Interesting video and I am not surprised that Big D made 5.7 HP. I remember the math James Watt came up with to calculate HP from Physics 101 in college.
Yes, in school, our teacher told us that James Watt himself conducted most of his calculations in horsepower, and it was only later that power began to be measured in a unit named after him.
Quite interesting; and Big D deserves to be included in textbooks. Here's what needs to be added to educational programs. At least personally, I would definitely remember such a video. Then it seemed to me that I would rather pay someone for homework than leaf through a dull textbook. I remember many facts from the show "MythBusters" and little from physics lessons at school, although it was around the same time.
Now my nephew has https://edubirdie.com/pay-for-homework which he asked not to tell his mom about lol. I even envy him a little. In any case, there is a serious lack of such content in educational programs.