Teachers from the COSMOS program visit the Sandbox in the Columbia Electrical Engineering Department. Pictured from left to right are Genieve Fleming, Manav Kohli, Kristian Breton, Martina Choi, Jason Econome, Richard Foster, and Abhishek Adhikari.
A visible-spectrum phase modulator (the ring at the center of a radius of 10 microns) is much smaller than a grain of pollen of the morning glory. Photo credit: Heqing Huang and Cheng-Chia Tsai/Columbia Engineering
