zerpa
zerpa t1_j7fe0eo wrote
Reply to comment by abeinszweidrei in Why are green and red laser pointers so cheap and available, but yellow ones not so much? by SurprisedPotato
And why can't you just mix red and green, just like we do on a monitor/TV? The eye does not require a specific wavelength to perceive yellow.
zerpa t1_itmwqhl wrote
Reply to comment by ChefArtorias in USB-C iPhone will be mandatory in Europe as EU law passes final stage by prehistoric_knight
This might be true today, but the new legislation explicitly requires compliance to USB standard, including power delivery. It not just about the plug.
zerpa t1_j7hnytj wrote
Reply to comment by mfukar in Why are green and red laser pointers so cheap and available, but yellow ones not so much? by SurprisedPotato
I don't understand your point. The brain can't tell the difference between yellow wavelength and the mix of red+green that give the same excitation of red/green photoreceptors.
I get that it's not a coherent light/laser anymore, but it should still be possible to create a yellow pointer, if you can join the two beams and align them precisely.