Spiral Fresnel Reflectors
A recent Slashdot article was a rather dull one about fun things you could do with a large Fresnel lenses. I had seen stuff like this before, but in scanning over the responses as I often do, I found a reference to a patent for a spiral Fresnel reflector. You can review this the patent here. It’s rather clever. Basically you can plot a spiral onto a flat sheet of reflective material, and then wind it around according to a particular formula (equation 2 in the patent) which causes the slats to tilt at the appropriate angle to bring light to the desired focus.
I thought it was a cool idea, I’ll have to work up a program to plot the design for these, and then use it to make an immense solar hot dog cooker. Or something.
I suspect the world would be better if that percentage were even greater.
Apparently 15% of all web traffic is cat related. There's no reason for Brainwagon be any different.
Thanks Mal! I'm trying to reclaim the time that I was using doom scrolling and writing pointless political diatribes on…
Brainwagons back! I can't help you with a job, not least because I'm on the other side of our little…
Congrats, glad to hear all is well.