The human eye has limitations.
The human nervous system separates colors as a result of the responses of different types of pins on the nerve membrane (retina) covering the back wall of the inner surface of our eyes to light – in simpler terms: our eyes perceive colors with the help of pins in the retina.
However, individual colors do not stimulate the neurons of the cones in the same way, that is, we do not perceive all colors to the same degree. For example, blue tones appear dark to us because our eyes are less sensitive to blue light. NASA tried to illustrate what this means in practice by using a special image processing technique to convert an image of the Earth taken by the Suomi NPP earth observation and meteorological satellite into what we would see if the human eye were equally sensitive to all colors:
Blue tones show more ocean detail and the atmospheric layer is slightly more visible
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To show the difference, we have included it original image (the left photo), i.e. the version as we see our planet now:
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(Forrás: Planetary Habitability Laboratory (PHL)photo: NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring, photo: ESA/NASA-S.Cristoforetti)
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2023-07-10 02:50:00
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