Explosive transit store

Cornwall used to be a miner's place. The coastline is littered with the remains of stone buildings, chimneys included: the outline of these buildings rising on the horizon is so iconic that they have become a symbol of Cornwall.

They contained-part of the machinery needed for mining, they explained. Where "mining" translates into: digging almost by hand, one charge of explosives at a time, miles of underground tunnels, all the way under the sea and pumping out the water that the tunnels would fill if there wasn't a whole complex mechanism of compressed air, vacuum cleaners, surface pumps, things.

In the silence of the landscape, what remains of an extinguished mine still makes a consistent noise.