This is extremely cool -- it zooms into a concrete block to the level of atoms.
posted by arvana 1 decade 6 years 2 months 1 week ago • 2,156 viewsScience Stuff
Created: 1 decade 6 years 5 months 2 weeks ago
Updated: 1 decade 3 years 6 months ago
Views: 2,103
Updated: 1 decade 3 years 6 months ago
Views: 2,103