An air curtain is a machine that blows a controlled stream of air across an opening to the other side to create an air seal. The air curtain, also known as an air door or fly fan, is not the same as ...

Mathmos, the company that created the Lava Lamp, searches for its next huge hit, and it might be onto something with the Air Switch, a line of lamps that are controlled as if by magic. Just a wave of ...