Dr. Albert Crewe: STEM Photography, showing movement of atoms
Channel: MrSilvestris
Date: 2011-08-20

The short video above with Dr. Albert Crewe who was a director of the Argonne National Laboratory (1961--1967) and who later developed 'Scanning transmission electron microscopy' (STEM) which shows the actual movements of  uranium atoms

This is embedded for ' Extreme Cold' on HTML'S MAGIC"
The Barometer, Thermometer, Pressure and Temperature (among other things) 
http://htmlsmagicpages.blogspot.ca/2015/10/the-barometer-thermometer-and.html