dont look this up?

Question

ok without looking this up please tell me if you know why the sky is blue.

dont look this up because im taking a vote for a science fair and its VERY VERY important that you dont look it up.... please be honest

Answer 1

The sky is blue because the blue wavelengths of light are scattered more than the longer wavelengths.

Answer 2

Because of the strong wavelength dependence (inverse fourth power) of light scattering according to Raleigh's Law, one would expect that the sky would appear more violet than blue, the former having a shorter wavelength than the latter. There is a simple physiological explanation for this apparent conundrum. Simply put, the human eye cannot detect violet light in presence of light with longer wavelengths. There is a reason for this. It turns out that the human eye's high resolution color-detection system is made of proteins and chromophores (which together make up photoreceptor cells or "Cone" structures in the eye's fovea) that are sensitive to different wavelengths in the visible spectrum (400 nm–700 nm). In fact, there are three major protein-chromophore sensors that have peak sensitivities to yellowish-green (564 nm), bluish-green (534 nm), and blue-violet (420 nm) light. The brain uses the different responses of these chromophores to interpret the spectrum of the light that reaches the retina.

Answer 3

not sure about the spelling without double checking, but in 7th or 8th grade science we were taught that it is due to a process called "rayleigh scattering" good luck with your project!~

Answer 4

wow this can be fun...

the sky is blue...because....rain is blue :)

sounds like a fun experiment!