I dived in thinking I know this stuff we all know about Archimedes and so on. In actual fact there were others I didn't know about, The graphics were super quality and very realistic. There was a model maker involved who copied some of these ancient devices dramatically demonstrating they did indeed work for real. The other thing that appealed to me was the connections shown between scientists and their invention. It's great value too you get many hours of amazing video to watch. I 100% recommended this video.