Erik Max Francis wrote: > rocket motor performance (specific impulse) is measured in > seconds, as it's the ratio of the the thrust (force) to rate of fuel > usage (would be mass divided by time, but weight on Earth is used > instead of mass).
Which is particularly ironic, as you'd think that rocket engineers, of all people, would be acutely aware of the need to avoid confusing force and mass! -- Greg -- http://mail.python.org/mailman/listinfo/python-list
