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 Beautiful Chemical Reactions Liquid Oxygen Experiment – Melting Pop Can History of The Universe in 13,799 Dominoes 5 Crazy Science Stunts, You Won’t See At School Exploding Ball Bearings in Slow-mo How to Defuse a Shaken Soda Can