Who needs aliens, when you’ve got ingenuity, common sense, a grasp of physics and a willingness to experiment? Not W. T. Wallington.
The annoying reliance of Mr Wallington’s website on embedded mpegs means that, at least on my version of Netscape, his site is a bit flaky. It worked better on IE. But he’s a hero. Too many people, faced with Stonehenge or the Pyramids, just make a lazy leap to a supernatural explanation. If more people cast themselves enormous concrete blocks and quietly got on with working out how to build their own copies of ancient monuments, we’d understand rather more about early building techniques.
Just because they didn’t have JCBs, it doesn’t mean the ancients were stupid.