I *so* want a go on this! It’s The Falkirk Wheel, and possibly the most sedate fun-fair ride there is!
For those wondering what on earth it is, check out this wikipedia article, but basically it’s a lift for connecting together two canals! Using the basic laws of science, it rotates itself through 180°, lowering any canal boat in the upper chamber into the lower canal and vice-versa, all in about 4 minutes and using the same amount of electricity as it takes to boil 8 kettles. Very cool, and about Â£8 a ride 🙂
And for those really interested, a slightly less high-tech version (by modern standards!) has actually existed since 1875 – the Anderton Boat lift.