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Old Sat Jan 10, 2009, 10:44pm
SAump SAump is offline
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Join Date: Jun 2005
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Post Keeping it real

Quote:
Originally Posted by MrUmpire View Post
So, SAUmp is now posting evidence to support the fact that fastballs do not rise. Who said people can't change?
I think I caught the bug after reading about fluid dynamics in another thread.
I am aware that a parabolic function will model a parabolic curvature.
I am aware that a rising fastball doesn't exist in a parabolic model.
The Pitch/FX data destroys the logic of the parabolic model.
Does this count as 4 down, one up in Pitch/FX data or as 3 down, no up in parabolic data?

Observed the same physics debate taking place in the comments below the Q&A of that Gameday thread that took place here two years before. Coincidence?
Outside a vacuum, simple math predicts a 9.9435 ft/sec or 6.77966 mph drag/lift/rise.
Inside a vacuum, that +10 inch Pitch/FX spin data provides a +2 ft/sec invisible rise.
Already 2 ft/sec closer based on information from a "bad" 100mph model.
Remember a fastball wasn't suppose to rise at all; just cut, slide and sink.
I'd like to insert some Earl Weaver type humor here meant to loosen everyone up.
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Last edited by SAump; Sun Jan 11, 2009 at 03:46am.