Tag: Quantum Stuff

This article is part of “Innovations In: Alzheimer’s Disease” an editorially independent special report that was produced with financial support from Eisai. About four years ago Clifford Harper, then 85, announced to his wife that he was quitting alcohol. Harper wasn’t a heavy drinker but enjoyed a good Japanese whiskey. It was the first of… Continue reading Can Fighting Racism Help Prevent Alzheimer’s? Scientists Think So

First things first: What is SAT? It uses something called a propositional formula, which you can imagine as a very big sudoku board. In every cell, you only have two options: only one or zero, standing for true or false. You also have the rules, or constraints, about how many zeros or ones can be… Continue reading To Have Machines Make Math Proofs, Turn Them Into a Puzzle

People in the U.S. throw away at least 17 million tons of textiles every year—about 100 pounds of clothing per person. At the same time, unsold blouses, jackets, and other fashion-industry leftovers end up in dumps such as the one in Chile’s Atacama Desert, so vast as to be visible from space. Many of these… Continue reading Fast Fashion Must Go Out of Style

This article is part of “Innovations In: Alzheimer’s Disease” an editorially independent special report that was produced with financial support from Eisai. One of neurologist Anelyssa D’Abreu’s least favorite tasks is giving her patients a dreaded diagnosis: early-stage Alzheimer’s disease. But it’s not quite as bad as it used to be. Today when they ask,… Continue reading Doctors Are Torn over Controversial New Alzheimer’s Treatments. Here’s Why

A few days after the initial experiment, the team tested participants’ memory by having them look at more Mooney images online, including some they had seen before. Participants were better able to remember prior images that they had rated highly on the three aspects of insight. This suggested that the insight-memory advantage was real, but… Continue reading How Your Brain Creates ‘Aha’ Moments and Why They Stick

In 2016 billionaire Yuri Milner hosted a press conference at One World Observatory, the atrium topping the slick skyscraper at the center of the rebuilt World Trade Center complex. Milner had grown rich investing in tech start-ups, and now he wanted to spend some of that money on sending a spaceship to the stars. He… Continue reading A $100-Million Mission to Another Star Just Disappeared

Standing in the middle of a field, we can easily forget that we live on a round planet. We’re so small in comparison to the Earth that from our point of view, it looks flat. The world is full of such shapes — ones that look flat to an ant living on them, even though… Continue reading What Is a Manifold? | Quanta Magazine

Mark Harmon crouches low next to log number 219: a moss-covered western hemlock tree trunk, five meters long, lying dead on the ground in the lush green woods. It’s marked by a thin aluminum tag. The forest ecologist leans in close, his unruly white beard nearly brushing against the decomposing cylinder. Dark, flaky patches on… Continue reading He’s Spent 40 Years Studying Dead Trees—Here’s What He’s Found

September 16, 2025 3 min read October 2025: Science History from 50, 100 and 150 Years Ago Charming quarks; the first Batman signal By Mark Fischetti 1975, Advent of Tomography: “Medicine is making the internal structures of the body far more accessible by noninvasive procedures. One, called reconstruction from projections, is coming into service. A… Continue reading October 2025: Science History from 50, 100 and 150 Years Ago