infocus #29 March 2013 Gold Grains & Black Spherules

Josef Spacek speculates on the origin of the magnetic spherules he discovered whilst searching for gold grains.

DOI: 10.22443/rms.inf.1.91

When all of this happened fifteen years ago I found it exciting and mysterious. Now I'm writing it down it seems rather prozaic. But it still might be interesting, even
inspiring to you.