Beyond molecules and atoms, how far down can we see below the wavelength of visible light? What is the smallest possible scale in the universe? Frog animation by Matt Burns Facebook: http://www.physicsgirl.org/facebook Twitter: http://www.physicsgirl.org/twitter Updates: http://physicsgirl.org/ Help us translate our videos! null Thanks to Kyle Kitzmiller for filming. Image Credits: SEM Images: Dartmouth Electron Microscope Facility Infrared Images: Courtesy NASA/JPL-Caltech LHC Images: CERN Historical Particle Collider: INFN-LNF www.lnf.infn.it Molecule images: IBM Atom Images: Aneta Stoldona; APS Music: Michael Miller, Kevin McLeod - "Carefree," YouTube - "On the Bach"