Problem 77
Your friend reasons that magenta and yellow paint mixed together will produce red because magenta is a combination of red and blue and yellow is a combination of red and green鈥攁nd that the color in common is red. Do you agree or disagree, and why?
Problem 80
Why can鈥檛 we see stars in the daytime?
Problem 81
Why is the sky a darker blue when you are at high altitudes? (Hint: What color is the 鈥渟ky鈥 on the Moon?)
Problem 82
There is no atmosphere on the Moon to produce scattering of light. Discuss how the daytime sky of the Moon would appear when viewed from the Moon鈥檚 surface.
Problem 83
Can stars be seen from the Moon鈥檚 surface in the 鈥渄aytime鈥 when the Sun is shining?