Electrons in these materials are free to travel along the wire, but their motion in the other two directions is governed by quantum mechanics, radically altering the properties of the material.

An easy upgrade that can make your home smarter is the smart plug. Though they appear to be simple devices, they can do incredible things when connected to other gadgets. (I use them to ...

“The public perception is that ownership of a condo is a risk,” said Jonathan Lickstein, president of the Broward, Palm Beaches, and St. Lucie Realtors Group. “This is all so new to the marketplace.