The parabola-shaped solar heaters have grown in popularity in Afghanistan as the country is in the grip of a chronic energy crisis. 2 Abbas uses a simple design that resembles a satellite dish.

This home, with its one-of-a-kind 19-foot double parabolic arch roof, sits past a private pond, hidden on a hill and behind a line of trees off of Linglestown Road near Central Dauphin High School ...