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This is totally addictive!

The Manual Works Prompter is a tiny standalone, no-install HTML Application which turns any PC into a 'prompter' just like the TV, radio, and public speaking 'pros' use.

A solar cell is a device for converting energy from the sun into electricity. The high-efficiency solar cells you can buy at Radio Shack and other stores are made from highly processed silicon, and require huge factories, high temperatures, vacuum equipment, and lots of money. If we are willing to sacrifice efficiency for the ability to make our own solar cells in the kitchen out of materials from the neighborhood hardware store, we can demonstrate a working solar cell in about an hour.

have fun through searching through the decades for your favorite music; maybe in spanish, but still you can find your way around