共找到 20 条结果
From Salt Lake City to New York City, parents are demanding more sway over the digital tools that schools give children
YouTube’s search and recommendation algorithms are driving children to Russian-language content even when they seek out videos in Kyrgyz, creating a cultural shift that concerns some parents
A group of undergraduate students pulled off something remarkable: they built their own dark matter detector and used it to probe one of physics’ biggest mysteries。 Working with limited resources but plenty of creativity, they designed a stripped-down experiment to hunt for axions — hypothetical particles that could make up dark matter
Physicists are rethinking one of quantum mechanics’ biggest puzzles: how fuzzy possibilities become definite reality。 New research suggests that spontaneous “collapse” processes—possibly linked to gravity—could subtly blur time itself。 This wouldn’t affect clocks we use today, but it reveals a hidden limit to how precise time can ever be
For decades, psychologists have debated whether the human mind can be explained by one unified theory or must be broken into separate parts like memory and attention。 A recent AI model called Centaur seemed to offer a breakthrough, claiming it could mimic human thinking across 160 different cognitive tasks。 But new research is challenging that bold
Scientists have pulled off a first: teleporting a photon’s state between two separate quantum dots。 This was done over a 270-meter open-air link, proving quantum information can travel between independent devices。 The achievement marks a key step toward building quantum networks for ultra-secure communication
Scientists have unveiled a breakthrough imaging method that can capture the hidden details of events unfolding in trillionths of a second。 This new technique doesn’t just track how bright something is—it also reveals subtle structural changes that were previously invisible, all in a single shot。 By effectively turning ultrafast phenomena into detai
Acoustic fire suppression goes commercial
A new kind of memory device may finally solve the problem of overheating and battery drain in electronics。 By shrinking components to an extreme scale and redesigning their structure, researchers found a way to reduce energy loss instead of increasing it。 The result is a tiny memory unit that improves as it gets smaller—something once thought impos
Physicists have taken a major step toward using AI not just to analyze data, but to uncover entirely new laws of nature。 By combining a specially designed neural network with precise 3D tracking of particles in a dusty plasma—a strange “fourth state of matter” found from space to wildfires—the team revealed hidden patterns in how particles interact
In the chaotic first moments after the Big Bang, ripples in spacetime may have done more than just echo through the cosmos—they could have helped create dark matter itself。 New research suggests that faint, ancient gravitational waves might have transformed into particles that eventually became the invisible substance shaping galaxies today
A light-sensitive crystal is opening the door to a new era of “light-written” technology。 Arsenic trisulfide can be reshaped and permanently altered using simple light, creating ultra-fine optical patterns without expensive manufacturing tools。 Scientists even etched a nanoscale portrait of Einstein and high-density patterns that could act as secur
Scientists have developed a fuel cell that uses microbes in soil to produce electricity。 The device can power underground sensors for tasks like monitoring moisture or detecting touch, without needing batteries or solar panels。 It works in both dry and wet conditions and even lasts longer than similar technologies
Deep inside planets like Uranus and Neptune, scientists may have uncovered a bizarre new state of matter where atoms behave in unexpected ways。 Advanced simulations suggest that carbon and hydrogen, under crushing pressures and scorching temperatures, can form a strange hybrid phase—part solid, part fluid—where hydrogen atoms spiral through a rigid