Add Yahoo as a preferred source to see more of our stories on Google. If just by looking at our watch or cell phone we can know, in real time, our heart rate, the number of steps we take, the calories ...

For more than a century, scientists have relied on separate tools to measure the three core building blocks of electricity: volts, ohms, and amps. Each describes a different piece of how electricity ...

Measurement triangle: this quantum metrology triangle shows the relations between the three electrical units volt, ohm and ampere and the involved fundamental constants. Researchers at PTB are ...