Solid-state storage and memory technologies in general use less power than hard disk drives when they are active, and thus there can be power savings if some solid-state storage and memory can be used in a mixed storage technology environment in a way that reduces the spinning time of hard disk drives and thus decreases the power needs of a storage system.

FORBES: Pumping Iron and Keeping Cool

It says it has solid evidence that participation in the programme more than pays for the rewards: active participants are less likely to fall ill and, if they do, they spend a shorter time in hospital.

ECONOMIST: Schumpeter