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 NASA Continues Crashing Airplanes For Science Aerogel and how it reacts with water Watch Atmospheric Pressure Savagely Crush A Steel Barrel Splitting 10 Decks of Playing Cards with Hydraulic Press Stacked Ball Drop Experiment A Weird New Supercooled Material Crystallizes and Glows When Touched