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 How To Make Gold From Mercury Can You Stand On Liquid Mercury? Hydrophobic sand turns to goo in water and magically turns back to sand when dry This Is What Happens When You Dissolve an Antacid On the Space Station Potato guns are cool. Transarent potato guns are awesome Bouncing Water Droplet Falling onto Super-Hydrophobic Surface