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 Monster magnet meets monster magnet The difference between Gas, Ethanol, E85, and Kerosene These tire blowouts are so dangerous they have to be kept in a cage 3 of the Biggest Experiments Ever Stacked Ball Drop Experiment Footage Of Russian Experiment Shows Dog ‘Breathing’ Underwater