Nothing is holding it up. So how does it stay standing?
An electric unicycle is never actually upright. It is always falling, and always catching itself — about a thousand times every second.
What looks like balance is really a very fast recovery. That is the same control problem that governs every car on a racetrack, small enough to carry into a classroom in a single case.
This is a free forty-minute presentation for grades 6 through 12. I bring the wheel with its shell removed, fixed to a stand, so students can watch a motor argue with gravity in real time.
| 0–5 | The wheel balances on its stand with nobody touching it. One question: what is holding it up? |
| 5–15 | Feedback loops, built from a student volunteer balancing a broom on one hand. |
| 15–28 | Motors and pulse-width modulation, demonstrated live on the open wheel. |
| 28–34 | Torque curves — the same math a race engineer runs on the timing stand every race weekend. |
| 34–40 | The close, then questions. Every student who wants to handle the hardware gets to. |
Nothing rolls and nobody rides. The demonstration wheel is bolted to a fixed stand. No student equipment use, no waivers required.
Certificate of liability insurance available on request, and I can be named alongside your organization. Background check on file.
I need a standard outlet, a projector or screen, and about six feet of floor space. One of your staff stays in the room, per your policy.
I'm Brian Také. I build racing software in St. Louis — Race Terminal, a live-timing and AI-broadcast companion app, now on Google Play with an iOS release in review. I came to software mid-career, and I've ridden electric unicycles for years.
The program is built to travel: it runs from one case, and the curriculum is designed to be taught to other presenters, so a school or track can keep running it after I've gone.