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Melvin Dummar says a grand conspiracy has denied him his portion of billionaire Howard Hughes' vast estate. Many consider Dummar to be a fraud but an in-depth investigation by Gary Magnesen has apparently shown Dummar to be a good samaritan who saved Hughes from certain death. Both joined George Knapp to discuss why Hughes was in the desert, as well as those who schemed to deny Dummar and several institutions of their rightful share of the Hughes estate. In the first hour, veteran music journalist Joel Selvin talked about the notorious Rolling Stones Altamont concert of 1969, considered by many to be rock’s darkest day.

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Hydrogen Fuel Cells

Hydrogen Fuel Cells

Fuel cells are essentially inexhaustible batteries -- as long as they're supplied with fuel, they don't lose charge. Within a fuel cell a simple electrochemical process takes place that converts hydrogen and oxygen into electricity, with heat and water as the only emissions.
Every fuel cell consists of an electrolyte membrane sandwiched between two electrodes: a positive electrode called an anode and a negative electrode called a cathode. Hydrogen (or hydrogen-rich fuel) is passed over the anode where a catalyst splits it into ions and electrons. The electrons cannot pass through the electrolyte material and instead travel around it via an electrical circuit to reach the other side of the cell. This flow of electrons is electricity.
The following U.S. Department of Energy animation illustrates how a fuel cell uses hydrogen and oxygen to produce electricity.
*This animation requires Macromedia Flash Player(1) to be installed on your computer.

1. http://www.macromedia.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash

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