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Posted by brian on September 4, 2008, 3:05 am
I wanted software to explain a concept but instead, i ended up using a strip
of mylar, some drawings, some plastic ties 2 clamps and a laser level.
(Perhaps if you have thicker mylar you can dispence with the plastic ties).
It actually worked really well.
Take a look at
You can find info about compound parabolics at
Posted by Morris Dovey on September 4, 2008, 3:21 am
DeSoto, Iowa USA
Posted by ohara5.0 on September 5, 2008, 3:56 am
I am very impressed. That is wonderful. You should market that as a
simple optics demonstrator for schools. Combine it with a freeware
ray tracing program and it's be a killer educational thing.
Posted by ohara5.0 on September 5, 2008, 3:23 pm
On Sep 4, 11:56 pm, ohara...@mindspring.com wrote:
You could use this to demonstrate spherical aberration in telescopes.
You could demo the aberrations in grazing incidence x-ray telescopes.
Posted by brian white on January 30, 2009, 5:40 am
I think I have found software that is easy enough to use and that can be
It is called art of illusion and I have started a thread in their forum
about solar cooking.
replies have been very helpful