Brain Damage: Do Football Helmets Help?
September 5, 2016
Recently, the National Football League is facing a 765-million-dollar lawsuit filed on behalf of more than 4,500 former players regarding the concussions and potential chronic traumatic encephalopathy (CTE) sustained during their careers. Similar lawsuits are underway against the National Collegiate Athletic Association as well as the National Hockey League, and football helmet maker Riddell is facing multiple lawsuits over claims about the effectiveness of their helmets at protecting athletes from concussions.
Foam or Knuckles—Navigating the Illusion of Safety
January 18, 2016
If you really want to understand how gloves contribute to the safety of our athletes, especially when it comes to their brains, take a closer look at the physics behind taking a punch with a bare fist or a glove.
Guns, Knives, and the Hollywood Death Sentence
September 21, 2015
In order to become a successful screenwriter in Hollywood, you need to watch a lot of movies, so you can learn from the screenwriters who came before you, and so you can get a feel for what else is out there and popular today. Unfortunately, this important part of a screenwriter's education is also how Hollywood ends up propagating and recycling incredibly stupid ideas over and over again to the point where the audience just accepts it without question.
Principles Common to Both Qin Na and Ground Fighting
September 30, 2013
A lever is the simplest of machines, which utilizes a rigid bar to rotate around a fixed pivot point called a fulcrum in order to exert force on an object (load). If the resistance or load exceeds the strength of the bar, the bar will break. Biomechanically speaking, the arm is a bar, and when the fulcrum is at or above the joint, breakage can easily occur.
Fight, Flight or Freeze: Trained and Untrained Responses
July 2, 2012
School is out for the summer and it is a normal day, like any other. The sun is shinning, birds are singing in the trees and you’re working part time at the local grocery store, bagging groceries to pay tuition.
The Dojang—A Safe Haven During 9-11 - September 6, 2010
On September 11, 2001, I was employed in New York City at a job that I would soon vacate in favor of teaching martial arts professionally. On that tragic but stunningly brilliant morning, I stood on the corner of Fifth Avenue and Nineteenth Street watching the destruction of the World Trade Center unfold before my very eyes.