Comments on: Dice Stacking

By: Scott

Scott — Thu, 15 Nov 2007 22:57:03 +0000

C to the LJ ,
A real or “reactive” centrifugal force occurs in reaction to a centripetal acceleration acting on a mass. This centrifugal force is equal in magnitude to the centripetal force, directed away from the center of rotation, and is exerted by the rotating object upon the object which imposes the centripetal acceleration in accordance with Newton’s Third Law of Motion. Although this sense was used by Isaac Newton,[1] it is only occasionally used in modern discussions.[2][3][4][5]
A pseudo or “fictitious” centrifugal force appears when a rotating reference frame is used for analysis. The (true) frame acceleration is substituted by a (fictitious) centrifugal force that is exerted on all objects, and directed away from the axis of rotation.

By: TMo

TMo — Thu, 18 Oct 2007 14:51:32 +0000

WOW! Jesus hath cometh.

By: TMo

TMo — Thu, 18 Oct 2007 14:47:12 +0000

What? Nevermind… only works here, not on the main blog page, at least for me.

By: TMo

TMo — Thu, 18 Oct 2007 14:45:55 +0000

BOO video no longer available… i guess i missed the awesomeness.

By: qureyoon

qureyoon — Thu, 18 Oct 2007 02:17:50 +0000

it is not a hoax or fake

it’s real ! you can lear it too if you have the patience and the will ;)

http://www.toddstrong.com/dicestacking.php

By: MidwestMedic

MidwestMedic — Thu, 18 Oct 2007 01:41:16 +0000

Not that it matter much to how it is done. But, I think the cup is a type of speed stack cup.

http://www.youtube.com/watch?v=o0r-71zi–E

By: B.G.

B.G. — Wed, 17 Oct 2007 22:58:04 +0000

Wow, this is the second time in two weeks I hear about centripetal force! Last week the TV show Big Bang Theory (about a bunch of geeky physicists–a bit stereotypical, really) used this type of force in the show. As a way to impress a girl, he put an olive on the table and said he could pick it up without touching it. He then put a glass that was on the table over the olive and began to spin it. The force acted on the olive and brought it to the top. He put his hand under the lip of the glass and when he stopped spinning it, the olive fell into his hand. The friend then said, “Oh centrifugal force”. To which he said, no, it’s actually centripetal. He went on to explain it. Unfortunately his explanation went over my head. This show usually has something in it every week about physics. I think if the cups that are used were clear, you would be able to see the effect better. But then again, the magic would be lost…

By: Norm

Norm — Wed, 17 Oct 2007 21:14:55 +0000

OMG I LIK LUV MUDKIPS!

By: steve

steve — Wed, 17 Oct 2007 20:37:50 +0000

hey norm, i heard you liek mudkips?

By: C to the LJ

C to the LJ — Wed, 17 Oct 2007 19:16:34 +0000

I am just itching to point out… centrifugal force is not a real force. it is imaginary. i twitch when someone calls it centrifugal. it is centripetal.