Let There Be Light

As part of the re-roofing/home improvement, there's now a light tube (a self-contained skylight) called a solatube at the top of the stairs in my home. It's just an unbelievable difference. I'm convinced I could light my entire home with solatubes and natural light refracted through these structures.

Lo, the power of refraction. Two sets of before-and-after photos: