The combined 2% rewards rate — 1% when you make a purchase and 1% when you pay it off — is among the best on any cash-back card, especially for an annual fee of $0. Many or all of the products ...
Zaps of static electricity might be a wintertime annoyance, but to certain scientists, they represent an untapped source of energy. Using a device called a triboelectric nanogenerator (TENG), ...