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For those of you who aren't keeping up with the up to the minute minutae of the New England Patriots (American football team) scandal (presumably because you ha
by Anechoic 12y ago
For those of you who aren't keeping up with the up to the minute minutae of the New England Patriots (American football team) scandal (presumably because you have lives), head coach Bill Belichick gave a press conference a few hours ago where he provided a hypothesis of what might have happened: as many people know, quarterbacks like their game footballs prepared in specific (sometimes elaborate [0]) ways prior to use in games. Belichick says that the team went over the process they use for games a few days ago and they determine that the preparation process they use for their footballs (which he claims they do right up to the point they are given to officials for pre-game testing) increases the air pressure in the balls by about 1 psi [1]. Therefore, the balls appear legal when tested by officials, but after a few hours of sitting around, the pressure reduces to below the legal limit. He doesn't specify the process used by the team, but presumably it's some kind of rubbing that heats the ball up, and when it cools down the interior air pressure is reduced accordingly.
I'm sure someone will test this out and verify or discredit the claim.
[0] http://www.nytimes.com/2013/11/24/sports/football/eli-mannings-footballs-are-months-in-making.html?_r=0 http://www.nytimes.com/2013/11/24/sports/football/eli-mannin...
[1] http://www.boston.com/sports/football/patriots/extra_points/2015/01/bill_belichick_defends_patriots_on_deflategate_we.html?p1=feature_pri_hp http://www.boston.com/sports/football/patriots/extra_points/...
- zaroth 12y agoGoing from 75 degrees to 50 produces something like a 1.5 psi reduction. 85 -> 35 wound be closer to a 2psi drop. Water vapor increases the drop. Funny thing is searching for the calculation produces highly variable results.
- axiak 12y agoBelichick specifically said he was not talking about atmospheric temperature conditions, but the conditions of the ball. Presumably whatever rubbing of the ball was necessary for preparation heated the air in the ball. He must have explained this in the most obtuse way possible to reduce the chance people call him a cheater for heating the air in the ball.
- jlcummings 12y agoExactly the same reason professionals in auto racing use filtered/pure nitrogen to fill tires, instead of traditional compressed atmospheric air.
- stchang 12y ago> (presumably because you have lives) Why does it matter what people do for leisure?
- Anechoic 12y agoI was being self deprecating - you can see from my other post in this thread and from my gameday Twitter posts ([0] for example) that I'm an NFL/Patriots fan. [0] https://twitter.com/Anechoic/status/558381309115244545 https://twitter.com/Anechoic/status/558381309115244545
- maxerickson 12y agoIt would be sort of ironic if the explanation for the whole kerfuffle is that they fill the balls with hot air.