Recently asked questions about blue.
2009-11-14 12:46:44
A: Look in a mirror and you'll find out quickly.
2009-11-15 16:58:16
2009-11-08 00:25:50
A: Since there are many people named Monica, there are also many different answers, including: blue or brown.
2009-11-08 00:53:23
2009-07-31 20:28:16
A: This question has already been answered. Please refer to that question.
2009-08-01 12:47:20
2009-07-29 22:09:39
A: The most common form of color blindness, the red-green deficiency variety, affects between two and six percent of all men (All About Vision). This form does not affect women nearly as frequently. Likewise, other forms of color blindness, including blue-yellow deficiencies, are much rarer. Also, these other forms affect men and women equally. In total, somewhere between five and eight percent of the population suffers from color blindness in one way or another (Color Vision: From Genes to Perception
).
2009-07-29 22:28:52
2009-07-29 22:06:43
A: Hemoglobin accounts for most of red blood cells, and hemoglobin’s light absorption changes when it is oxygenated. So it can appear almost blue when lacking oxygen and more red when rich in oxygen. That is why blood can sometimes appear brighter red outside the body, when it is more oxygenated.
2009-08-04 22:10:19
2009-07-29 19:49:15
A: According to NASA, this question went unanswered for a long time. It turns out the Sun’s light is composed of all colors in the rainbow, including the blue we often see in the sky. Blue light waves are shorter than other light waves, so they are scattered the most by the molecules in Earth’s atmosphere, and thus they make the sky usually appear blue.
2009-07-29 20:03:30