		Allan pose la question : Does anyone notice that the maximum number of decimal place of the number 2 dividing 1 and its increment (4, 8, 16...etc) is the same as the power of number 2? eg. 22=4, thus the max number of decimal of 1/4=0.25 which is 2 decimal place and 2 is the number of power of 2 take 64 as example: 26=64, and take 1/64=0.015625 which has 6 decimal place (and is the power 6) Is there such a law in math? If yes, can you tell me what it is? Or is this my discovery? Paul Betts lui répond.

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