I’m sure you’ve had your cell phone go off in class before or maybe you brought your laptop to take notes. Well, Proffessor Mullen, a physics professor at the University of Oklahoma is pretty strict when it comes to using gadgets in class; NO GADGETS ALLOWED. The video after the break gives a peak of what happens when you break his rules.
“This is just liquid nitrogen, so it alone won’t hurt the computer. But this will.”
