3D Mathematical Space for Mapping Human Color Perception

New research upends 100-year-old understanding of color perception

This visualization captures the 3D mathematical space used to map human color perception. A new mathematical representation finds that line segments representing distances between widely separated colors do not stack correctly using previously accepted geometry. The research contradicts longstanding assumptions and will improve various practical applications of color theory.Image credit: Los Alamos National Laboratory A …

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Polio detected in sewage in New York City, suggesting virus is spreading

NEW YORK (AP) — The virus that causes polio has been found in wastewater in New York City, health officials said Friday, in another sign that the disease, unseen in the U.S. in a decade, is unvaccinated spread quietly among the crowd. . Health authorities in the city, New York state and the federal government …

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Computer model shows how keyhole-shaped sockets distribute forces compared to round sockets

Not just small arms: Tyrannosaurus rex also had super-small eyes to accommodate its big bite

powerful jaw Tyrannosaurus Rex They held together with such force that they would split the bones of dinosaur prey.But for such a powerful bite, the king Dinosaur had to do one Evolution Tradeoff: It has to accommodate smaller eyes. Based on an analysis of 410 fossil specimens of reptiles from the Mesozoic Era (2.52 to …

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The artist's vision for 2021 offers a close-up of Betelgeuse's irregular surface and its giant dynamic bubbles, dotted with distant stars in the background.

Betelgeuse is bouncing back after peaking in 2019

enlarge / The artist’s vision for 2021 offers a close-up of Betelgeuse’s irregular surface and its giant dynamic bubbles, dotted with distant stars in the background. European Southern Observatory Astronomers are still making new discoveries about the red supergiant star Betelgeuse, which experienced a mysterious “dimming” a few years ago. This dimming was ultimately attributed …

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An artist's interpretation of early humans hunting mammoths (Mammuthus primigenius).

Mysterious mineral on Mars was spewed out by an explosive eruption 3 billion years ago

Silver dust drilled from a rock by NASA’s Curiosity rover on July 30, 2015. Analysis of the dust revealed that it contained the mineral tridymite, which was very unexpected. (Image credit: NASA/JPL-Caltech/MSSS) (opens in new tab) A mysterious Martian mineral that has puzzled scientists since its discovery seven years ago may have been ejected in …

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Meteorite provides record of asteroid 'spitting out' pebbles

Meteorite provides record of asteroid ‘spitting out’ pebbles

The main mass of the Aguas Zakas meteorite in the Field Museum.Credit: John Weinstein, Field Museum In 2019, NASA’s OSIRIS-REx spacecraft sent back images of a never-before-seen geological phenomenon: pebbles flying off the surface of asteroid Bennu. The asteroid appears to be shooting out of a marble-sized rock mass. Scientists have never seen this behavior …

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Tiny Tina’s Wonderlands’ new Blightcaller class is a little weird

screenshot: gearbox For those who like to grind, Little Tina’s Wonderland Yes Borderlands Heaven. For those who don’t, it’s a solid shooter that lacks the sharp hooks of real live service games. I imagine this dynamic will remain the same after the game’s latest expansion, which adds the game’s first new class since its release: …

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Antarctica in trouble

photo: David Taylor/Science Photo Library (Associated Press) Antarctica is home 90% of the world’s fresh water, trapped in the continent’s massive ice sheet — and the stability of much of that ice is under serious threat from global warming.Two studies published in journals This week Nature will look at how climate change is changing the …

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A decade of warnings about growing monkeypox threat ignored

Placeholder when loading article action More than a decade of warnings in eerie echoes of coronavirus pandemic Before the global outbreak of human monkeypox, it has now spread to more than 31,700 cases – about One third are in the United States. In 2010, researchers reported a 20-fold increase in monkeypox cases in the Democratic …

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