Gold accumulating on quartz under an electron microscope. Credit: Dr. Chris Voisey The geologists' findings contrast with a ...

After the experiment, the quartz samples were examined under a microscope to see if any gold had been deposited. “The results were stunning,” says study co-author Professor Andy Tomkins.

Dr. Einthoven’s device records the fluctuations of this current by means of two wires of quartz, so fine that they are invisible even under a microscope, unless thrown into relief by light ...