Tagged Questions
3
votes
1answer
88 views
What the name of the evacuated glass gadget with black and white vanes that turn when a light is applied?
I remember a glass device my physics teacher had at high school which
Contained some vanes mounted somehow on a vertical axis, which were all black on one side and white on the other
Was in a ...
0
votes
2answers
69 views
Is an electric lamp a transducer? [closed]
Silly thought.
A transducer, by definition, is a device that converts variations in one form of energy to another. An electric lamp converts electricity into visible light - the brightness may vary ...
0
votes
0answers
187 views
Is Photosynthetic Photon Flux Density (PPFD) a synonym for Photosynthetically Active Radiation (PAR)?
Both have units of $\mu\text{mol m}^{-2}\text{s}^{-1}$ and refer to light in the 400-700 nm range - that activates photosynthesis. However, I just want to confirm that these are synonyms and don't ...
0
votes
2answers
148 views
Identifying hue, brightness and chroma of color and reaction time
If someone knows how identify hue, brightness, and chroma of color, please let me know.
I am a PhD student at Educational Linguistics UNM.
0
votes
1answer
112 views
Name for phasor model of light
I'm looking for the name of the model of light "exploring" every path to a given point, and reaching that point with a probability proportional to the square of the resultant phasor's amplitude. (Yes, ...
