It's a lot like solar cells
They're nice and seem free, but they cost more to produce and maintain than they actually provide.
(
Syncubus Yarr! Ye'll be walking Planck's Constant! [GMT-5],
Sat 17 Dec 2005, 2:42,
archived)
Except that solar cells do genuinely produce pollution free energy
and these ramps just burn up extra oil..
(
Londingham .,
Sat 17 Dec 2005, 2:43,
archived)
I know I've already said this, twice, but
the oil has /already/ been burned, so this device recaptures energy that would otherwise be wasted. Sorry.
(
jaldo_dron a delicate balance,
Sat 17 Dec 2005, 3:04,
archived)