spaceballs...

[g]

On 07/06/2011 03:06 AM, g wrote:
<>

> there are ir leds emitting at surface of balls and ir detectors receiving
> reflections from ball surface.

in addition, there are some trackball mice that use a roller bar, ie, like
a standard mouse. i do not recommend them. they do not track well.

you will also find 'palm ball' types, but they are not as convent to use
as a 'thumb ball'. i had one and gave it away.

-- 

peace out.

tc.hago,

g
.


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