How does a change machine know what bill it is?

Answer U.S. dollar bills have multiple security features that are recognized by the optical and magnetic sensors in a change machine.Ultraviolet and Fluorescent ScanningWatermarks and coloring on bills sh... Read More »

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How does a vending machine know you have given the correct amount of change?

As coins are entered into a vending machine, they pass electromagnets, disturbing the energy field created by the magnets. Depending upon the size of the coin, the energy field will be affected dif... Read More »

Does any one know what year a easy washing machine company wringer washing machine model 102-wp came out in?

What kind? Friable Asbestos? Yes. Non-friable Asbestos? Not so much, but still not great. Vermiculite? It may or may not contain asbestos. Fiberglass? Mice love it, and it can make dust, and it... Read More »

Want to know where to bundle your phone bill cell bill internet and direct tv?

You may want to check with your local telephone company, normally Verizon or AT&T as they would be the most likely to have have a bundle as they are large wireless providers in the U.S. Directv do... Read More »

Does anyone know the name of this Bill Cosby cartoon?