Wednesday, 14 December 2016

Floating box

An aluminium foil box floats in a tank of sulphur hexafluoride, a gas which is about five heavy as air.


Demetrius said...

Was Sulfur Hexafluoride (Sully) the lead guitar for a rock group called "The Alchemists"? I think their best hit, "Pop A Pill A Day" got to number 47 in the charts in 1964 during the week of the General Election.

A K Haart said...

Demetrius - too heavy man.