One of two types of electrical flow, direct current (DC) predates alternating current. Unlike alternating current, direct current flows in only one direction. Current is measured in amperes, frequently shortened to "amps," which is the amount of...

An electric current that flows only in one direction. As a consequence it has a generally even flow and is not transmitted in pulses. See also: ALTERNATING...

The first commercial electric power transmission (developed by Thomas Edison in the late nineteenth century) used direct current. Because of the advantage of alternating current over direct current in transforming and transmission, electric power...

The following recalls have been announced:_About 4,100 Pirates of the Caribbean sleeping bags, made in China and imported by Hoop Retail Stores LLC, because the surface paint on the sleeping bag's zipper pull has high levels of lead, which is toxic if ingested by children....

Q: Does my cell-phone charger consume electricity if I leave it plugged in to the wall when it's not charging the phone?A: It probably doesn't consume a significant amount, unless you have a really old cell phone. You may have heard that "all power adapters...

Some dangerous chemicals could be banned from the European market and about 30,000 substances used in everyday products ranging from detergents to toys will have to be registered in a central European Union database under a law approved Wednesday.The European Parliament passed the law _...

Intel, IBM and other chipmakers vie to come out with new chip designs that crank up the speed of their chips and keep power use down. With them, chip design is king. Not so for Diodes DIOD. The main value of its chips is in...