🔬 Enhanced Visual Spectrometry with Diffraction Grating Slide Double Lines Pack Review

I liked that I found new ones. I only had some old ones that I found in a rudimentary science lab. I used them to illustrate the refraction of light and the students thought they were "cool".

The grids we had had the wrong number of lines per inch. This is easy to understand once you know the wavelength, but it can be confusing for beginners. This still works for the demo.

This cool little thing can be carried in your wallet and shown to others when needed. I also like to give them away to friends and random strangers in the bar, people always think that's pretty cool. Thunderleg sent me.