Kapilux glass, manufactured by German firm Okalux, contains tiny tubes to reduce glare and transmit light deep into a room. It was recently used on Steven Holl’s Cité de l’Océan et du Surf in Biarritz, France.
Build a Simple Solar Heater This low-cost plan lets you turn any south wall into a source of free heat. [Find out how!] By Gary Reysa Illustration by LEN CHURCHILL