I was wondering why it is that I see the things I do. The ocean seems simple enough light from the sun hits sun and all colors are absorbed except blue so I see blue. (What makes the sea blue I don’t know) however let’s say it’s dusk how come I can see trees which are in shadows and the sun isn’t directly hitting them. Is light reflected off the clouds which then shines on the objects in my vision? What properties of objects makes it to they absorb certain Coralie and reflects others.
Another thing how do different color lenses affect the colors I perceive and why?
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The atmosphere (air) scatters light. This is why shadows created by the sun on Earth aren’t pitch black, like they are e.g. on the Moon. In a shadow on Earth, light is still coming in from other directions than straight from the sun, “filling in” the shadow with some light.
At dusk, the sun is below the horizon, so there is no direct path from it to your eye, or to your surroundings. But it’s still giving off light that comes over the horizon and bounces back down off the atmosphere to illuminate the sky and your environment. Of course, as the sun sets further below the horizon, there are fewer and fewer light rays that make it over the horizon (i.e. that aren’t blocked by the planet) so eventually all the light disappears, going from dusk, to “civil twilight”, to “nautical twilight”, to “astronomical twilight” and finally to full night. But dusk and twilight can last a long time, especially in summer if you’re far from the equator. In many places, night never totally sets in during summer – it’s just some degree of dusk/dawn or twilight all the way from sunset to sunrise.
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