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by dhaffnersr almost 2 years ago | 1 | 707 views | 0
I replaced the DVD diffraction grating for my spectrometer in order to get a more balanced...
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by dhaffnersr almost 2 years ago | 1 | 460 views | 0
[ and a new camera I got for it...
by dhaffnersr almost 2 years ago | 0 | 593 views | 0
September, 5 2016 **3 Different LED bulbs and 3 different CFL bulbs from different manufactures...
by dhaffnersr almost 2 years ago | 0 | 691 views | 0
[ mimics the solar spectrum by super heating an element s...
by dhaffnersr almost 2 years ago | 3 | 751 views | 1
Back in June of this year, Dave @Stoft helped me out considerably by explaining the princi...
by dhaffnersr almost 2 years ago | 0 | 1,215 views | 0
Author David H Haffner Sr. 08/24/2016_ Abstract Staining is an auxiliary techni...
by dhaffnersr almost 2 years ago | 0 | 494 views | 0
Abstract This is the final data analysis for my new 0.11mm slit design. I used Eosin Y as ...
by dhaffnersr almost 2 years ago | 0 | 430 views | 0
**Here is the first 2 plots illustrating the removal of the 1st and 2nd order Rayleigh pea...
by dhaffnersr almost 2 years ago | 0 | 436 views | 0
Here is the data for the second part of my comparison of the 0.09mm acetate film strip and the 0....
by dhaffnersr almost 2 years ago | 1 | 496 views | 0
This is part 2 from my previous research post on **Microscopic View of Public Lab's Acetate film ...
by dhaffnersr almost 2 years ago | 3 | 422 views | 0
I have wanted to do this for awhile now, and finally got around to it and I am glad I did, I took...
by dhaffnersr almost 2 years ago | 0 | 682 views | 0
I wanted to test the resolution of my 0.09mm slit width, so what better way to do that t...
by dhaffnersr almost 2 years ago | 2 | 542 views | 0
My personal opinion on this subject is that, there has always been warming and cooling trends on ...
by dhaffnersr almost 2 years ago | 1 | 511 views | 0
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by dhaffnersr almost 2 years ago | 0 | 710 views | 0
Eosin is a name of several fluorescent acidic compounds which bind to and form salts with ...
by dhaffnersr almost 2 years ago | 0 | 653 views | 1
I have been also working on a far more stable entrance slit design and decided to include it with...