Soooo... How does this process work?
Burn a fire under it for hours and then bang on the cracks that form? I've never seen this before.
Soooo... How does this process work?
Burn a fire under it for hours and then bang on the cracks that form? I've never seen this before.
I suppose differential heating produces stresses inside a rock. When you introduce an imperfection the whole thing shatters the same way a car door window shatters into a million pieces.
I suppose differential heating produces stresses inside a rock. When you introduce an imperfection the whole thing shatters the same way a car door window shatters into a million pieces.
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