Originally Posted by
Tomo_Ishi
Wait a sec, 2,000 - 25,000 Watts? "Power" is an odd unit to use. Joules per second right? But I really don't understand the nature of the value.
... Is it energy expended on the pedal surface? Then wiki tells me 1N is about one apple (on earth obviously). It's like lifting 2000 apples in a second. ... that shows I shouldn't cheat on Shelly. I mean imagine what she can do with em apples. ...
http://en.wikipedia.org/wiki/Cycling_power_meter
"A cycling power meter is a device on a bicycle that allows measuring of the power output of the rider. Most cycling power meters use strain gauges to measure torque applied, and, combined with angular velocity, calculate power."
"Crankset power meters measure the torque applied to both pedals via strain gauges positioned within the crank spider. A calculation of power is derived from the deflection of the strain gauges and pedaling cadence."