Professor Tim Gay goes back to the chalkboard to show how air drag affects distance when kicking a football.

Professor Tim Gay uses vectors to predict the direction of a roll-out pass.

Professor Tim Gay conducts a test to see if a punted footballs hang time increases when its filled with helium.

Professor Tim Gay squares off with a Husker lineman to show that every tenth of a second counts in football.

Professor Tim Gay demonstrates that even rocket scientists arent always perfect.

Newton's second law of physics comes into play as Professor Tim Gay adds up the force behind a tackle.

Professor Tim Gay hammers home how helmets keep players heads from harm.

Professor Tim Gay always makes time to think about the physics of football; in this case, running speed.

Professor Tim Gay shows that bigger isnt always better in football physics.

Professor Tim Gays uses Newtons Laws of Physics to determine who takes the hardest pounding on the football field.

Professor Tim Gay finds the physics formula for a fabulous forward pass.

Professor Tim Gay thinks small when he explores atomic physics at a football game.

Professor Tim Gay calculates the formula for scoring touchdowns.

Professor Tim Gay proves that theres very little room for mistakes when passing a football.

Professor Tim Gay puts his momentum where his mass is to demonstrate Newtons third law of physics.

Professor Tim Gay gets a kick out of the physics behind an 80-yard punt.

Using Newtons second law of physics, Professor Tim Gay proves that The Force is strong with the Cornhuskers.

Professor Tim Gay digs into the science beneath the turf on Tom Osborne Field.

Professor Tim Gay calculates the amount of energy that the Cornhuskers burn in a typical game.

Professor Tim Gay collides head on with the physics of making a tackle.

Professor Tim Gay compares the speeds of sound waves, light waves and fan waves in Memorial Stadium.

Professor Tim Gay tackles the laws of physics that govern football fundamentals.

Professor Tim Gay teaches science to a classroom of more than 75,000 students.

Professor Tim Gay demonstrates that even rocket scientists arent always perfect.

Professor Tim Gay explains the physics happening inside a football helmet.