On: Getting shot by a handgun

[amalcon]

Energy per area? A foot-pound is a unit of energy, analogous to a Joule, defined as the amount of energy required to apply one pound of force over a distance of one foot.

I can see a use for such a unit; it's just not one I've ever encountered before.

[jimmyk → amalcon]

Well, a watt per square meter is a measure of irradiance, so I guess if you integrate that with respect to time you'd get joules per square meter. But I don't know if that gives you anything interesting.

[amalcon → jimmyk]

The use I had in mind was for the energy cost of producing a material of uniform or irrelevant thickness, such as aluminum foil or photovoltaic cells.

[commandar → amalcon]

Foot-pounds is very commonly used to measure firearm projectile energy; I've never seen foot-pounds per square inch before, though.