Researchers Made 25-Tonne Boulders They Can Move by Hand, Giving More Insights Into Ancient Engineering

These giant blocks give more credence to theories that ancient engineers were masters of balance and leverage.

from gizmodo http://www.gizmodo.co.uk/2019/04/researchers-made-25-tonne-boulders-they-can-move-by-hand-giving-more-insights-into-ancient-engineering/