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 See the Air Move with This Cool Device Wind tunnel testing shows old methods still work How to Make a Fire Tornado Liquid Sand Hot Tub Carnival Scam Science and How To Win Greatest Ever Man-Made Light Show Not To Do Ever Again!