![]() We associate the color orange with a wide variety of different things. Orange can be found between 600 and 650 nm. The result is an orb which appears yellow or orangish red at various times of the day. Yellow is among the least affected colors during this process. The sun actually burns a bright white, but the earth’s atmosphere scatters sunlight as it pours down on us. But as we’ve seen time and again color is often due to reflection and refraction of light. And to be sure, the sun certainly does appear to be yellow. Ask people to think of yellow things within their life and they’ll probably list the sun somewhere in their recitation. ![]() The reflected light is why we see leaves as green. Plants primarily absorb red, and to a lesser extent blue light. The greenery is due to the fact that plants are using their leaves to absorb energy from the sun. Go into a forest and you’ll find yourself presented with wide swaths of green leaves. The color is often associated with nature and it’s easy to see why. The colorful atmosphere of Uranus is thanks to its plentiful methane. If someone could look out at the skies of Uranus he’d see a beautiful cyan sky. However, you’d have to hop over a few planets to see our solar system’s greatest concentration of cyan colored vistas. It’s especially common when we look out at shallow waters over a sandy beach. We also see it called by some other names including aquamarine or electric blue.Īs you might expect, we do see aquamarine in aquatic environments. However, cyan is still quite prevalent in the world. Cyan might not be referenced by name as much as most of the colors on this list. This all comes together to make it seem like someone with a clear stroma has blue eyes. Blue light in this mix will appear more prominent thanks to the tyndall effect. Light hitting someone’s clear stroma will scatter. People who seem to have blue eyes actually lack any pigment in the stroma of their eyes thanks to a genetic mutation. Do you, or someone you know, have blue eyes? If so, don’t assume it’s because of blue pigment. For example, the blue of the sky is due to rayleigh scattering rather than pure blue light. You might be surprised to find out that a pure blue color isn’t quite as common in nature as it would appear. Blue: 450 – 500 nmīlue light has a wavelength between 450 and 500 nm. Only the most wealthy could afford to have clothing colored with this expensive dye from Tyre. It’s thought that this is where an association between violet or purple and nobility first began. This dye was beautiful, much desired and quite expensive. The Phoenician city of Tyre made a special dye from local shellfish. However, with that in mind we can say that some of humanity’s earliest associations with the color violet come from the bronze age. The fact that both colors are so similar makes it difficult to firmly say whether or not any ancient group was using violet or purple. Purple is a mix of red and either blue or violet. The human eye tends to easily mistake violet and purple. Violet light has a wavelength between 400 and 450 nm. But when we take a moment to understand each color and frequency, we can broaden our understanding of the beautiful world which surrounds us. Nor are we consciously aware of the cone cells in our eyes translating specific wavelengths of light into color. We’re not aware of the fact that objects are continually bouncing tiny particles and waves of light into our eyes. Meanwhile the smallest human hair has a diameter of 80,000 nm. Visible light exists from 400 to 700 nanometers. This tiny size is known as a nanometer or nm. Light exists as waves on a very small scale of size. But don’t be fooled by the term physical. And this light is also a physical property which can be mathematically defined. It’s not so much that an apple is intrinsically red. It’s this reflected light which we’re recognizing as a color. Every object absorbs and reflects light in different ways. But at the same time there’s more to the story. In the same light an object will always appear to be the same color no matter how many times we look at it. Most of us think of color as an inherent property of an object. However, in reality color is tightly bound to math. ![]() Meanwhile math is seen as objective and somewhat cold. We associate color with abstract beauty and subjectivity. ![]() At first glance color and advanced math seem to be miles apart from each other. ![]()
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