cant see the op clip here
some thoughts on what is posted.
electric/magnetic forces should be able to be measured using instrumentation
In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes the case for hollow or open-shaped objects, such as a horseshoe. In the case of a distribution of separate bodies, such as the planets of the Solar System, the center of mass may not correspond to the position of any individual member of the system.
http://www.ask.com/wiki/Center_of_massin my work we also use words like electic or magnetic to describe a feeling, that may be imo more aptly said to come from the center being effected.
hence we might say it feels magnetic or electric, in order to help a person associate a previously unknown reaction with a feeling that they may have felt before.
They have a different feel from push and pull with muscle.
which would be very natural if one has a keen sense of center how to project it, move it, or empty it.
it does and should feel very different enabling results that can not be achieved any other way, since the bodies response to this is below the conscious level of awareness, one may indeed feel like they'er being pulled or pushed with something that does not come from muscular force, or depending on level of practitioner with little to no contact.
it is interesting to note that one of the people I was working with here "beijing" remarked "what about the qi" as we where working on some things and I was trying to use a common terminology to explain events, the idea that by changing the body shape determined whether the center is being projected out or emptied.
the same things where able to happen using different terminology to describe the events. I dont feel it negated the idea of "qi" just helped to enable the understanding
of processes by which some effects could be caused by.
interesting discussion