Degrees of Freedom

January 22, 2020 Sean Franklin 0

A degree of freedom is the number of directions in which something is free to move. You may be thinking of the three directions, but in this case you would be thinking wrong. The maximum number of degrees of freedom of a rigid body is six.

Totally Scientific Reasons You Need a New Sword

December 11, 2019 Sean Franklin 0

When I published “Do Swords Really Wear Out?” I was accused of robbing people of the ability to justify sword purchases. Fear not, I am here for the community. Just in time for Christmas, here are five totally valid scientific reasons you can use to justify the new sword purchase.

Myth of Knees Over Toes

November 13, 2019 Sean Franklin 0

A common piece of advice you may have heard is to never let your knee move forward beyond the front of your foot. This is well-meaning, but not actually true.

It’s Not “All in the Hips”

September 18, 2019 Sean Franklin 0

A colloquialism associated with generating power is “it’s all in the hips”, but this is a little bit misleading, as the hips themselves aren’t really the source of the power.