LENGTH		!
MASS		!
TIME		!

ENERGY		MASS * LENGTH^2 / TIME^2
POWER		ENERGY / TIME

# doesn't work, but would require major changes to fix properly
# for now, just don't use brackets in dimension expressions
# (note that the unit/prefix expressions use a complete hack
# to enable this, one that doesn't work for dimensions)
# POWER		MASS * (LENGTH / TIME)^2 / TIME