Category: Seeing
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Colour where there is no colour… A cosmos where there is no cosmos…
Engineers have found that under the right conditions, ordinary clear water droplets on a transparent surface can produce brilliant colors, without the addition of inks or dyes. By tuning size, illumination angle, and curvature, MIT engineers can produce brilliant colors, in patterns they can predict, in otherwise transparent droplets. (1) Under the right angle, everything…
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Colour-blind: A surprisingly common problem… [White-balancing red skies]
Multiple wildfires have ravaged the western United States in the past month, scattering particles of ash and smoke into the air. On Wednesday, residents across the West, woke up to a dark, bronzed sky that nearly shut out all daylight. But as people tried to capture the scene, many noticed a strange phenomenon: Certain photographs…
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Past experiences. Looking at yourself…
Past experiences shape what we see more than what we are looking at now. A new study argues that humans recognize what they are looking at by combining current sensory stimuli with comparisons to images stored in memory. (1) Seeing what you see. Only because you have seen other things before. Go back. And try…
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Hallucinations… Living… Senses as deprivation of your nature…
One hundred billion or so neurons are also incredibly fragile. If the tiniest thing goes wrong with a particular connection – maybe something misfires, or a certain neural pathway is blocked – things can fall apart very quickly. And, oddly enough, even without any injuries or structural malfunctions, the human brain can get weird all…
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Wanting to “see”. Missing the obvious. (Open your heart to the darkness)
Inspired by the human eye, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an adaptive metalens, that is essentially a flat, electronically controlled artificial eye. The adaptive metalens simultaneously controls for three of the major contributors to blurry images: focus, astigmatism, and image shift. The research was…
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