When a cat doesn't do too much activity, it starts accumulating energy and anxiety. (catfooddispensersreviews.com)
The integral of (Energy in from the sun less energy out to space) is the change of accumulated energy in the climate system. (theinconvenientskeptic.com)
«Perhaps it is therefore that vampire squid return to a gonadal resting phase after spawning, and presumably start accumulating energy for a new reproductive cycle.» (sciencedaily.com)