Bill Nye the LYING Guy

     Lately a lot of attention has been placed on the air pressure of footballs.   A subject that normally would bore the crap out of you is now suddenly the most interesting subject for sports and non-sport newscasters to discuss.   All of this because the Indianapolis Colts complained that a football used by the New England Patriots during their Jan 18th "smack down" (that's what you call it when one team beats the other by a score of 45-7), had low air pressure.   The referees were alerted and they brought the ball to the locker room and found it to be 2 psi (pounds/square-inch) lower than the acceptable minimum of 12.5 psi.    People, all over the media, demanded answers as to WHO let the air out of the balls during the game.  Countless talking-heads were brought to the airwaves to find out who measures the pressure, when do they measure it, how do they measure it,  who has access to the balls etc..    Everyone had an opinion on the matter and most pointed their fingers at Tom Brady given he would have the most to gain from doing this.

   But no one thought to blame the most obvious culprit: the cold weather.   Yes, the cold weather.  It does get cold in New England and Jan 18th was no different.  Temperatures started out in the mid 50's and by the end of the game were in the upper 30's.   Coach Belichick even tried to point this out in one of his interviews as a possible cause.

   To clarify this claim, ESPN brought in the TV personality: Bill Nye "The Science Guy".   First thing I must ask ESPN before I go on is this:  Are there no other ACTUAL scientists out there who you could pull in to your shows to answer this question?  After all, MIT is just a few miles from Foxboro.  Would it be too hard to drive over there and ask a physics or engineering professor to get their take on it or were they all too busy?  None the less, Bill Nye was their go to man on this subject and Bill decided to use some props to illustrate what air pressure and temperature do to inflated balls.  But Bill did not use actual footballs, instead he chose to use regular rubber playground balls.   In his illustration he showed that heating or cooling the balls would only change the SIZE of the balls and not the internal pressure.  He even went so far as to say "the ONLY thing to change the pressure in the balls is by inserting a ball needle and putting more air in or taking more air out".  Check out the video here

    But is that the COMPETE TRUTH?   

    Far from it...

    There is a basic equation that is used in the study of Thermodynamics he never discusses:

                   PV  =  nRT

     Where :
                  P  =  Pressure  (pounds per square inch)
                  V  = Volume  of the container
                  n   = # of gas molecules
                  R  = Thermodynamic constant
                  T  = Temperature (measured in kelvins)

     In the case of the balls used by Bill Nye, the rubber is stretchy enough to allow the volume of the

container (V) to increase.  When the ball is heated/cooled, the gas expands/contracts and pushes the walls of the ball out allowing the pressure to stay constant (unless at some point the rubber becomes harder to stretch).  But this is not the case of the football at all which is wrapped in a hard leather made of cows-hide that keeps the ball from expanding beyond its predetermined dimensions.  This means the variable V is actually a constant for a mostly inflated football. 

    So if we make V, n and R all constants (which means we don't add or subtract any air from the ball) we have the following relationship

               P =  kT     (where is k =  nR/V)

    Given this relationship,   as T goes UP .... so does P.   Likewise as T goes down....do does P

    In fact, when the refs checked the pressure indoors (which is what they do) before the game and saw the balls had P = 12.5 psi at a room temperature of 75 degrees Fahrenheit (300 degrees kelvin) the balls pressure would drop to 10.5 psi  at a temperature of 45 degrees Fahrenheit (277 degrees kelvin). 

    This accounts for 100% of  the 2 pound drop in pressure

     Coach Bill was right and Bill Nye was wrong.

     So why would Bill Nye lie about this?  Certainly he knows this equation and how it works.  The answer to that question actually comes at the end of the interview when he mentions he is a Seattle Seahawks fan and says "Go Seahawk!".

     You are so pathetic Bill.  You often lambast Christians for putting their beliefs before their science, but you put something even more lame before your science.  You put your preference on a stupid football game.   You had an opportunity to tell the truth and set the record straight.  You had a chance to exonerate Tom Brady from any mischief on the playing field.   You were the "go to person" to explain a basic scientific principle to the masses but instead you chose a pathetic answer that would keep most Americans in the dark and forever brand a player as a cheater.

    Way to go Bill!   You have destroyed your reputation as a credible person of science for nothing.  

    Our problem in our country is not a lack of air in a football, but instead a complete and utter lack of basic science by those in our sports and also in our media and a lack of integrity of those in the media who the public looks to for answers.  It angers me to see a people rush to judgment without taking into account all the possibilities as to what could happened.  But for too many their motto seems to be:
    
                   SLANDER FIRST... ASK QUESTIONS LATER.