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 Man Builds Human Sized Mouse Trap What Happens When Lava Meets Ice? What If Everyone On Earth Jumped At The Same Time? A Weird New Supercooled Material Crystallizes and Glows When Touched History of The Universe in 13,799 Dominoes Think You’re Tough? Try This Feat of Strength!