#260658 - 18/07/2005 14:43
Math is eluding me... quick question...
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addict
Registered: 09/06/1999
Posts: 558
Loc: Newfoundland, Canada
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How much would a swimming pool with the following dimensions weigh?
9 foot diameter (round pool), 26 inch water height.
Thanks!
Seems simple enough but I fail to come up with consistent answers. My math would be to multiply the diameter by pi and then that result by the height. The I have to multiply by something else. As I type this I seem to remember pi * r^2 (radius and not diameter!). Aww crap. Gotta run now though. It seems the patio that my friend decided would be a good option is heaving something awful and I might have to let the water go!
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#260659 - 18/07/2005 14:55
Re: Math is eluding me... quick question...
[Re: ShadowMan]
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pooh-bah
Registered: 14/01/2002
Posts: 2489
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Yup pi * r^2 x height = volume. Remembering to keep the units the same.
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#260660 - 18/07/2005 15:02
Re: Math is eluding me... quick question...
[Re: ShadowMan]
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carpal tunnel
Registered: 13/07/2000
Posts: 4174
Loc: Cambridge, England
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Water's always easier in metric. Your radius is 4.5ft*30.5cm/ft, or 137.25cm. Your depth is 26in*2.54cm/in, or 66cm. Your volume is pi * 137.25^2 * 66, or about 3.9 million cc, so at 1g/cc the water would weigh about 3.9 metric tons, or 4.3 Imperial tons.
Peter
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#260661 - 18/07/2005 15:13
Re: Math is eluding me... quick question...
[Re: peter]
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carpal tunnel
Registered: 20/12/1999
Posts: 31578
Loc: Seattle, WA
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Boy that sounds like a lot. He's just described your typical dime-store plastic wading pool. Sure it's going to weigh 4 tons?
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#260662 - 18/07/2005 15:18
Re: Math is eluding me... quick question...
[Re: peter]
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addict
Registered: 09/06/1999
Posts: 558
Loc: Newfoundland, Canada
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so approximately 4000 kgs or 8000 pounds. That's the most likely figure I got as well. The water is currently draining. I wouldn't let my nephew in that with that much weight resting on a few 4x4 posts.
Thanks!
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#260663 - 18/07/2005 15:22
Re: Math is eluding me... quick question...
[Re: tfabris]
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carpal tunnel
Registered: 29/08/2000
Posts: 14485
Loc: Canada
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Water is heavy. I got the same answer doing a quick and dirty cubic foot calculation.
Dime store wading pools are usually less than 12" deep, and more like 4-5' diameter (have to fit in the purchaser's automobile).
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#260664 - 18/07/2005 15:22
Re: Math is eluding me... quick question...
[Re: ShadowMan]
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carpal tunnel
Registered: 20/12/1999
Posts: 31578
Loc: Seattle, WA
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Hm. This is about the size you're describing, and now that I actually *see* it in a picture, I could imagine that weighing 4 tons. We reinforced our deck before we put our hot tub on it. More posts and footings. I'm glad we did.
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#260665 - 18/07/2005 15:24
Re: Math is eluding me... quick question...
[Re: tfabris]
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carpal tunnel
Registered: 10/06/1999
Posts: 5914
Loc: Wivenhoe, Essex, UK
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Peter's math is correct, water is surprisingly heavy stuff.
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#260666 - 18/07/2005 16:22
Re: Math is eluding me... quick question...
[Re: andy]
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pooh-bah
Registered: 06/04/2005
Posts: 2026
Loc: Seattle transplant
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http://www.thisistrue.com/currentissue.htmlThis Is True ran a story this week about a chap who didn't do the calculations on his wading pool...
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#260667 - 18/07/2005 17:26
Re: Math is eluding me... quick question...
[Re: ShadowMan]
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carpal tunnel
Registered: 17/12/2000
Posts: 2665
Loc: Manteca, California
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The math seems spot on for how much the water weighs... but how much does the POOL weigh? Yuk Yuk Yuk. 
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Glenn
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#260668 - 18/07/2005 18:32
Re: Math is eluding me... quick question...
[Re: Robotic]
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pooh-bah
Registered: 25/08/2000
Posts: 2413
Loc: NH USA
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Yes, but the post two items down was so much more interesting: Quote:
BREAST OF SHOW: "We're kinda at our wits' end, so it's come to this,"
says Sheba Love, a protestor from "Breasts Not Bombs" who dropped her
top in San Francisco, Calif., to get attention to her message. To help
get her message across, she declared herself a size 40D. "But it blows
me away that all we have to do is bare our skin and we can cause such a
snit," she says. Onlookers were hardly in a snit. "I think it's great!"
declared one woman. Police were standing by to ensure the protest was
peaceful. Co-protestor Sherry Glaser, size 40DDD, didn't think there
would be any problem. "Boobies never hurt anyone," she said. (San
Francisco Chronicle) ...Though if they could, a couple of 40DDDs would
do it.
-Zeke
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#260669 - 18/07/2005 18:46
Re: Math is eluding me... quick question...
[Re: Ezekiel]
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addict
Registered: 14/01/2002
Posts: 510
Loc: NY
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Quote:
Yes, but the post two items down was so much more interesting:
Good to see the boobie talk coming off of IRC and onto the board.
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Heather
"I distrust those people who know so well what God wants them to do because I notice it always coincides with their own desires." -Susan B Anthony
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#260670 - 18/07/2005 23:12
Re: Math is eluding me... quick question...
[Re: Heather]
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carpal tunnel
Registered: 17/12/2000
Posts: 2665
Loc: Manteca, California
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Or the post about outlawing streaking in time for the Olympics. Quote:
"You can't assume these so-called streakers will always have peaceful
intent," he insisted. "We don't want to imagine, for example, what
would happen if one had a knife." (AP) ...And where, exactly, sir,
might a streaker hide one?
Or may I ask, arn't there already laws about using sharp pointy things in public?
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Glenn
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#260671 - 18/07/2005 23:23
Re: Math is eluding me... quick question...
[Re: gbeer]
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pooh-bah
Registered: 06/04/2005
Posts: 2026
Loc: Seattle transplant
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Quote:
Or may I ask, arn't there already laws about using sharp pointy things in public?
That was addressed in the June 26 issue:
Quote:
ANOTHER SYMPTOM OF THE SAME DISEASE: An editorial in the British Medical
Journal has a vital, urgent suggestion for the improvement of public
health: pointy kitchen knives must be banned to "reduce knife crime."
Laws must be passed, the authors say, to require blunt, rounded knife
tips because of a recent rise in stabbings. In the U.S., even the most
rabid gun-control advocates ridiculed the proposal. "Can sharp stick
control be far behind?" sneered a spokesman for the Brady Campaign to
Prevent Gun Violence. But the editorial's authors are serious. They say
they polled 10 English chefs and "none gave a reason why the long,
pointed knife was essential." (New York Times) ...Insert obligatory
joke about the inability of the English to cook.
This particular entry caused quite a ruckus on Randy Cassingham's This Is True forum.
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#260672 - 19/07/2005 01:58
Re: Math is eluding me... quick question...
[Re: Heather]
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pooh-bah
Registered: 25/08/2000
Posts: 2413
Loc: NH USA
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Glad to oblige Heather! Slow day at the office and all.  -Zeke
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#260673 - 19/07/2005 15:49
Re: Math is eluding me... quick question...
[Re: Robotic]
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carpal tunnel
Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
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Quote:
they polled 10 English chefs and "none gave a reason why the long,
pointed knife was essential."
Apparently you don't have Chicken Kiev in Britain, or any other stuffed meat dish.
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Bitt Faulk
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#260674 - 19/07/2005 17:00
Re: Math is eluding me... quick question...
[Re: wfaulk]
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carpal tunnel
Registered: 13/07/2000
Posts: 4174
Loc: Cambridge, England
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Quote:
Apparently you don't have Chicken Kiev in Britain, or any other stuffed meat dish.
You need a sharp knife for chicken Kiev, but not necessarily a pointed one -- a rounded one would do. However, you definitely need a pointed one for de-seeding chillies halved widthways.
Peter
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#260675 - 19/07/2005 17:16
Re: Math is eluding me... quick question...
[Re: peter]
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carpal tunnel
Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
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I cant think of a way to cut a pocket in a chicken breast without a pointed knife.
I suppose I'm thinking specifically of the preparation where you actually cut a pocket into the breast as opposed to rolling/bunching it.
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Bitt Faulk
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#260676 - 19/07/2005 17:22
Re: Math is eluding me... quick question...
[Re: wfaulk]
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carpal tunnel
Registered: 13/07/2000
Posts: 4174
Loc: Cambridge, England
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Quote:
I cant think of a way to cut a pocket in a chicken breast without a pointed knife.
Again, a rounded sharp knife would do. You could use a butter-knife, if it were sharp all round the rounded end. Mind you, I guess you could also stab someone with a butter-knife if it were sharp all round the end, so there still wouldn't be much gained.
Peter
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#260677 - 19/07/2005 17:31
Re: Math is eluding me... quick question...
[Re: peter]
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carpal tunnel
Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
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Oh, I see what you mean. A round-ended knife where the end was still sharpened never occurred to me.
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Bitt Faulk
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#260678 - 19/07/2005 18:01
Re: Math is eluding me... quick question...
[Re: wfaulk]
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carpal tunnel
Registered: 29/08/2000
Posts: 14485
Loc: Canada
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Or skinning/trimming just about any raw meat source.
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