"Robert Clark" wrote in message
om...
While it is not economically feasible to store hydrogen as an
automobile fuel *now* I wouldn't rule it out even in the short-term.
Solid metallic hydrogen is close to being achieved:

Hydrogen metal on the horizon.
10 April 2002
"Scientists have long expected solid hydrogen to become a metal when
it is compressed, but so far electrical conductivity has only been
detected in liquid hydrogen. Now an experimental study of solid
hydrogen at pressures up to 320 GPa predicts that it will become
metallic at a pressure of 450 GPa


These are done in diamond anvil cells. Total volume is about 1 mm^3.

Don't be stupid.