Science! Cooling your house with wax beady things

Pictured above, a close-up of wax beads encased in plastic shells (see article link). As anthropomorphic as the big one on the right may be, it's even more awesome because it can help maintain heat in your home.
These guys are on a new insulated dry-wall that claims to cut cooling and heating costs. I am not sure the process is accurately described in the article, because it seems like it could potentially work in the opposite direction (i.e. I am trying to cool my home, but these wax beads keep hardening and therefore pumping heat energy back into my home)
I just thought it was awesome that what looks like a black-and-white picture of peas can save you money and cool your house. Science!
