All Archimede houses have an underfloor cavity that is always pressurized with warm air, and a series of tiny holes punched next to the outside wall encourages a slow diffusion of warmer air that prevents condensation and fungus development.

FORBES: Arctic Refuge On Stilts--Kangiqsujuaq, Quebec

Parts of inexplicable circles, drawn or incised on the light-colored wall behind him, give an air of happenstance to his position.

NEWYORKER: Art

Maybe a primal thrill at getting something out of thin air explains Wall Street's infatuation with cash payouts.

FORBES: Magazine Article

Beautiful Lumangwe, a wide wall of water that thunders into the Kalungwishi River filling the air with fine mist, looks like Victoria Falls in miniature.

BBC: Escaping modern life in Zambia��s north

Perhaps Wall Street will slide slowly downwards, letting air gently out of the bubble.

ECONOMIST: Trapped by the bubble

Tyres hang on the wall, rusty chains coil around the place and a faint smell of oil permeates the air.

BBC: Iowa Republican votes still up for grabs

Warm air at ground level enters via tangential inlets around the base of the wall.

ECONOMIST: Harnessing artificial tornadoes as an energy source

"Although these programs have an air of goodness, " he wrote in the email reviewed by The Wall Street Journal, "Google is in fact using this program to develop a grass-tops network" of small businesses they can "activate to their defense" if the FTC tries to bring a case.

WSJ: Behind Google's Antitrust Escape

Cavity wall insulation slows down the rate at which warm air escapes your property, keeping each room of your house warm even when it is bitterly cold outside.

FORBES: How To Winterize And Heat Your Home For Less

At one of Gore's main rivals, Associated Air Center in Dallas, the company keeps track of its sales with little flags stuck into a wall-size world map outside its sales office.

WSJ: Demand Soars for Firms That Fit Out Private Jets