Banknotes
Last week I was in England visiting relatives so had to travel to the Midlands from Gatwick, I didn't need a car so decided to take the train. I haven't taken a train in Britain for about 30 years so this was going to be a bit of an adventure. Collecting tickets booked on line was a bit of a challenge as was reading the underground maps but for a colour blind country boy I did OK. Apart from the proliferation of fast food establishments at major train stations, the thing that struck me most was the speed of the trains. Euston to Rugby in under an hour seems pretty quick to me. I've mentioned banked tracks many times in physics lessons but this was my first experience of travelling on a train the leans into the corners. I was dying to do some simple experiments with cups of water and pendulum bobs but decided against it. I bet you could do some interesting stuff with an ipad.