UV when testing composition
Posted 15 September 2018 - 03:46 PM
Energy is weekening with square of the distance, and usually burn tests are stared at from, what? 2-3 meters, I'm thinking of the UV that hit the retina.
Is there some littérature outhere about it?
Posted 15 September 2018 - 04:27 PM
Posted 16 September 2018 - 12:39 PM
Edited by Sulphurstan, 16 September 2018 - 12:40 PM.
Posted 16 September 2018 - 06:27 PM
Posted 16 September 2018 - 10:58 PM
If you are close then there will be some UV, but there is (IMO) also a fragmentation risk, bits can and will fly off fireworks. Also you should make tests at about the range that your intended spectators will be, if it's too bright or too close then most stars don't look their best.
Posted 17 September 2018 - 12:29 PM
. But fact is that my tests area is restricted to a few square meter in my backyard, where my nice neighborhood cannot see too much what I'm doing...
I wish I could test in the field, 100 m away 💔, for pleasure and for an accurate scientific approach... In another life or another place....
Posted 24 September 2018 - 11:54 PM
If you are testing stars closeup, you will get a much better representation of color in the sky at the expected display height by looking at reflected light. Being too close will effectively oversaturate your eyes. I piece of paper on a tree or post will work just fine.
The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.
Posted 25 September 2018 - 04:21 PM
Posted 26 September 2018 - 12:13 PM
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