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Physics time

PostPosted: Sat Nov 13, 2010 1:22 pm
by pra_ggresion
Here's some nerd candy.

The corn starch mixture becomes more viscous as pressure increases, so forced oscillations form these patterns
http://www.youtube.com/watch?v=nq3ZjY0Uf-g

http://www.youtube.com/watch?v=qxk3VqZZBsw

Re: Physics time

PostPosted: Sat Nov 13, 2010 9:53 pm
by holddown
Surface tension is awesome. There would be no surfing without surface tension.

Re: Physics time

PostPosted: Mon Nov 15, 2010 10:53 am
by Doc
Holdy

Can you put that sentiment into graph form...
Or a scientific formula?

Doc

Re: Physics time

PostPosted: Mon Nov 15, 2010 12:10 pm
by holddown
Thanks for asking. Here's some light reading that should support that statement.
http://en.wikipedia.org/wiki/Surface_tension

Re: Physics time

PostPosted: Tue Nov 30, 2010 8:43 pm
by H. Stamper
Yeah, maybe a nice histogram with the spreadsheet.

Re: Physics time

PostPosted: Fri Dec 03, 2010 10:08 am
by pra_ggresion
http://www.youtube.com/watch?v=at50acNlke8&feature=related

The physics that describes this also describes the Kirkwood Gap; an elliptical region near Jupiter that tends to kick matter out due to resonance between central forces from gravitational potential and their orbital periods.

Re: Physics time

PostPosted: Fri Dec 03, 2010 8:34 pm
by Doc
How 'bout a new post on the physics of noseriding?
From the science guys...
I've seen some good explanations before...
But it's been awhile.

Doc

Re: Physics time

PostPosted: Tue Dec 07, 2010 10:43 am
by pra_ggresion
I've only gotten a cheater five up there, so I don't know if I'm qualified to make a hypothesis. I've thought about it for hours though.

Re: Physics time

PostPosted: Tue Dec 07, 2010 12:57 pm
by Doc
The basic aspects being...
Forward motion...
Speed...
Downward pressure of rider's weight...
Downward pressure of water on tail of board...
Other aspects...
Surface tension...
Water flow...
Tail/fin configuration...
Ow.

Re: Physics time

PostPosted: Wed Dec 08, 2010 2:25 pm
by wanty
steepness of wave, and size of gut.



(this is now surf related)

Re: Physics time

PostPosted: Wed Dec 08, 2010 9:32 pm
by RXXL
Well you can highline... Lowline or midline... I was never that good at math... Just surfed too much I guess...