Re: [Phys-L] bike wheel handles

[Dan Beeker <debeeker@comcast.net>]

Consider your audience. For those with short arms I find the smaller 20" wheels work much better. Avoids chaffing of the chin with the tire. If you get good bearings so the wheel turns smoothly I find the gyro effect is very noticeable. A weighted wheel would help but is not really necessary.

Dan


On May 26, 2013, at 12:00 PM, phys-l-request@phys-l.org wrote:

> Message: 2
> Date: Sat, 25 May 2013 15:59:48 -0700
> From: Bernard Cleyet <bernard@cleyet.org>
> To: Phys-L@Phys-L.org
> Subject: Re: [Phys-L] bike wheel handles
> Message-ID: <6F160BF5-14AD-4321-A9EA-83E8150F4C10@cleyet.org>
> Content-Type: text/plain; charset=us-ascii
>
>
> On 2013, May 25, , at 07:20, John Denker <jsd@av8n.com> wrote:
>
> > Note that axle pegs are characteristic of BMX bikes, which normally
> > have 20 inch wheels ... but for typical angular momentum demos you'd 
> > rather have something larger.  I recommend 700 mm road-bike tires.
>
>
> Size less important if one uses a liquid or solid instead of a gas to fill the tyre.