ESPN admits temperature can affect PSI as much as 20 %

[thecore762]

No ****, The NFL demonized Brady for no ****ing reason, they should be fined, a Roger should be fired and made an example of after trying to smear Brady's legacy.

 

[DarrylS]

The minister of propaganda made his decision before there were even any "scientific studies".. this was about going after BB and as there was no link to him, they went after #12....

 

[Tony2046]

No ****, The NFL demonized Brady for no ****ing reason, they should be fined, a Roger should be fired and made an example of after trying to smear Brady's legacy.

You're a nice guy. I was thinking more of a medieval type punishment.

 

[RelocatedPatFan]

How many pounds does that translate into? Because if a ball gets too light, it might be tough to throw (like a helium balloon).



and yes, I know it doesn't affect the weight, but you know that's how it was first presented...

 

[mihap]

I'll get it, Just a second. Remove your link so they don't get clicks.

edit: Here's the video. It's a Sport Science episode. But it's 2 years old. I guess they decided to auto-play it after that article since it was sort of relevant to the upcoming PIT/KC game.

That video explains why giants were so bad at Packers game. they were warming shirtless so they ve lost lot of body heat, and hands werent able to grip the ball good. stupid from coaching stuff to allow that.
It wasnt the boat it was being stupid

 

[DaBronxPats14]

BSPN>Irrelevant>Joke!

 

[stinkypete]

ESPN is misinterpreting the ideal gas law. A game-time temperature of 51 degrees decreased football PSI by bout 6%.

The ideal gas law stats that pressure is directly proportional to temperature. Let's assume the temperature differential from locker room to field on the night of the 2014 AFCC game was 20 degrees Fahrenheit. The common perception is that a temperature change of 20 degrees represents a percent change of about 28.5% (this is found dividing the 20 degree drop by an original temperature of 70 degrees, resulting in 0.2857).

The problem is that the ideal gas law does only works in degrees Kelvin. Zero degrees Fahrenheit is not actually zero, it's 255 degrees Kelvin. The mathematics of the ideal gas law fails using Fahrenheit degrees because Fahrenheit is not a proportional scale.

If we assume a 20 degree Fahrenheit temperature differential, then the temperature changed from 326 Kelvin to 306 Kelvin. This results in a percent change of 6.1%. Therefore, according to the idea gas law, the balls should have been 6% deflated by halftime. What does this mean for PSI measure?

Here's a table of the measured pressure of each ball, adjusted to account for the ideal gas law.

Ball# PSI range
1 12.23 - 12.55
2 11.54 - 11.91
3 11.86 - 12.23
4 11.38 - 11.70
5 11.80 - 12.18
6 12.34 - 12.70
7 12.60 - 13.08
8 11.84 - 12.28
9 11.64 - 12.07
10 11.17 - 11.59
11 11.59 - 12.07

Now I am a die hard Patriots fan, but also a math teacher who holds a degree in physics. The science is fairly conclusive that these balls were under-inflated.

 

[RayClay]

I usually don't read ESPN, but they have an article today implying that the world might be round, not flat. Curious how this develops.

 

[Tony2046]

I usually don't read ESPN, but they have an article today implying that the world might be round, not flat. Curious how this develops.

Wow. Well at least the Earth is still at the center of the universe.

 

[Deus Irae]

ESPN is misinterpreting the ideal gas law. A game-time temperature of 51 degrees decreased football PSI by bout 6%.

The ideal gas law stats that pressure is directly proportional to temperature. Let's assume the temperature differential from locker room to field on the night of the 2014 AFCC game was 20 degrees Fahrenheit. The common perception is that a temperature change of 20 degrees represents a percent change of about 28.5% (this is found dividing the 20 degree drop by an original temperature of 70 degrees, resulting in 0.2857).

The problem is that the ideal gas law does only works in degrees Kelvin. Zero degrees Fahrenheit is not actually zero, it's 255 degrees Kelvin. The mathematics of the ideal gas law fails using Fahrenheit degrees because Fahrenheit is not a proportional scale.

If we assume a 20 degree Fahrenheit temperature differential, then the temperature changed from 326 Kelvin to 306 Kelvin. This results in a percent change of 6.1%. Therefore, according to the idea gas law, the balls should have been 6% deflated by halftime. What does this mean for PSI measure?

Here's a table of the measured pressure of each ball, adjusted to account for the ideal gas law.

Ball# PSI range
1 12.23 - 12.55
2 11.54 - 11.91
3 11.86 - 12.23
4 11.38 - 11.70
5 11.80 - 12.18
6 12.34 - 12.70
7 12.60 - 13.08
8 11.84 - 12.28
9 11.64 - 12.07
10 11.17 - 11.59
11 11.59 - 12.07

Now I am a die hard Patriots fan, but also a math teacher who holds a degree in physics. The science is fairly conclusive that these balls were under-inflated.

Assuming you're referring to the deflategate numbers, the science is "fairly conclusive" that the balls were in the proper range.

 

[fightingirish595]

The guy from MIT already debunked deflategate. I'm sure the video has already been showed here, and I'm sure his article on SI has been too. The idea gas law predicts the psi of the ball should have been 11.3. Sure enough that's what the ball was measured at. I don't think that was coincidence

 

[InRodWeRust]

Nothing to see here. Just a bunch of Patriots homers at ESPN making excuses for the cheating Patriots with their made up Ideal Gas Law witchcraft malarkey.

 

[IcyPatriot]

Lowered ratings could affect the truthfulness of ESPN by 20%.