31:44
Life after oil: the new energy alternatives
This program shows how we can replace our dependence on fossil fuels through technological innovation and will power. It discusses the six alternative energies that will free us from dependence on foreign oil: wind power, fuel cells, hydrogen fuel, ...
28:42
Measuring the Earth's Temperature
Starting with temperature records collected over 100 years ago, Measuring the Earth's Temperature takes the viewer from the earliest weather stations and balloon launches, to a network of super weather stations constructed in the 21st century. Highl...