Mount Creta di Pricot (2203m a.s.l., Cavallo di Pontebba Group) and the Spruce Forests South of the Passo di Pramollo/Nassfeld Pass, with a Particular Hidden Sunset Light; Carnic Alps of FVG, Udine, Italia
12-february-2021: snow is white, so it is a body that reflects light 90% (albedo 0,9 out of 1), therefore maintaining the originary wavelength.
Contrary to what is believed, it is clear bodies, those that reflect the light the most, apparently "color themselves" more, reflecting and therefore making the wavelengths of the colors of the light they reflect reach from those bodies; on the other hand, it is the bodies that most absorb light, especially dark ones, those that light up well and change their apparent color less, precisely because they absorb light, which does not mean "turning on", but making it one's own by not showing it.
The snow, therefore, pure white, is really white only when illuminated by an equally clear and pure light, like the sun on a clear day; already in the shade, on a bright and flawless day, we notice that it generally becomes bluish, reflecting the light of the clear sky, as well as in the evening.
But it can have many shades, even very strong ones, such as pink-orange at sunset, or the less fascinating yellow and gray in pale sunny or cloudy days.
Mount Creta di Pricot (2203m a.s.l., Cavallo di Pontebba Group) and the Spruce Forests South of the Passo di Pramollo/Nassfeld Pass, with a Particular Hidden Sunset Light; Carnic Alps of FVG, Udine, Italia
12-february-2021: snow is white, so it is a body that reflects light 90% (albedo 0,9 out of 1), therefore maintaining the originary wavelength.
Contrary to what is believed, it is clear bodies, those that reflect the light the most, apparently "color themselves" more, reflecting and therefore making the wavelengths of the colors of the light they reflect reach from those bodies; on the other hand, it is the bodies that most absorb light, especially dark ones, those that light up well and change their apparent color less, precisely because they absorb light, which does not mean "turning on", but making it one's own by not showing it.
The snow, therefore, pure white, is really white only when illuminated by an equally clear and pure light, like the sun on a clear day; already in the shade, on a bright and flawless day, we notice that it generally becomes bluish, reflecting the light of the clear sky, as well as in the evening.
But it can have many shades, even very strong ones, such as pink-orange at sunset, or the less fascinating yellow and gray in pale sunny or cloudy days.