Your Mega-Reading-Contraption is way too dim man…it needs more power. Power is a measure of how quickly electrical energy gets changed into a different type of energy, like heat or light.

Puerto Rico experienced a massive power outage beginning at about 5:30 a.m. local time Tuesday morning. "While the cause of ...

Purchasing power is the value of a currency in real terms—based on the goods and services each unit can be exchanged for. Remember when you could buy two Mcdonald's Big Macs with a $5 bill in 2000?