Quote (russian @ Feb 7 2017 11:58am)
Once again, water and ice have the same refractive index, and there's no such thing as "dispersive qualities" with regards to light.
And you never said "just a few drops of water". It takes a shitload of water to make a real rainbow, why would the challenge limit how much water you can use? Are you gonna limit how powerful the flashlight can be next? "Sorry, under 10 lumens only! Wouldn't want to use anything even remotely resembling real conditions".
wrong as usual.
water has a refractive index of 1.33
ice has a refractive index of 1.31
Light itself doesnt have a dispersive quality - the medium you shine it through does, no wonder why you feel fine with moving the goalposts, you really dont understand stuff
And if you actually remember we were talking about making a rainbow outside with some water spray from a hose - as in the water is moving and just a few drops
your ice is completely static and is a completely different quantity and phase, typical dishonesty.
And the key to a rainbow is not simply the refraction, the dispersion though the medium it is passing is far more important, but of course you dont even know this.