Not sure what this has to do with gardening, except that I saw this demonstration at the Chelsea Flower Show in May and was quite amazed.
Here you see artist Adrian Grey balancing a very large, heavy stone at an impossibly acute angle on another large boulder.
At first, I thought he was just pretending to be a living sculpture, holding a stone in place.
He stayed in this position for several minutes and then, quite suddenly, stepped away . . . and voila, the stone stayed in place, perfectly balanced on this crazy angle.
His display at Chelsea included the world’s largest stone balancing sculpture – an 11-tonne, 17 ft-tall combination of two granite boulders from Bodmin Moor.
It was just one of the wonders at this year’s Chelsea show, which is always full of surprises.