These two concepts, horsepower and torque, are measured in the U.S. using curious units that, over the years, we've come to generally understand. After all, they've been in common automotive parlance ...

To keep things simple, let's just say watts and volt-amperes are synonymous. And because the supply voltage to your home is rated at 240-volt/120-volt, sometimes 120 volts is used in the math, and ...

A new thermogalvanic device uses nanoparticles to control ion flow, allowing it to convert waste heat to electricity and store the energy without external batteries.