Modern Marvels 14

Balls (2007)

Environmental Tech (2007)

Environmental technology is examined. Included: blue-green algae is turned into fuel; and methane from decomposing garbage is converted into clean-burning natural gas. Also: carbon sequestration and bioremediation.

Canning (2007)

It's the unsung essential of modern life. Canning is the method of a preserving and packaging food, without which civilization would never have ventured beyond the local food supply. It changed the way the world eats and revolutionized the food industry.

Pumps (2007)

Ice (2007)