Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: energy flows

I implied, and hereby state explicitly, that energy is a conserved quantity
and flows according to a local conservation law:
change(stuff inside boundary) = -flow(stuff across boundary)
This is one of the most elegant and most useful principles of physics.

Energy of a system can be increased or decreased, but it does not "move".

It is NOT "stuff"

Saying that it is certainly not "elegant".


Jim Green
mailto:JMGreen@sisna.com
http://users.sisna.com/jmgreen