Can we see everything around us?

The human eye is simply perfect. Our eyes are exactly as they should be. There is no more or less. What I asked in the title

Can we see everything around us?

Of course, the question is not actually to criticize the human eye or to talk about the inadequacy of the human eye. Since the audio sample is more familiar to us, let's start with the audio sample first and then return to the main topic.

A healthy person can hear sounds in the frequency range of 20 Hertz to 20000 Hertz.

Well, is it a loss not to hear sounds at frequencies below 20 Hertz (infrasound) and above 20000 Hertz (ultrasound). No, it's definitely not a loss. If we could hear all the sounds in nature, we would have to live in extreme discomfort and we would have trouble falling asleep. You imagine the rest.

Now let's talk about light. Our eyes can see and perceive the type of light called White Light. White light is the name for the light emitted from the Sun, the only star in our solar system. The reason why Sunlight is called White Light is because it contains many colors and when these colors come together, they really create white colored light.

British scientist Newton in experiments he once did

that daylight passes through the prism and separates into its constituent components.

has proven. Let's take a look at the image below:

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When white light, that is, daylight, passes through the glass prism, it is divided into 7 colors that form itself. These colors are as follows:

Red,Orange,Yellow,Green,Blue,Navy Blue,Purple

Yes, could it be that much of a coincidence? These colors are the colors of the rainbow, as you have noticed. There is the same principle in the formation of the rainbow. When the sun suddenly shines after rainy weather, many water droplets in the environment act like light prisms and break the light into parts. In this way, we see the rainbow, which is a visual feast.

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After addressing the secondary issues, we can return to the main topic. Of course, we don't see everything around us. If we think like the sound example, maybe if we could see all kinds of light, we would be very uncomfortable. All the lights that surround us are displayed together in a single graphic.

Electromagnetic Spectrum or Light Spectrum

is called. This chart is as follows:

^{Image Source}

If we carefully examine the mage I have given above, we can see very little of the types of light around us, only daylight. Daylight consists of 7 different colors and the lights between them.

If we compare all the lights around us to a 30-centimeter wooden ruler that we are all familiar with, the length of the light types we can see on that ruler does not exceed 3 centimeters.

If we could see all the lights, as in the sound example, it would be very uncomfortable to wake up in the morning and open our eyes to the world. How fun can it be to watch the world from a thermal camera?