How do you explain that the gold nanoparticles are penetrating through 100s m of rock and soil and getting stuck to surfaces?

Van der Waals forces are much stronger than any inertial forces that could make the gold (or any other metal) nanoparticles to become "airborne" in the geogas flow (about cm/day). What makes these...

01 January 1970 6,005 2 View