Science of NFL Football - The Pythagorean Theorem

submitted by: nsf
"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. NBC's Lester Holts explores the path a defender must take in order to tackle a ball carrier, and how this distance - called the "angle of pursuit" - can be calculated by using the Pythagorean Theorem to find the hypotenuse of a right triangle, and the distance of a defender's angle of pursuit. Dr. John Ziegert of Clemson University...

Science of NFL Football - Projectile Motion & Parabolas

submitted by: nsf
"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. In this segment, NBC's Lester Holt looks at the science of projectile motion and parabolas with the help of former NFL punter Craig Hentrich. NSF-funded scientists Professor Jim Gates from the University of Maryland, Professor John Ziegert of Clemson University, and Professor Rhonda Hughes from Bryn Mawr College, explain the...

Science of NFL Football - Kinematics

submitted by: nsf

In this segment, NBC's Lester Holt and former NFL running back Deuce McAllister explore kinematics on the playing field. NSF-funded scientists Tony Schmitz from the University of Florida and John Ziegert of Clemson University explain how the kinematic concepts of position, velocity and acceleration can be used to define how a running back moves.

Science of NFL Football - Geometric Shapes

submitted by: nsf
"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. In this segment, NBC's Lester Holt looks at the role geometric shapes play every time an NFL quarterback throws a pass. With the help of former NFL quarterback Joey Harrington, Professor Tony Schmitz of the University of Florida explains why the shape of the football allows quarterbacks to be so accurate when throwing the ball to their...

SDSU Geological Sciences Webinar - Yehuda Ben-Zion

submitted by: tcarrasc
Rock damage, Earthquakes and Faults in the Brittle Crust Yehuda Ben-Zion Department of Earth Sciences University of Southern California, Los Angeles We review observational and theoretical results on seismic radiation and brittle rock damage in two complementary problems. (i) Rapid damage generation by sources with sufficiently high amplitude and subsequent gradual healing. (ii) Effects of brittle rock damage within the source volume on the seismic radiation to the bulk. (i) Analysis...

Logic Nature and the Town Council Meeting

submitted by: hsrikm
Discussion is ensued from a parallel constructed between ‘face’, a composite representation of emergent structure and function and an egg representation constructed mathematically and divided into a blunt or retarded end and a pointed or accelerated end. A parallel to the blunt end of the egg is made to the creation of cognitive spaces, the pointed end to conflict and aggression in confrontation with the blunted end. it is concluded that within human library communications a better...