Hi all

[Art Lischer]

LOL!  My Son's HS Physics competition project.  Iowa State University 
Physics department puts on a competition among HSs to build a roller 
coaster device that demonstrates 10 laws of physics while keeping a 
steel ball in motion for 2min and do something at the end; that year it 
was close a circuit to light a bulb.  His group couldn't get this one to 
work on cue for the judges but it was a crowd favorite getting alot of 
attention from the100 or so in attendance.   They won the competition 
the year before with a less elaborate but still impressive one.

Art in DM 

1KPerDay wrote:
> What is THIS?
> http://www.flickr.com/photos/97531120@N00/286835275/
>
> The mysterious source of GPz cam pitting? Closeup of the inside of a
> regulator/rectifier? Some sort of perverse medieval torture device???
>
> :D
>
>
> On 4/9/07, Art Lischer <alisch80 at mchsi.com> wrote:
>> here is a linky to six photos of my wheel/sprocket/hub and spacers 
>> apart.