Color of light

The week long focus on color began on Monday with a video that connects waves from week nine with the color of light in week ten, The Limits of Light by The Secrets of Nature. Wednesday began with the use of CD spectroscopes, a discussion of how many colors and what are those colors seen in the spectrum and wrapped up with Why is Indigo in the Rainbow?


Thursday's lab saw the return use of a microscope to examine a cell phone. The lowest magnification did was not suitably sufficient for my new Motorola Moto G30, so I had to move up one tube. I then was able to use blurring to show that the red and green phosphors did indeed produce yellow. 

This was followed by a truncated version of ps 10 Color. 


The class worked primarily on cell phones. Connectivity was suboptimal, thus loading the text to get the code segment was suboptimal. A new code page was added after class. This should make setting up the online HTML editor easier in future terms. Perhaps.


Later in the afternoon a misty rain brought a double bow and Alexander's dark band to the campus.

Friday will explore the impact of blue light on circadian rhythms, digital wellbeing, and black light. 

The rainbow remained visible from many locations for many minutes.






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