I saw a rather neat photo the other day and I thought I'd share it. And set the explanation as a little quiz!
The photo shows a beaker of water with two ice cubes in it. One is floating at the surface, just as expected. The other, however, has sunk to the bottom. It isn't an optical illusion. There isn't a lead sinker in the second cube. Nor is there any other trickery. The explanation relies on science. What is going on?
BTW There are a few of you out there who will solve this in a millisecond, .... or bloody well should!!
How about letting those who have to get the thinking caps on have their bit of fun?