Re: [Phys-l] Baseball

[Dennis Erickson <derickson.21stcentury@rcn.com>]

Squinting can make the image sharper (clearer).  For a near sighted  
person it helps because it increases the depth of field(in focus  
distances)


Dennis Erickson
WA9FBC

Chicago Sidewalk Astronomy Club
Chicago Section--International Dark-Sky Assn.
http://www.sidewalk-astronomy-club.com/chicago
http://www.darksky.org

Keep your Eye on the Sky!


On Oct 19, 2006, at 11:48 PM, JMGreen wrote:

> There is something I don't understand re baseball pitchers:
>
> Some pitchers -- but not all -- lean over and squint at the catcher
> when taking a signal -- Why do they do this?
>
> Are they trying to get a bit lower or a bit closer to the catcher  --
> perhaps to improve vision in some way?
>
> Is there some principle of optics that I don't understand?
>
> Or is the pitcher just trying to look silly?
>
> Jim
>
>
> J M Green
> Email:  MailTo:JMGreen@sisna.com
> WWW: HTTP://users.sisna.com/JMGreen
>
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