Good for a slide on maybe intestinal flora?

Just noticed that our little duct tape project (done a year and a half ago) has recently hit 10,000 views on YouTube, so I thought it’ll be fun to rehash it again.
Basically, this ended up being a lot of fun, and (if I do say so myself) our pinball machine was FREAKING AWESOME! Note that all the spacey references were due to us just returning from a visit to the Science Museum in London.
Here are some pictures, and the video at the end is where Hannah and Ben demonstrate its awesomeness.


Well, maybe: bizarre?
More so when you read the bit about “primitive” versus “civilized” women (see bolded text below). Extra surrealness when you learn that this patent was filed in 1965! (not say, much earlier, which was my original guess)
The present invention relates to apparatus which utilizes centrifugal force to facilitate the birth of a child at less stress to the mother.
It is known, that due to natural anatomical conditions, the fetus needs the application of considerable propelling force to enable it to push aside the constricting vaginal walls, to overcome the friction of the uteral and vaginal surfaces and to counteract the atmospheric pressure opposing the emergence of the child. In the case of a woman who has a fully developed muscular system and has had ample physical exertion all through the pregnancy, as is common with all more primitive peoples, nature provides all the necessary equipment and power to have a normal and quick delivery. This is not the case, however, with more civilized women who often do not have the opportunity to develop the muscles needed in confinement.
From Google Patents.