Justin Jacoby Smith is an organizer, web geek, Buddhist, and poet.

do more with less battery

At a fixed computing load, the amount of battery you need will fall by a factor of two every year and a half," says Jonathan Koomey, consulting professor of civil and environmental engineering at Stanford University and lead author of the study. More mobile computing and sensing applications become possible, Koomey says, as energy efficiency continues its steady improvement.

Will "Koomey's Law" of battery life supercede Moore's Law?