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04-30-2006, 06:32 PM
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#1 |
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Guest
Posts: n/a
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Science problem
Hey,
I gotta figure this out for school, anyone able to explain this? Why doesn’t this pile of rocks fall over? http://img141.imageshack.us/img141/1959/rocks8yf.jpg |
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04-30-2006, 06:33 PM
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#2 |
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Side-Kick
Join Date: Jan 2006
Posts: 607
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Re: Science problem
Magic
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04-30-2006, 06:34 PM
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#3 |
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Banned User
Join Date: Apr 2006
Posts: 114
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Re: Science problem
The force
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04-30-2006, 06:34 PM
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#4 | |
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Side-Kick
Join Date: Feb 2003
Location: Twylight's twylight zone...
Posts: 16,301
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Re: Science problem
Glue. Either that or it used to be a really big rock, but years of erosion made it small and corrugated like that
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teh meh©
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04-30-2006, 06:36 PM
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#5 |
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The Fastest Kid Alive
Join Date: Apr 2006
Location: Titans Tower
Posts: 174
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Re: Science problem
My guesses.
1.) Because the rocks have eroded and weathered over themselves over time. 2.) Or because the pressure of the rocks from some other force bonded them together. 3.) Or they were freeze-thawed. Thats my guess, I wouldve been able to answer that last year, because I was in Earth Science and we went over something like that, but I forgot. Sorry, buddy. I gave my best info. Last edited by Kid Flash!; 04-30-2006 at 06:39 PM. |
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04-30-2006, 06:37 PM
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#6 |
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The boney king of nowhere
Join Date: Dec 2004
Location: Toronto
Posts: 21,956
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Re: Science problem
Chewing gum and hope?
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[I am in here]
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04-30-2006, 06:37 PM
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#7 |
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Banned User
Join Date: Apr 2006
Posts: 114
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Re: Science problem
Photoshop?
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04-30-2006, 06:39 PM
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#8 |
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The Fastest Kid Alive
Join Date: Apr 2006
Location: Titans Tower
Posts: 174
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Re: Science problem
lol
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04-30-2006, 06:41 PM
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#9 | |
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Omniposcient
Join Date: Jul 2002
Location: Look behind you...
Posts: 35,050
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Re: Science problem
Assuming the rocks aren't motored or held in place by rods, then it's likely due to center of gravity and friction.
Friction between the rocks due to their large mass keeps them from sliding off of eachother. The center of gravity of the sculpture is not over the middle of the bottom rock, but looks to be at the 'inner' (smaller) edge of the rock. If you draw a line up from the smaller edge of the bottom rock you can see that parts of the upper rocks are on the other side of the center of gravity. Since some of the weight is on the other side, it helps pull the tower in that direction, keeping it from toppling over. Parodoxically, the massive weight of the rocks is probably what's actually keeping it from tipping over (by greatly increasing friction, and putting some weight on the other side of the tower. Of course, this is just a guess, and could turn out to be complete bull.
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I don't care about your deathmatches. Don't even ask. I'll just report it as spam. Quote:
Last edited by wiegeabo; 04-30-2006 at 06:44 PM. |
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04-30-2006, 06:42 PM
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#10 | |
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Ancient but wise
Join Date: Jul 2004
Location: Anywhere and Everywhere
Posts: 13,671
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Re: Science problem
My guess is that the weight of the rocks is heavier/stronger than the pull of gravity.
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Half Acadian and fully CANADIAN! Quote:
"On the internet you can choose to be anything you want. So why do so many choose to be idiots?"
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04-30-2006, 06:47 PM
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#11 |
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2 E's are better than 1
Join Date: Dec 2005
Location: Otisburg-an itty bitty place
Posts: 18,513
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Re: Science problem
All you need is love.
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04-30-2006, 06:47 PM
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#12 |
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The Fastest Kid Alive
Join Date: Apr 2006
Location: Titans Tower
Posts: 174
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Re: Science problem
lol
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04-30-2006, 06:48 PM
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#13 | ||
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Side-Kick
Join Date: Feb 2003
Location: Twylight's twylight zone...
Posts: 16,301
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Re: Science problem
Quote:
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teh meh©
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04-30-2006, 06:50 PM
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#14 | ||
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Ancient but wise
Join Date: Jul 2004
Location: Anywhere and Everywhere
Posts: 13,671
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Re: Science problem
Quote:
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Half Acadian and fully CANADIAN! Quote:
"On the internet you can choose to be anything you want. So why do so many choose to be idiots?"
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04-30-2006, 06:51 PM
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#15 | |
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The Texas Outlaw
Join Date: Aug 2005
Location: With Oliver "The Ring Bear"
Posts: 4,566
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Re: Science problem
Quote:
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04-30-2006, 06:52 PM
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#16 |
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Me
Join Date: Mar 2001
Location: Houston, TX
Posts: 26,947
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Re: Science problem
the kid came here and registered just for this one thread... no one shoulda helped him
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04-30-2006, 06:53 PM
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#17 |
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Banned User
Join Date: Apr 2006
Posts: 114
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Re: Science problem
What Would Brian Boitano Do?
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04-30-2006, 06:59 PM
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#18 |
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El Señor Presidente
SHH! Administrator
Join Date: Mar 2003
Location: Outpost #31
Posts: 32,967
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Re: Science problem
dmcnx's face = Huge mass and gravity X The number of money shots it takes / the number of pimples = 226
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04-30-2006, 07:02 PM
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#19 | |
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2 E's are better than 1
Join Date: Dec 2005
Location: Otisburg-an itty bitty place
Posts: 18,513
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Re: Science problem
Quote:
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04-30-2006, 07:06 PM
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#20 |
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Kneel before 'Drox!
Join Date: Jul 2003
Location: The Phantom Zone
Posts: 81,979
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Re: Science problem
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"When I was in college, I was belittling the woman who later become my wife for not knowing who Boba Fett was, and she responded by asking me if I knew who the Prime Minister of Israel was. Surprisingly? Not Mon Mothma."-BKV |
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