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Post by BigTenVball on Apr 23, 2012 12:20:01 GMT -5
i am not sure about bringing a psychic, but if my team is there, I have some parents that are psychotic! Does that count?
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Post by Phaedrus on Apr 23, 2012 12:38:36 GMT -5
i am not sure about bringing a psychic, but if my team is there, I have some parents that are psychotic! Does that count? Sheesh, that's true of all teams. I have always wanted to coach at an orphanage.
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Deleted Member
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Post by Deleted on Apr 23, 2012 13:02:57 GMT -5
Too many musical numbers.
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Post by NotKingOfAnything on Apr 23, 2012 13:10:12 GMT -5
Too many musical numbers. and those uniforms made from curtains are hideous
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Post by oldman on Apr 23, 2012 14:49:56 GMT -5
Physics aside: the deep float serve is simple a different entry point for the ball, therefore the ball approaches the passers at a different angle and speed making the timing and angle of platform different. Passers that are unfamiliar with the serve have trouble because it is different than passing a ball served from the end line.
This is coaching 101 enter the ball into the court from different locations and with different or no spin so athletes can see various ball flights.
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Post by sevb on Apr 23, 2012 14:56:21 GMT -5
Physics aside: the deep float serve is simple a different entry point for the ball, therefore the ball approaches the passers at a different angle and speed making the timing and angle of platform different. Passers that are unfamiliar with the serve have trouble because it is different than passing a ball served from the end line. This is coaching 101 enter the ball into the court from different locations and with different or no spin so athletes can see a various ball flights. Wait... so 2 1/2 hours of circle bumping and queen of the court wont cut it??
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Post by oldman on Apr 23, 2012 15:07:38 GMT -5
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Post by mikegarrison on Apr 23, 2012 15:11:12 GMT -5
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Post by Garand on Apr 23, 2012 20:51:07 GMT -5
The physics behind the floater is not simple, but it can be thought of in a fairly simple way. Much like a knuckle ball in baseball, there are two main things that control the amount of float: speed and spin. There is a narrow range of speeds (velocities) that work best, and this is usually accepted to be around 35 to 40 mph. (I would love to see that verified.*)
The other issue is spin, and it is generally accepted that the maximum float will occur when the ball rotates about 1/4 to 1/2 of a rotation during its entire flight. (I'd like to see that verified, also.) This very small amount of spin will cause the ball to present differently shaped surfaces to the air flow and increase the random "float" movements.
The path of the ball, e.g., direction, height, etc., has no effect on the amount of float. But, as OldMan says, you want the receivers of the serve to see the ball coming at them from as many angles as is practical, so, yes, you serve in different ways from different spots.
* Things like this cannot be accurately predicted from theory. Most of what we know is based on lots of experimental ("empirical") data that has been correlated and meshes well with theory but, as mentioned before, cannot be developed from theory without lots of experimental help. In order to verify the items above would require lots of experimentation so don't hold your breath.
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Post by Phaedrus on Apr 23, 2012 20:55:32 GMT -5
Well, that is nothing that Computational Fluid Dynamics (CFD) and a couple of Cray computers couldn't handle. Where do I send my research proposal?
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Post by mikegarrison on Apr 23, 2012 21:06:06 GMT -5
Well, that is nothing that Computational Fluid Dynamics (CFD) and a couple of Cray computers couldn't handle. Where do I send my research proposal? Send your money to me, and I'll do your research for you.
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Post by Garand on Apr 24, 2012 2:22:58 GMT -5
I'll do it for ten bucks less than whatever Garrison wants. Me and my trusty HP-45 scientific calculator can handle it. *
* Actually, that's a bald faced lie. I hated tensor calculus.
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Post by Phaedrus on Apr 24, 2012 4:58:32 GMT -5
I'll do it for ten bucks less than whatever Garrison wants. Me and my trusty HP-45 scientific calculator can handle it. * * Actually, that's a bald faced lie. I hated tensor calculus. I learned just enough tensor calculus to create stress in my life.
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Post by Garand on Apr 24, 2012 10:17:14 GMT -5
CFD taught me to just "go with the flow".
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Post by oldman on Apr 24, 2012 13:09:10 GMT -5
FYI taken right from your link. "The Magnus effect is a special case of Bernoulli's principle" So I would guess that Bernoulli is applicable but I could be misreading your link.
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