Evidently this is what my students do with leftover dry ice, water, & too much time on their hands. 🙂 #teamcohen http://pic.twitter.com/o02X6kELp7
— Brian Cohen (@profbdcohen) August 18, 2016
Evidently this is what my students do with leftover dry ice, water, & too much time on their hands. 🙂 #teamcohen http://bit.ly/2b1WbUo