# Can anyone identify this vehicle? **URL:** \ **Category:** Factual Questions\ **Created:** [January 4, 2010, 2:35am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569 "2010-01-04T02:35:30Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![PlainJain](https://avatars.discourse-cdn.com/v4/letter/p/5daacb/32.png) [@PlainJain](https://boards.straightdope.com/u/PlainJain)\ **Post date:** [January 4, 2010, 2:35am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/1 "2010-01-04T02:35:30Z")
At around 3:45 [in this video](http://www.youtube.com/watch?v=Cz8j8EC9Q0c) (work safe) you can see someone riding what appears to be a motorized unicycle. But haven ridden a unicycle myself, I don’t understand how you would keep your balance without pressure on the pedals. Also he appears to brakes on the down side of the ramp while his arms are in the air. Can someone identify this contraption for me? At these kinds of events I would think there are a lot of home-made things around, but this one seems to have a factory made fender. Thanks. ---
**Author:** ![CC](https://avatars.discourse-cdn.com/v4/letter/c/f1d935/32.png) [@CC](https://boards.straightdope.com/u/CC)\ **Post date:** [January 4, 2010, 2:47am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/2 "2010-01-04T02:47:15Z")
It looks like a “simple” motorized monocycle. If the wheel is turning at even a medium speed, the gyroscopic effect will keep it steady. You wouldn’t have to have your feet on the pedals to keep it standing up or to move it. I imagine that your feet on the pedals essentially keeps you in the upright position, however, providing some resistance for the motor. It’s pretty cool, I’d say. jAnd I don’t know why a home inventor couldn’t use a nice, factory made fender for his gizmo. ---
**Author:** ![Oslo\_Ostragoth](https://avatars.discourse-cdn.com/v4/letter/o/a9a28c/32.png) [@Oslo\_Ostragoth](https://boards.straightdope.com/u/Oslo_Ostragoth)\ **Post date:** [January 4, 2010, 6:07am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/3 "2010-01-04T06:07:42Z")
A much better link: [http://www.youtube.com/watch?v=Cz8j8EC9Q0c#t=3m40s](http://www.youtube.com/watch?v=Cz8j8EC9Q0c#t=3m40s) Use the “#t” code to jump to where you want to start. I was all “WTF is this guy talking about?” until then. ---
**Author:** ![garygnu](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/garygnu/32/2924_2.png) [@garygnu](https://boards.straightdope.com/u/garygnu)\ **Post date:** [January 4, 2010, 6:14am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/4 "2010-01-04T06:14:28Z")
[Here is a video](http://www.youtube.com/watch?v=7c8mSt6Yc90) of Mythbuster Adam Savage trying out a modern self-powered unicycle made by [Focus Designs](http://focusdesigns.com/). ---
**Author:** ![Magiver](https://avatars.discourse-cdn.com/v4/letter/m/4491bb/32.png) [@Magiver](https://boards.straightdope.com/u/Magiver)\ **Post date:** [January 4, 2010, 6:48am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/5 "2010-01-04T06:48:42Z")
I believe it’s a one-off. Look at the craftsmanship of the dual engine motorcycle that follows. ---
**Author:** ![Boyo\_Jim](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Boyo\_Jim](https://boards.straightdope.com/u/Boyo_Jim)\ **Post date:** [January 4, 2010, 7:14am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/6 "2010-01-04T07:14:51Z")
> [@CC](#): > > It looks like a “simple” motorized monocycle. If the wheel is turning at even a medium speed, the gyroscopic effect will keep it steady. You wouldn’t have to have your feet on the pedals to keep it standing up or to move it. I imagine that your feet on the pedals essentially keeps you in the upright position, however, providing some resistance for the motor. It’s pretty cool, I’d say. jAnd I don’t know why a home inventor couldn’t use a nice, factory made fender for his gizmo. There is no way that wheel is rotating fast enough to have a substantial gyroscopic effect ---
**Author:** ![Magiver](https://avatars.discourse-cdn.com/v4/letter/m/4491bb/32.png) [@Magiver](https://boards.straightdope.com/u/Magiver)\ **Post date:** [January 4, 2010, 8:08am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/7 "2010-01-04T08:08:17Z")
> [@Boyo\_Jim](#): > > There is no way that wheel is rotating fast enough to have a substantial gyroscopic effect I could ride a bike that slow. It doesn’t take much. The mass of the wheel also plays a part in it as well as where it is located in relation to the center. ---
**Author:** ![spinky](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@spinky](https://boards.straightdope.com/u/spinky)\ **Post date:** [January 4, 2010, 11:27am UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/8 "2010-01-04T11:27:48Z")
You can ride a regular unicycle that slow, too. Doesn’t mean it’s gyroscopic forces holding it up… ---
**Author:** ![PlainJain](https://avatars.discourse-cdn.com/v4/letter/p/5daacb/32.png) [@PlainJain](https://boards.straightdope.com/u/PlainJain)\ **Post date:** [January 4, 2010, 7:35pm UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/9 "2010-01-04T19:35:36Z")
> [@garygnu](#): > > [Here is a video](http://www.youtube.com/watch?v=7c8mSt6Yc90) of Mythbuster Adam Savage trying out a modern self-powered unicycle made by [Focus Designs](http://focusdesigns.com/). Interesting, thanks for the links. I understand that gyro stabilized technology is fairly common now (Segway) but I’m wondering if it was in the mid 50’s. If this guy built a one off he really blew a chance at a money making patent. Regarding the gyro effect of the wheel. It only applies to the side to side effect. It would have no bearing on falling forward or backward. While riding a unicycle, if you remove your feet from the pedals while in motion you will _quickly_ fall either frontwards or backwards. ---
**Author:** ![CC](https://avatars.discourse-cdn.com/v4/letter/c/f1d935/32.png) [@CC](https://boards.straightdope.com/u/CC)\ **Post date:** [January 4, 2010, 7:45pm UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/10 "2010-01-04T19:45:50Z")
Just happened upon this vid: [http://www.wimp.com/theenicycle/](http://www.wimp.com/theenicycle/) Updated technology, but the same overall concept. Don’t know about your 50’s guy and multiple gyroscopes, though. ---
**Author:** ![spinky](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@spinky](https://boards.straightdope.com/u/spinky)\ **Post date:** [January 4, 2010, 8:09pm UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/11 "2010-01-04T20:09:30Z")
Neither the segway nor the enicycle are held up by gyroscopes. Using a gyroscope to hold something the size of a segway and rider upright would require a relatively massive gyroscope, and that would be a waste of energy. The gyroscopes in a segway are simply instruments that give the computer precise realtime measurements of lean angles. The enicycle sounds the same. ---
**Author:** ![CurtC](https://avatars.discourse-cdn.com/v4/letter/c/ce73a5/32.png) [@CurtC](https://boards.straightdope.com/u/CurtC)\ **Post date:** [January 4, 2010, 8:16pm UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/12 "2010-01-04T20:16:47Z")
> [@Magiver](#): > > I could ride a bike that slow. It doesn’t take much. The mass of the wheel also plays a part in it as well as where it is located in relation to the center. Riding a bike, especially riding a bike slowly, is not influenced by the gyroscope effect. ---
**Author:** ![spinky](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@spinky](https://boards.straightdope.com/u/spinky)\ **Post date:** [January 4, 2010, 8:30pm UTC](https://boards.straightdope.com/t/can-anyone-identify-this-vehicle/523569/13 "2010-01-04T20:30:38Z")
> [@CurtC](#): > > Riding a bike, especially riding a bike slowly, is not influenced by the gyroscope effect. Aside from the fact that you’re entering into an airplane-on-a-treadmill scale debate, this is not _quite_ true. The physicist who built the bike with counter-rotating wheels (to counteract the gyroscopic forces, proving that it could still be ridden) actually did acknowledge that there is a small influence from the gyroscopic effect. For example, riding with no hands uses the gyroscopic effect to assist in steering.