Where most see only chemical energy stored in a bale of hay, Dr. Hornschnabel, perceiving the potential energy locked in all these round bales just lying around at altitude, wonders. What if they could somehow be rolled to sea level? Of course, there is the small matter of the Rocky Mountains. A mere detail!
To date, the good Doctor's experimentation has yielded only three badly- damaged foreign cars and a few very frightened motorists. So be careful as you drive our highways, and remember that this is all for the advancement of science.
How Do I?