Date: Sat, 19 Jun 2010 15:56:25

Author: Thomas Greenslade

Subject: Re: When does "gravity" begin?

Post:

If the baseball is given a backward spin, it will experience a small
upward Magnus effect force as it travels through the air, and thus does
not drop as much as expected -- thus seeming to rise. I am sure that
giving the ball some overspin, so it drops, is a lot easier than giving
it back spin.

Tom

Paul Lulai wrote:
> I've heard from multiple people that there is the amazing rising
> fastball. It goes up instead of down. I've been told it is mystical
> and that nobody can explain how it happens. It defies not only
> gravity, but all of the laws of physics...
>
>
> Paul Lulai
> Physics Teacher
> Medtronic - St Anthony RoboHuskie 2574
> 3303 33rd Ave NE
> St. Anthony Village Senior High
> Saint Anthony Village, MN 55418
>
> (w) 612-706-1146
> (c) 612-208-PHYZ (or 7499)
> (fax) 612-706-1020
> plulai@stanthony.k12.mn.us
> http://www.stanthony.k12.mn.us/hsscience/
>
>
> ------------------------------------------------------------------------
> *From:* tap-l-owner@lists.ncsu.edu on behalf of hubisz
> *Sent:* Sat 6/19/2010 11:12 AM
> *To:* tap-l@lists.ncsu.edu
> *Subject:* [tap-l] When does "gravity" begin?
>
> I was in the dentist's office the other day and saw a News and Observer
> (June 10th) newspaper headline about a baseball pitcher whose pitches
> defied gravity. While I rarely read newspapers especially the sports
> pages, I had to see that story.
>
> Apparently, his pitches rise up and get to the plate before gravity can
> take over.
>
> Prey neat, eh?
>
> John Hubisz
>
>
>
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> signature database 5210 (20100619) __________
>
> The message was checked by ESET NOD32 Antivirus.
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