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Re: cold weld between polished surfaces

For some reason it is easier to see mistakes while reading than while
composing.

Suppose that the area is 10 by 10 cm. Then one might expect
10^22 atoms "per layer" on each surface (assuming the "size"
of each atom 1 angstrem). How much heat should be produced?
Assuming the binding energy is 1 eV per pair of atoms one gets
10^22 eV. This is 382 calories. Right?

It should have been:
Suppose that the area is 10 by 10 cm. Then one might expect
10^18 atoms "per layer" on each surface (assuming the "size"
of each atom 1 angstrem). How much heat should be produced?
Assuming the binding energy is 1 eV per pair of atoms one gets
10^18 eV. This is 0.0382 calories.
Ludwik Kowalski