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Currently Browsing: Results for Tag "Ice"

How the Persians stored ice in 400 BC

Yakhchāl (yakh meaning "ice" and chāl meaning "pit") is an ancient type of evaporative cooler.Above ground, the structure had a domed shape, but had a subterranean storage space; it was often used to store ice, but sometimes was used to store food as well.

Pluto may still have a subsurface liquid ocean

Not only is the topography unique and the atmosphere cloudy, but Pluto may even have a liquid ocean.A new analysis of Pluto suggests that the subsurface ocean that gave rise to some of its geological anomalies could still be sloshing around down there.