Take part in Stonehenge experiment: How many people does it take to lift one block?

Heavy lifting: the smallest stones at the prehistoric site weigh about two tonnes REUTERS/Kieran Doherty

Anyone who has wondered what it took to lift a piece of Stonehenge into place has a chance to have a go themselves in a mass experiment.

Experts from University College London are seeking volunteers to help them lift a replica stone using prehistoric technology and brute strength.

Doctoral student Barney Harris, who is organising the event in Gordon Square near the UCL campus on Monday, said he believed it would take 40 to 50 people to lift a single stone, which at one tonne is half the weight of the smallest block at Stonehenge.

Mr Harris said: “We will be using a model of a sledge that might have been used, but other than that it will be people…