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OS:Scott F. Hall:Old Indian Gravity Wheel

Lasted edited by Andrew Munsey, updated on June 15, 2016 at 12:55 am.

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Image:ScottFHall Old Indian Gravity Wheel 250.jpg

Yet another gizmo by Directory:Scott F. Hall, the University Art teacher.

This gravity wheel, first announced on Aug. 28, 2007, is composed of metal balls inside slants within wood, which apparently keep the wheel off-balance, resulting in rotation on its axle. He says the rotation speed fluctuates up and down, as the motion switches back and forth from kinetic to overbalance.

Objective : The purpose of this PESWiki page is to report on this phenomenon and to encourage validation, characterization, then implementation into a practical application.

Validation Status : Not yet validated.

Skeptical : "The design was first shown on the second Directory:Chas Campbell Generator video a few weeks ago and is NOT some ancient Indian design. It does not turn by itself." (See Talk:OS:Scott F. Hall:Old Indian Gravity Wheel)


We offer this page as a collection of information about this wheel.


Wheel Design


Old Indian Type Perpetual Motion Gravity Wheel in Progress - the title chosen by Scott when he posted this at YouTube on August 28, 2007. The video shows the work in progress, not yet operational. (YouTube)

On August 28, 2007, Directory:Scott F. Hall wrote:

This new wheel will have 8 tilted channels on each side--16 total. In each channel will be an equal number of ball weights (the old stories from India suggest mercury be used instead). The weights shift freely as the wheel rolls. This shifting-in-channels action causes the edge weight of the wheel to be constantly located well over to the right of the center axis--this should put the wheel constantly out-of-balance and make it want to keep rolling toward that bias. The middle region of wood has been cut out in order to reduce weight in that inactive zone of the wheel but clear plastic will remain in that area--it's not heavy.

Wheel in Motion


Finished Indian Perpetual Motion Gravity Wheel - the title chosen by Scott when he posted this at YouTube on Sept. 1, 2007. The video shows wheel axle held by hand, as the wheel apparently accellerates. (YouTube)

On September 1, 2007, Directory:Scott F. Hall wrote:

Here's my finished ancient Indian-style gravity wheel. It's made with transparent surfaces to allow a view in on both sides. Also, these sides present only two very thin edges to the floor if/when rolled on the floor. That creates less friction, I guess. Sorry about the dark paint—I meant well but it mostly just enhances glare now that I look at it here.

One of you asked me to try out one of my wheels on an axle—easy to do with this wheel by simply inserting a half inch oak dowel right through holes drilled through the middle of the plastic sheets.

This wheel works quite well as an old fashioned overbalancer but the action is odd. It first cycles the ball weights over and over at a medium r.p.m. rate but then it picks up speed and starts going faster like a solid state flywheel. Later, it slows down again to medium r.p.m. with balls dumping slower and then it accelerates again and runs like a flywheel. And so on.

I'll respond here to a couple of statements about me I see in blogs. Yes, I am shooting with my digital still camera—there's not much memory in it, so 21 seconds is what I get. And no, I'm not just a college professor with too much time on my hands. I get paid to teach, to serve, and to do research. Everything I create qualifies as research (i.e. making art, exhibiting art).


Feel free to let us know about any replications. You can edit this site.

Similar Model Didn't Work

Comment submitted on Sept. 5, 2007

It is my personal opinion that Scott Hall is toying

with you. You already caught him in a fraudulent claim on the first two

"gravity" motors, and I am surprised you would give him anymore press.

Years ago, I built a model similar to his current design. It doesn't

work. That one slows down faster than a normal flywheel. His film has

the same problems as the Directory:Perendev Power Developments Pty (Ltd) film, that is, not showing the back

side of the system where he obviously has a drive motor! I can assure

you that in that design, the "center of gravity" stays on the side that

retards rotation.

Inventor: Scott F. Hall

Scott F. Hall is an Associate Professor of Art at the University of Central Florida where he serves as teh Graduate Program Coordinator.

See Directory:Scott F. Hall


list here


See Talk:OS:Scott F. Hall:Old Indian Gravity Wheel

Related Sites

Other Gravity Motors by Scott Hall

The rolling motion of these two wheels was apparently due to a slight incline in his garage floor surface.

Gravity Wheel A


Scott F. Hall's Gravity Wheel Perpetual Motion Machine - the title chosen by Scott when he posted this at YouTube on August 07, 2007. He sets the wheel on the ground and it rolls forward. (YouTube)

See OS:Scott F. Hall:Gravity Motor A

Gravity Wheel B


Bessler ? Gravity Wheel Perpetual Motion Machine - the title chosen by Scott when he posted this at YouTube on August 08, 2007. Device appears to roll on its own by a simple mechanism but is probably due to slight incline in floor.. ('YouTube)

See OS:Scott F. Hall:Gravity Motor B

Chas Campbell


Chas Campbell - Clean Free Power - Video produced by Chas Campbell shows large gravity wheel turning, as an alleged input energy source for his generator system and all the appliances it powers simultanously. (YouTube August 10, 2007)

Image:Bike replica of Chas Campbell gravity wheel 95x95.jpg

Directory:Chas Campbell Generator > Directory:Chas Campbell Generator:Disproved - It turns out that the Australian inventor who made Channel 10 News in July, demonstrating an alleged overunity generator with input of 800 Watts, running 3500 W output, operating a drill, a saw, and other appliances was apparently doing so via a flywheel effect, not because of harnessing some free energy source.


See Directory:Scott F. Hall

See also

Talk:OS:Scott F. Hall:Old Indian Gravity Wheel

Directory:Scott F. Hall

Directory:Gravity Motors

- Directory







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