The 555 timer chip works by distributing electric current between eight different pins, typically arranged in a rectangle with four on each side. Electricians connect the pins to a circuit to produce timed events in seri... More »

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To repair chips in crystal glass, start by taping a small piece of coarse sandpaper onto the eraser of a pencil. Wet a soft cloth with water, and wipe the chipped area of the glass to help reduce friction while sanding. ... More »

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While there are conflicting origin stories for the chocolate chip cookie, the inventor, Ruth Graves Wakefield, has never been in doubt. In the 1930s, she created her recipe while running a tourist lodge with her husband ... More »

You can find general information on 555 timer projects by visiting 555-Timer-Circuits.com. The website offers project instructions, wiring diagrams and ideas involving the 555 integrated circuit. More »

www.reference.com Home & Garden Home Maintenance Electrical

A Utilitech digital timer can be programmed and used to turn on lights and other home appliances at specific times. Some timer models provided added functionality by turning one wall outlet into two outlets. More »

www.reference.com Home & Garden Home Maintenance Electrical

Wiring a timer on a bathroom fan can easily be completed in under an hour. Turn off the electrical circuit at the main breaker box before beginning. Test with an electrician's wire tester to make sure the power is off. More »

www.reference.com Home & Garden Home Maintenance Electrical

Methods may vary, but to use a digital timer such as the one featured on High Yield Lighting's website, begin by charging the battery fully in a power outlet for 12 hours. You also need to set the current time of day bef... More »

www.reference.com Home & Garden Home Maintenance Electrical