Physicists Amir Safavi-Naeini and Oskar Painter describe how they were able to measure quantum motions of 1 femtometer (0.000000000000001 meters) in a micro-scale object. Subscribe: www.youtube.com/subscription_center?add_user=phdcomics More at: phdcomics.com/tv Animated by Jorge Cham: jorgecham.com Featuring: Amir Safavi-Naeini and Oskar Painter copilot.caltech.edu/ Produced in Partnership with the Institute for Quantum Information and Matter (iqim.caltech.edu) at Caltech with funding provided by the National Science Foundation. Transcription: Noel Dilworth Thanks to: Spiros Michalakis, John Preskill and Bert Painter