Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving.

VOA: special.2009.02.09

Drop several seeds over the surface of the pot and cover with a thin layer of vermiculite, a substance that can hold air, water and nutrients.

VOA: special.2009.04.21

Congress is examining the decision to overlook Boeing, and trade unions and politicians are taking pot-shots at the Air Force and Airbus.

FORBES: Magazine Article

There is no magic pot of money that is going to be created out of thin air to go on top of that.

BBC: Minister Danny Alexander dismisses Trident replacement

My hot pot-loving little sister, who lives with her family in Florida, simply cranks up the air-conditioning to enjoy huoguo year-round.

NPR: Friends, Family and a Feast: A Hot Pot How-To