When training for space flight, astronauts are subjected to a ride in an aircraft that (temporarily, at least) simulates the effects of zero gravity. Since the human body isn’t accustomed to rapid changes in g-forces and weightlessness, a common reaction is the rapid and spectacular voiding of one’s stomach contents. Hence, the aircraft used in training, regardless of the make and model, is dubbed the “Vomit Comet.”
Now picture motorized ground transportation where the driver moves independently from the vehicle; in other words, when the vehicle stops, the rider keeps moving. Ditto for acceleration, which would be enough to induce motion sickness in the bulk of us. In case that’s not enough, you can even do spins (called “gerbiling”) and death rolls, which virtually guarantee that partially digested food will soon be shooting from your nostrils. Welcome to the world of the diwheel.
We have no idea why you’d want to build a motorized diwheel, but an Australian engineering student named Sam Hart did just that. Enjoy his antics in the video below, and rest assured that we won’t be road testing one anytime soon.