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 Surprising Applications of the Magnus Effect NASA Continues Crashing Airplanes For Science See the Air Move with This Cool Device Copper’s Surprising Reaction to Strong Magnets Make Your Very Own Alcohol-Fueled Rocket Out Of Empty Water Bottles World’s Longest Running Science Experiment