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Posted: Sun Dec 21, 2008 11:22 pm
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Posted: Mon Dec 22, 2008 9:02 am
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Posted: Mon Dec 22, 2008 2:43 pm
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Posted: Mon Dec 22, 2008 4:48 pm
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Posted: Tue Dec 23, 2008 10:47 am
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zfatal The key words are "if measured in the same manner." If an object that, on Earth, weighed just more than the maximum for the bathroom scale, was transported to the moon, its weight would be a sixth of its normal weight. The bathroom scale would then lower past zero, and equal a weight more than the object normally would on a bathroom scale on Earth, because bathroom scales are poor means of measuring weight and only go up to a certain number before passing over zero again. This is far fetched, but it is the only thing I can think of. You're on the right track, but that is incorrect.
All of us remember from our high school or middle school physics, that the Moon has a fraction of the Earth's gravity. In fact, we were all told that it's a sixth the gravity of the Earth. For example, if you had a bathroom scale, and you put your 600-pound Bengal tiger on this bathroom scale, and then transport the tiger and the bathroom scale to the Moon, the Bengal tiger would weigh 100 pounds. Here's the question. Is there anything you can think of that, if measured in the same way, would weigh more on the Moon than it does on the Earth? Note there may be more than one answer.
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Posted: Wed Dec 24, 2008 8:03 am
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Posted: Fri Dec 26, 2008 8:32 am
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Posted: Fri Dec 26, 2008 8:54 am
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Posted: Sat Dec 27, 2008 10:17 am
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Posted: Sat Dec 27, 2008 2:16 pm
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Posted: Sat Dec 27, 2008 10:27 pm
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Posted: Sun Dec 28, 2008 7:55 am
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Correct. This is because the moon has no atmosphere.
This next puzzler is mathematical in nature. Imagine two numbers, such that their product is equal to their sum. I'll give you two numbers: 5 and 1 and 1/4. You add them, and you get 6 and 1/4. You multiply them, and you also get 6 and 1/4. Both numbers have to be the same. For example, let's take 3/7ths as the number. 3/7ths and 3/7ths add up to 6/7. But, unfortunately, they multiply to 9/49ths. But if it worked, then, well, that would be the kind of answer I'm looking for. Any number is fair game. Fractions, irrational numbers, if it works, you win.
Is there such a number that if you multiply it by itself the product is equal to adding it to itself?
If so, what are those numbers?
Of course zeros are not allowed, because everybody knows zero plus zero is equal to zero times zero. Zero is disqualified.
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Posted: Sun Dec 28, 2008 9:32 am
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Posted: Sun Dec 28, 2008 2:45 pm
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