Category: Seeing
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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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MAGNIFY! (Do you trust your eyes?) [against senses… again]
Extremely distant galaxies are usually too faint to be seen, even by the largest telescopes. But nature has a solution: gravitational lensing, predicted by Albert Einstein and observed many times by astronomers. However recently, an international team of astronomers, led by Harald Ebeling of the Institute for Astronomy at the University of Hawaii at Manoa,…
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Seeing better. Through not seeing. Descartes and the wisdom of Silenus…
Visual acuity is normally thought to be dictated by the shape and condition of the eye but these new findings suggest that it may also be influenced by perceptual processes in the brain. "We discovered that visual acuity - the ability to see fine detail - can be enhanced by an illusion known as the…
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Filling in the gaps (of the blind spot). Believing (what is not there). Lies. Truth.
To make sense of the world, humans and animals need to combine information from multiple sources. This is usually done according to how reliable each piece of information is. For example, to know when to cross the street, we usually rely more on what we see than what we hear - but this can change…
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