Episode 23: Torsion

What is torsion and what is torque? Let's try to figure it out. And don't miss the Magic Intermission!

[tychonius]

Long shaft screwdrivers and average length screwdrivers exert identical amounts of torque. There is no torsion benefit to the long handle unless it's perpendicular to the axis of rotation (like a ratchet or a wrench). As they say while screwing, it's not the length, it's the girth of your shaft that matters.

[Tristan-EngRundle]

Also, the SI unit for torsion is not Pa. The interview guy earlier said that the units to measure torsion is the angle of twist. Which (if you are measuring torsion as deformation) is more correct than using Pa as a unit