What Color is the Sky?
It seems like a simple question. Most would naturally respond with “Blue.” In science class we learned that the sky was only blue because it was reflecting the ocean. However, the sky is not ALWAYS blue. What about at night? Then sky appears nearly black (with tiny mostly white shiny spots, lol). What about during sunrise, sunset & twilight? Then it is a range of colors blending seamlessly into one another! So the sky could be said to be ALL colors! We also learned in school that smog is the reason that cities like Los Angeles have such colorful sunsets (and sunrises too I suppose, but many like me are never up at that wicked hour LOL).
Is the sky really “clear” then; only acting as a mirror? Is it a prism?
What if there is cloud cover? Then the sky is mostly white or gray, or perhaps clouds don’t count? I think that if they dominate the sky they should definitely count!
What of the Auroras (Borealis & Australis)? That is an activity that actually takes place IN the sky; so it is not a reflection of the ocean or land, but of the atmosphere where this said sky supposedly exists.
Is the sky just an illusion? What we perceive to be sky is just the universe out there. So “sky” seems to just have been a human invention (probably before we had science to explain stuff).
Measuring in altitude, where does the sky begin and end exactly? The nanometer above where land settles? I thought we mostly just consider that air. Is it above our eyelevel; so that anything that makes us look upwards becomes the sky? Does it begin above houses, trees, or skyscrapers? Airplanes are said to fly in the sky and appear so. Does the sky end at something like 10, 50 or 100 miles above the Earth?
This kept me awake for a while last night. I fell asleep thinking on this. Just wanted to share some food for thought.
Is the sky really “clear” then; only acting as a mirror? Is it a prism?
What if there is cloud cover? Then the sky is mostly white or gray, or perhaps clouds don’t count? I think that if they dominate the sky they should definitely count!
What of the Auroras (Borealis & Australis)? That is an activity that actually takes place IN the sky; so it is not a reflection of the ocean or land, but of the atmosphere where this said sky supposedly exists.
Is the sky just an illusion? What we perceive to be sky is just the universe out there. So “sky” seems to just have been a human invention (probably before we had science to explain stuff).
Measuring in altitude, where does the sky begin and end exactly? The nanometer above where land settles? I thought we mostly just consider that air. Is it above our eyelevel; so that anything that makes us look upwards becomes the sky? Does it begin above houses, trees, or skyscrapers? Airplanes are said to fly in the sky and appear so. Does the sky end at something like 10, 50 or 100 miles above the Earth?
This kept me awake for a while last night. I fell asleep thinking on this. Just wanted to share some food for thought.