quote [ Key point ... the only difference between the two wheel runs with and without the splash plate is the direction of movement. The run with the splash plate is overcoming the opposing force of the wheel/bearing/friction of the outer wheel (that is left over after inner wheel angular cancels out some of it) which is what I did the single wheel runs to isolate/illustrate. ]
All of this "space drive" stuff aside ... the primary motivation for this video is to demonstrate that a rotating wheel of water, with a controlled "leak", presents the kind of unbalanced force that one can only attain via the application of an "outside force", which in this case is Centrifugal Acceleration occurring inside the wheel.
It is very unfortunate that generations of students have conflated "outside force" with "outside of the container" (though most of the time the terms are admittedly interchangeable).
Normally a balanced rotating body that loses some of its mass will encounter an acceleration of its axis in the direction opposite of the flight path of the lost mass (due to the sudden condition of imbalance) but in this system the centrifugal force works with the water still in the wheel to maintain even distribution of mass and prevents imbalances in the same manner as a LeBlanc Balancer
such as are used today in washing machines and some industrial/automotive capacities.
[SFW] [science & technology] ||
[+3 Interesting] ||