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Old 06-20-2007, 10:19 PM   #1
MedicineForUs

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Default Post whacky or neat math stuff
Originally posted by mrmitchell
0.999=1 No.
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Old 06-20-2007, 10:24 PM   #2
cenRealliat

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Why? Do you think 0.999=1?
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Old 06-20-2007, 10:26 PM   #3
Sapremolz

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No, of course not, I'm just going to enjoy watching this thread.
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Old 06-20-2007, 10:28 PM   #4
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Anyhow, one of the simpler interesting results from math is:

Take the curve y = 1/x on the domain (0,1]
Rotate this curve about the x axis (line of y = 0)

You get an object shaped like an oboe. The surface area is infinite (logarithmically divergent) but the volume is finite.
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Old 06-20-2007, 10:30 PM   #5
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Originally posted by KrazyHorse
Anyhow, one of the simpler interesting results from math is:

Take the curve y = 1/x on the domain (0,1]
Rotate this curve about the x axis (line of y = 0)

You get an object shaped like an oboe. The surface area is infinite (logarithmically divergent) but the volume is finite. 1 + 1 = a window.

Try it!
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Old 06-20-2007, 11:35 PM   #6
Leczyslaw

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1 + 1 = a window.

Try it!

It worked!

Also, if you enter 5318008 into a calculator and then look at it upside down, it spells "boobies".

Really! Try it!
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Old 06-20-2007, 11:43 PM   #7
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Originally posted by Drake Tungsten

Also, if you enter 5318008 into a calculator and then look at it upside down, it spells "boobies".

Really! Try it! did not see that one coming. Many thanks for the lol .
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Old 06-21-2007, 02:20 AM   #8
DexOnenlyCymn

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Originally posted by Zkribbler
Actually, I "work" for the government. Fixed.
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Old 06-21-2007, 03:16 AM   #9
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Originally posted by Drake Tungsten


Fixed. Thanks, Drake. My bad.
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Old 06-21-2007, 03:19 AM   #10
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Originally stated by Stan Laurel
For example, two and two is ..something. And four and four is something. It's different than the first something, but.. Originally stated by Oliver Hardy
Stanley, I know exactly what you mean. Originally stated by Stan Laurel
You do?
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Old 06-21-2007, 04:10 AM   #11
itititit

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Originally posted by KrazyHorse

The surface area is infinite (logarithmically divergent) but the volume is finite. WTF?
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Old 06-21-2007, 04:21 AM   #12
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Far from the center, the shape essentially becomes a plane infinitely close to the x-y plane.
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Old 06-21-2007, 04:28 AM   #13
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Lifted from elsewhere:

If a sphere of radius r is enclosed in a polyhedron in which each face touches the sphere, the surface-to-volume ratio (independent of number of faces or shape) of the polyhedron will be the same as that of the sphere.

JM
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Old 06-21-2007, 05:59 AM   #14
payowlirriply

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Originally posted by Drake Tungsten
1 + 1 = a window.

Try it!

It worked!

Also, if you enter 5318008 into a calculator and then look at it upside down, it spells "boobies".

Really! Try it! 1134209=Go2hell
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Old 06-21-2007, 12:50 PM   #15
flower-buy

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get a chess board

place a penny on the first square

doulbe the amount on the next (i.e. 2)

and keep on doubling on each square there after (4,8,16)

how many pennies would there be on the last square....
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Old 06-21-2007, 02:43 PM   #16
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An oldie but goodie...

There's a cylindrical well with some amount of water in it. 2 sticks stand in it, reaching from the bottom at one side to the wall on the other and crossing themselves exactly at the surface of the water. One stick is 3 meters tall (or any other unit), the other 2 meters. The water stands 1 meter high. What's the diameter of the well?
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Old 06-21-2007, 03:45 PM   #17
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Scale is irrelevant if we have units. The corners are 90° I suppose and the water edge is parallel to the ground?
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Old 06-21-2007, 04:02 PM   #18
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Sure it's 2-dimensional, all takes place on a diametral cut through the 2 sticks. This doesn't mean it's as easy as it looks, though.
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Old 06-21-2007, 04:31 PM   #19
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Originally posted by Sir Ralph
Sure it's 2-dimensional, all takes place on a diametral cut through the 2 sticks. This doesn't mean it's as easy as it looks, though. The complexity of the problem has nothing to do with any cylinders anyway, rather with the fact that the width of the system is pretty basical to it.
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Old 06-21-2007, 04:49 PM   #20
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"If one-and-a-half chickens lay one-and-a-half eggs in one-and-a-half days, how many eggs lay nine chickens in nine days?"

(That's actually pretty easy if you calculate it, but if you ask some random person to answer straight away, you hear either 9 or 81, but very rarely the true solution)
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