Incredible and fun facts to explore

Visible Spectrum facts

While investigating facts about Visible Spectrum Wavelength and Visible Spectrum Of Light, I found out little known, but curios details like:

Purple as a color is similar to violet, but violet is a spectral color with its own wavelength on the visible spectrum of light whereas purple is a composite color, made by combining red and blue.

how much of the electromagnetic spectrum is visible to us?

Although violet and purple look very similar, violet is a true color with its own set of wavelengths on the spectrum of visible light, while purple is a composite color made by combining blue and red

Which two waves lie at the ends of the visible spectrum?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering which colors are at the extreme ends of the visible color spectrum. Here are 31 of the best facts about Visible Spectrum Definition and Visible Spectrum Range I managed to collect.

which two waves lie at visible spectrum?

  1. Vantablack is the blackest black absorbing up to 99.965% of radiation in the visible spectrum

  2. Color-blindness in humans happens when a person has two visual processing cones instead of the usual three. There is a flipside, that there are people who have a condition known as Tetrachromacy, where someone has four cones, potentially allowing them to see more of the visible spectrum.

  3. The color magenta does not have a wavelength. It's the product of combining red and blue light, which are on the opposite ends of the visible light spectrum, so our brains fill in the gap with what they think the color should be.

  4. Magenta does not exist in the visible light spectrum and does not have a corresponding wavelength, so your brain interprets it as "not green"

  5. The colour Magenta, does not exist on the visible spectrum. Our brain apparently constructs the colour Magents to bridge the gap between red and violet.

  6. Purple is not considered a color in the visible spectrum, due to it not being a single wavelength color, much like white

  7. Violet and purple are completely different colors. While violet has its own wavelength (lies between blue and UV), purple is created by adding Red and Blue (the far ends of the visible spectrum). And probably only humans see it as similar cause our brains cannot differentiate.

  8. Of all the forms of radiation and light on the electromagnetic spectrum, humans can only visibly see a very small amount of light.

visible spectrum facts
What visible spectrum has the longest wavelength?

Why is visible light where it is on the electromagnetic spectrum?

You can easily fact check why is visible light in the middle of the spectrum by examining the linked well-known sources.

Isaac Newton built the first practical reflecting telescope and developed a sophisticated theory of colour based on the observation that a prism decomposes white light into the colours of the visible spectrum.

The green flash, an optical phenomenon that occurs during sunset or sunrise. The color green is occasionally visible for a few seconds, and happenes because Earth's atmosphere can separate the light into the spectrum. - source

Vantablack. Made of carbon nanotubes, it is the blackest known substance in existence, absorbing 99.965% of radiation in the visible spectrum. - source

After originally dividing the visible light spectrum (or rainbow) into five main colors, Newton later included Orange and Indigo to match the number of notes in a musical scale.

Fiber Optic cables transmit light in IR spectrum, not in visible light. - source

When psychologists refer to the visible spectrum they mean?

Ewald was researching wavelengths in the visible spectrum and it was Laue's research on X-ray diffraction that was crucial to his discoveries.

How much of the electromagnetic spectrum is visible?

The "Rainbow contains 7 colors, red, orange, yellow, green, blue, indigo and violet" is a myth. These are actually the colors of the visible spectrum. Rainbows contain upward of 1 million colors, they're just invisible to the human eyes.

Redshift is the stretching of wavelengths due to the expansion of the universe, it is called redshift because red on the visible light spectrum has longer wave lengths then others colors so over time as the universe expands the colors will change from a smaller to a larger wavelength.

The range of visible light on the electromagnetic spectrum is so small that if you were to lay out the practical electromagnetic spectrum from Los Angeles to New York, the visible wave lengths would be nanometres across, small enough to pass through a surgical mask.

The Sun emits the majority of its energy at ~500nm, closest to blue-green light on the Visible Spectrum. This is also the reason certain plants appear green.

The main reason eyes see in the "visible" spectrum" is because the earliest species to develop photosensitivity were aquatic, and only two specific wavelength ranges of electromagnetic radiation, blue and green visible light, can travel through water.

When psychologists refer to the visible spectrum?

Blue wavelengths are the most potent portion of the visible electromagnetic spectrum for circadian regulation, and therefore avoiding blue light in the hours before bedtime helps improve sleep quality.

There is a significant difference between violet and purple. Violet is a true color, with its own wavelength on the spectrum of visible light, while purple is a created composite color, made by combining blue light at high intensity with low intensity red light.

In his book "Opticks", Sir Isaac Newton related the colors of the visible EM spectrum with the musical notes of a musical scale

The visible spectrum is almost exactly the band of wavelengths that pass through water, probably because it's an obvious evolutionary advantage for water to be transparent

The spectrum of light refracted by a rainbow stretches beyond the visible spectrum

How to remember visible light spectrum?

The sky is actually purple, our eyes just tend more towards the green end of the "visible light" spectrum.

The majority of the space porn we look at is not how we would actually see it. The human eye is only able to comprehend the visible light while the sattelites we take the pictures with are able to detect most wavelengths of the electromagnetic spectrum.

This is our collection of basic interesting facts about Visible Spectrum. The fact lists are intended for research in school, for college students or just to feed your brain with new realities. Possible use cases are in quizzes, differences, riddles, homework facts legend, cover facts, and many more. Whatever your case, learn the truth of the matter why is Visible Spectrum so important!

Editor Veselin Nedev Editor