Can We See Invisible Spectra Like Birds See UV Light?

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    Invisible Spectra
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Discussion Overview

The discussion explores the possibility of perceiving electromagnetic spectra beyond the visible range, such as radio waves, X-rays, and microwaves, similar to how birds perceive ultraviolet light. Participants consider both biological and technological means of "seeing" these spectra.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions the feasibility of visualizing non-visible spectra, suggesting that human eyes are not sensitive to those frequencies.
  • Another participant cites cases where patients with artificial lenses reported seeing "new colors," indicating some ability to perceive ultraviolet light.
  • It is proposed that seeing radio or microwaves is biologically impossible due to their long wavelengths, which cannot be absorbed by cells.
  • Some participants argue that "seeing" does not have to be biological, prompting a discussion about the use of machines to detect other spectra.
  • Examples of technology that can detect non-visible spectra are provided, such as infrared cameras and radar systems, which convert these signals into visible images.

Areas of Agreement / Disagreement

Participants express differing views on the possibility of seeing non-visible spectra, with some asserting biological limitations while others suggest technological alternatives. The discussion remains unresolved regarding the potential for human perception of these spectra.

Contextual Notes

There are limitations in the discussion regarding definitions of "seeing," the biological constraints of human vision, and the technological capabilities of devices designed to detect non-visible spectra.

Someone502
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Is it possible to see the radio spectra, X-ray, or microwave etc like birds can see the UV spectra? If so what might/does it look like?
Thanks
 
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i vote no.
 
Our eyes are insensitive to light at those frequencies. I don't think you can visualize a 'new' color. How would you explain to a blind person what the color red looks like?
 
Some patients have had surgery to replace the lens of their eye with an artificial lens and later reported seeing "new colors" that they could never see before. Investigation of the phenomenon revealed that these patients were seeing a little ways into the ultraviolet part of the spectrum. We had a discussion about it quite some time ago here at the forums, I will try to find it.
 
It would be biologially impossible to "see" radio or microwaves - their wavelengths are too long to be absorbed directly by cells.
 
im not saying it has to be biological
 
Someone502 said:
im not saying it has to be biological

Then what do you mean by "see"? If you mean seeing using our eyes, then that's extremely limiting. We have evolved in such a way that our eyes are only sensitive to a very limited range of EM radiation which we call the visible spectrum. We do not need to use our eyes in detecting other forms of EM radiation beyond the visible range.

The fact that we can't "see" these other spectra with our eyes somehow makes your question rather moot, doesn't it?

Zz.
 
ok let me put it this way. could there be a machine that could observe some of the other spectra? like infared with radio waves or something?
 
Have you ever seen an infra red camera or night glasses used for 'seeing' at night? Most ccd chips (in digital imaging devices) can detect some infra red. In total darkness, they will easily 'see' infra red. Point your TV remote at a video camera and press record whilst you press a button - you will 'see' and record, infra red!

Specialist devices can be used (eg by the military) to see clearly at night by viewing Infra red, ie heat. However, to see the image, this has to be converted to visible light, otherwise, we wouldn't be able to see it.
 
  • #10
And radio waves can be used to 'see' in the form of Radar.
 

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