If your energy bill jumped this summer and your sunniest rooms still feel like ovens, you are not imagining things. You are also not alone. And that is exactly why a simple product called static-cling ...

sounds like sheer magic: Huge sheets of “thermally-bonded polypropylene filaments” hang from the ceiling at an old Austrian salt factory; and, as people walk between them, their own static charge ...

tinted glass in the house. window dimming by dark film. hands apply tint film to the window. tint film on sky background. sky view through tinted glass Petr Smagin Petr Smagin/Getty Images/iStockphoto ...

Woo-hoo! Fancy design talk! Magical as the installation might be in person, the mystery behind it is actually commonplace: The normal word for “thermally-bonded polypropylene filaments” is ...