johansons.info

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“The visible light is only a small part of the electromagnetic radiation observed in nature. Depending on the wavelength, different types of radiation have different properties. Within the “optical window” – visible spectrum of light - the wavelengths in the range of 380 to 750 nm are interpreted as colours by the human eye, covering the spectrum of a rainbow, from violet to dark-red.

The eye’s sensitivity to a specific part of the spectrum grants us a glance in the obscure world of immense physical phenomenon of electromagnetic radiation, otherwise hidden to human senses. In fact, the visible light is an illusion, a “rainbow in the realm of darkness” that doesn’t exist as a separate event. What is there is a flow of electromagnetic energy, and the eye’s sensitivity to a part of it’s spectrum permits perception of the information that it caries, facilitating the association between living beings and the world.”