moleculo
Footballguy
1. They probably should ensure their gauges are properly calibrated, and I bet they do from here on.the first bolded is pretty interesting --- I would've thought they could just somehow calibrate their gauges, periodically.thanks for asking a legitimate question without snide. i'm happy to go over this as long as you keep it civil...start up with "shark pool be sharkin'" crap and I'm done.hey, I have a question for you, since you seem to be one of the only people around here interested and educated in the science and engineering side of it.one would assume that Brady would finally reveal his text messages and tell his complete side of the story as part of the appeal.That's too much, IMO. The only reason I can see a suspension that long is the NFL hopes Brady will accept a lessened suspension upon appeal. Someone with more legal knowledge/knowledge about labor law would have to enlighten me about whether accepting a reduced suspension upon appeal would mitigate Brady's legal options.Bleacher Report saying "heavy" suspension about to come down(4-6 games) and Brady will appeal.
I only hope that this all becomes public and Godell doesn't destroy the evidence and then let the Pats off of the hook like he did last time.
I've seen you mention some kind of a 'master gauge' that apparently reads things 'correctly', whatever that means.
why would a referee in charge of this important task of ball measuring to ensure no unfair competitive advantages in a billion dollar sport be carrying 2 different gauges that read a half pound apart?
also, should we expect various team gauges to synch up with one or another of these, or give a whole spectrum of different readings?
if you have experience with these gauges, what kind of range of disparity could we expect these gauges to read?
The master gauge is a high precision gauge that Exponent used, certified and properly calibrated. This gauge can trace it's calibration back to the National Institute of Standards and Technology, as is commonly done with laboratory gauges.
Both of the refs gauges were measured against that master gauge, and ball pressures were transformed to the master gauge, to enable apple-to-apple comparison. Personally, I this is a little excessive and leads to what I call "torturing the data" - i.e. overly manipulating it. I think they did it to give more numbers...only 4 colts balls were measured, each twice. If you have a way to lump all of the data together, you get 8 measurements and while not ideal, n=8 is much better than n=4.
As to why the refs gauges being off -1) properly calibrated gauges are really expensive. They can be damaged in transport, etc. Ultimately though, proper calibration isn't that important, because as long as a gauge is consistent, it provides no team with an advantage. 2) To that point, the exact psi of the football isn't that important either, so long as both teams footballs are equally inflated (i.e. within 1 psi of each other).
Take the Jets game. It's possible the balls were over-inflated because the refs gauge was way off. If that's the case, the Jets were playing with over-inflated footballs too, not just the Pats. An over-inflated ball is kind of like a wet football - it makes the ball hard to throw, and it makes it hard to catch, but equally for both teams. As long as both teams play with an over-inflated ball, neither team has an advantage.
I think it's a problem that the ref had a gauge that was so far off. But again, as long as he used the same gauge to measure both teams balls, it doesn't matter.
As far as the gauge repeatability, I only skimmed thru that portion of the report. it appears that over the operating range we are looking at, both gauges showed a standard deviation of 0.1 psi...that is, if a ball as a true pressure of 12.0PSI, ~68% of the time the gauge will measure between 11.9 and 12.1 PSI, and 99.999% of the time it will measure between 11.7 and 12.3 PSI.
as for the second bolded -- what you're saying is that if one team has balls at 13 psi, and the other team's balls are all at 12 psi (within 1 psi) then everything's fine, there's no problems, and no rules broken?
the third bolded seems like a pretty tremendous leap, to me, but I'm not an engineer --- you think the guy's gauge was off 4 lbs?
does this really happen?
what happened to 99.999% of the time it will measure between 11.7 and 12.3 PSI
also, you do realize that teams don't share the same football anymore?
but you're willing to assume that pats and jets each played with a 16 psi ball?
2. If the refs pressure gauge was off and he measured them that way, sure.
3. I have no idea...pure speculation on my part. I have know idea how one football ended up being 16 psi.
99.999% between 11.7 and 12.3 - that would be applicable for the non-logo gauge. The logo gauge would read a true pressure of 12.0 between 12.1 and 12.7 99.999% of the time.
pats hating troll frustrated by watching his team get drubbed every year.