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 WeedEater Battle in Slow Motion The Leidenfrost Effect – Maze A Weird New Supercooled Material Crystallizes and Glows When Touched Stacked Ball Drop Experiment Dyson Vacuums Will Suck Up Fire Supersonic Baseball Cannon (World’s Fastest Baseball)