I like to think of efficiency as a ratio, or fraction. Most often the input value of the equation is time or money. Efficiency is something almost everyone strives for in some aspect of their life.

Rhett is a DC based executive coach who covers entrepreneurship. Does that efficiency rate seem low for an average customer service agent? Keep in mind that humans aren’t machines—they need ...

The efficiency of a device is a measure of how much of the input energy appears as useful output energy. The more energy a device wastes, the less efficient it is. useful output energy refers to ...

The most significant factor is the choice of laser-cooling medium. The ideal cooling efficiency (equation (1)) shows that there is an advantage if an optical refrigerator is pumped with lower ...