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 Carbon fibre is insanely strong…until you… Weird – Cockroach Leg Stimulated With Music Bouncing Water Droplets On A Superhydrophobic Nanotube Array Gallium Spoon Melts In Hot Water Top 5 Weirdest Experiments Fire Tornado in Slow Motion