Sun
Winters are pretty dark here, some days I'm not sure the sun even rises. So, I built this lamp. It's on a timer, and functions to keep the circadian rhythm intact.
Progress and innovation let us build a world that departs increasingly from the environment for which we evolved. To resolve the mismatch between our genetic disposition and the world we build, we must either adapt our environment or adapt ourselves.
Also, all hail Bukminster Fuller for the geodesic sphere design at the heart of this device.