Metals with more free electrons, like copper or silver, are the best conductors - they ... graphite is an example of a non-metal which is a good electrical conductor. The centre of most pencils ...

If you can’t answer the riddle, don’t feel bad. Metal conductors usually conduct electricity and heat. Usually, that’s true, but researchers at the Department of Energy’s Lawrence Berkeley ...

As computer chips continue to get smaller and more complex, the ultrathin metallic wires that carry electrical ... find better conductors for nanoscale electronics, but so far the best candidates ...

If electric vehicles were lighter, they would also be more energy-efficient. Not surprisingly, this is a problem researchers ...