Daniel_

It's just ordinary ice. There's no pressure - it's a cube of ice stood in front of an electric fire (in essence).

There's an air gap between the element and the ice, and so it just melts by radiant heat.

Looks bloody impressive though.

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╔═════════════════════════════════════════╗
Overhead, the Albatross hangs motionless upon the air,
And deep beneath the rolling waves,
In labyrinths of Coral Caves,
The Echo of a distant time
Comes willowing across the sand;
And everthing is Green and Submarine
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