Friday, March 08, 2013
Safeco v Chase
Eno highlights some differences:
There’s Arizona, all the way near the warmest part of the country, and Seattle over there by the coldest part of the country. Physics professor Robert Adair found that ten degrees of air temperature meant four extra feet of batted ball distance, so this means something. Jeff Zimmerman agreed, or he found that those same ten degrees meant 4.2 feet of distance. Our own site found a relationship between batted ball distance and home runs per fly ball, so this is meaningful stuff.
It’s not some ‘heavy air’ thing either. If you bucket games into temperatures as Zimmerman did, you find that the ball goes 274 feet in Seattle when it’s colder than 65 degrees, and 277 in the rest of the country at that temperature. When it’s over 62 degrees, the ball goes 279 feet in Seattle and 282 feet otherwise. The effect due to temperature is more stark than any effect due to humidity.
So it really looks like Arizona’s atmosphere is conducive to power and Seattle’s isn’t. ?
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