Cup That Holds Water but Can’t Hold Mercury Interesting look at a lead cup that can old water but is porous to mercury. This reminds me of the Superfluid Helium: Facebook Prev Article Next Article Experiments Checkout these cool gadgets... Related Posts What a fire backdraft is, and why it can be dangerous Supersonic Baseball Cannon (World’s Fastest Baseball) Soccer Ball Shot from Truck, Interesting Result How To Turn Sand Into Glass Another Non-Newtonian Liquid Experiment Macgyvering a Cement Truck