David Wallman, Paul Pantone
05.03.1999 - BETHESDA, Maryland -- David Wallman deftly slides the dark glass shield into place in front of his carbon-arc machine and tells his audience to step away. "Don't look directly at it from the side," Wallman warns.
He flips a switch. The light is blinding. The machine begins to bubble and froth as 40 amps of current leap the gap between two carbon rods and electrify the sugar water that fills the tank.
Those very special bubbles -- Wallman calls them carbo-hydrogen gas -- will, he hopes, change the world.
When burned, the gas produces much less pollution than gasoline, and it may prove cheaper to manufacture. The former Hewlett-Packard electrical engineer rattles off a laundry list of possible uses by consumers and industry.Energy, Physics, and Soda Pop