Why sky is blue wiki

Science Girl: Oh. Science Girl: So why isn't the sky violet? Megan: Well, because, uh Discussion I think most explanations of the the mirror issue overlook an even simpler explanation -- Things appear to be flipped such that left and right are reversed.

The part nearest to the mirror reverses. Example, if you hold your right gloved hand in front of the mirror with the 5 fingers pointing to the mirror, the image that you see in front of the mirror is not similar to the left-hand glove, but it is the right glove turned inside-out. To test, wear a right latex glove, write something on it, then remove the glove, making the right glove inside out. If you can read what you had just wrote, it had reversed horizontally, but not vertically, assuming same frames of reference.

KeithyIrwin talk , 10 December UTC If the part you added was "mirrors don't reverse things, turning around does", then I think that that is the best description. If you can see text in a mirror, then that means that you have turned away from the text. And normally, humans turn around the z-axis. If, rather than turning away from a sign to look at a mirror on the opposite wall, you instead somersaulted backward into a handstand, then you would see the sign reversed vertically instead of horizontally.

CityZen talk , 11 December UTC I always wonder: Since the sky goes from red to blue to red and the optical spectrum goes from red to green to blue. Because of human color perception. You only perceive green in polychromatic light when said light is stronger in the middle wavelengths than the low or high wavelengths; in other words, you would need a process in the sky that removed both the high and low wavelengths from white light.

As the sun sets, only the lower wavelengths are removed, so you perceive yellows and reds -- this perception of color is "one-sided", i. By the way, sometimes you do see green briefly in the sky, it's called a Green Flash. The effect could last for hours.

I don't know the actual connection between the two situations--I would guess from the previous comment that whatever atmospheric conditions create tornado conditions also "edit out" both high and low wavelengths, at least to a degree. It's been fixed.

Wouldn't that be "first year students" to be proper English? There is no doubt about what is meant here or at least, I hope there isn't, but perhaps there are regional differences that mean some English speakers don't say "first years" to talk about students in their first year , and the register is not unduly colloquial for this kind of a site.

What is farther from the mirror appears farther in the mirror. But in a "absolute reference frame", both image and original wave their arm nearest to the door. Interestingly automobile drivers don't make this error: if you see a car in the rear mirror blinking left you don't assume they want to turn right In fact, the scattering of nanometer light violet is 9.

Though the atmospheric particles scatter violet more than blue nm light , the sky appears blue, because our eyes are more sensitive to blue light and because some of the violet light is absorbed in the upper atmosphere.

During sunrise or sunset, the sun's light has to pass through more of the atmosphere to reach your eyes. Edit rating Role: Support Some of the most unique mechanics in the game. Allows summoning twice on the same turn if in the frontline. Does not attack except for her Charge Attack. Varied party-wide buffs allow her to contribute to nearly any situation.

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All damage dealt by this boss is non-lethal. Can be defeated by players of almost any rank through auto-battling. At start of battle Casts Dragon's Testament. First clear : Bahamut Claw. Sword of Bahamut Nova. Dagger of Bahamut Nova. All light travels in a straight line unless something gets in the way and does one of these things:—.

Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere.

Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white. The sunlight reaching us from low in the sky has passed through even more air than the sunlight reaching us from overhead.

As the sunlight has passed through all this air, the air molecules have scattered and re scattered the blue light many times in many directions. Also, the surface of Earth has reflected and scattered the light.