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 Water Droplets Orbiting Needle In Zero Gravity Frozen Methane Bubbles What happens when you drop a can of Coke into liquid nitrogen? Structural Failure of a Coke Can Induced by Gallium Science Can Make Anything Unbreakable Amazing Self-fuelled Liquid Metal Motor