3 ms·
From the nasa link: > * it emits most of its energy around 500 nm, which is close to blue-green light. So one might say that the sun is blue-green! * Fantasti
by cmroanirgo 6y ago
From the nasa link:
> * it emits most of its energy around 500 nm, which is close to blue-green light. So one might say that the sun is blue-green! *
Fantastic!
- AndrewThrowaway 6y agohttps://www.lrc.rpi.edu/programs/NLPIP/tutorials/photosensors/img/spectralgraph.jpg https://www.lrc.rpi.edu/programs/NLPIP/tutorials/photosensor... So human eye is more sensitive to the same wavelengths the Sun emits more! So it all evens out and the Sun only appears white! That's why we define white as white as this is "lit by the Sun / reflects all sunlight" - our only source of light for many years. So if e.g. dog's eye is sensitive to different wavelengths it should see the Sun in different color? But then again, a dog should call it "white" as this is what you would call "lit by sun" as opposed as e.g. "lit by fire". Fascinating!