RECENT ARTICLES
Physicists Pin Down Nuclear Reaction From Moments After the Big Bang
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeThe newly-measured rate of a key nuclear fusion process from the Big Bang matches the picture of the universe 380,000 years later.November 11, 2020In a secluded laboratory buried under a mountain in Italy, physicists have re-created a nuclear reaction that happened between two and three minutes after the Big Bang.Their measurement of the reaction rate, , nails down the most uncertain factor in a sequence of steps known as Big Bang nucleosynthesis that...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeThe newly-measured rate of a key nuclear fusion process from the Big Bang matches the picture of the universe 380,000 years later.November 11, 2020In a secluded laboratory buried under a mountain in Italy, physicists have re-created a nuclear reaction that happened between two and three minutes after the Big Bang.Their measurement of the reaction rate, , nails down the most uncertain factor in a sequence of steps known as Big Bang nucleosynthesis that...WW…
Black Holes Help Prove That a Special Kind of Space-Time Is Unstable
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeEinstein’s equations describe three canonical configurations of space-time. Now one of these three — important in the study of quantum gravity — has been shown to be inherently unstable.May 11, 2020Four years ago, while still a graduate student at Princeton University, took on a problem that likely wasn’t going to pan out. His adviser asked him to mathematically prove that a certain configuration of space-time is unstable — to show, in other words, that...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeEinstein’s equations describe three canonical configurations of space-time. Now one of these three — important in the study of quantum gravity — has been shown to be inherently unstable.May 11, 2020Four years ago, while still a graduate student at Princeton University, took on a problem that likely wasn’t going to pan out. His adviser asked him to mathematically prove that a certain configuration of space-time is unstable — to show, in other words, that...WW…
Machines Beat Humans on a Reading Test. But Do They Understand? | Quanta Magazine
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeA tool known as BERT can now beat humans on advanced reading-comprehension tests. But it's also revealed how far AI has to go. October 17, 2019In the fall of 2017, , a computational linguist at New York University, figured that computers still weren’t very good at understanding the written word. Sure, they had become decent at simulating that understanding in certain narrow domains, like automatic translation or sentiment analysis (for example,...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeA tool known as BERT can now beat humans on advanced reading-comprehension tests. But it's also revealed how far AI has to go. October 17, 2019In the fall of 2017, , a computational linguist at New York University, figured that computers still weren’t very good at understanding the written word. Sure, they had become decent at simulating that understanding in certain narrow domains, like automatic translation or sentiment analysis (for example,...WW…
Major Quantum Computing Advance Made Obsolete by Teenager | Quanta Magazine
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .Agree18-year-old Ewin Tang has proven that classical computers can solve the “recommendation problem” nearly as fast as quantum computers. The result eliminates one of the best examples of quantum speedup.July 31, 2018A teenager from Texas has taken quantum computing down a notch. In a paper earlier this month, 18-year-old Ewin Tang proved that ordinary computers can solve an important computing problem with performance potentially .In its most practical...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .Agree18-year-old Ewin Tang has proven that classical computers can solve the “recommendation problem” nearly as fast as quantum computers. The result eliminates one of the best examples of quantum speedup.July 31, 2018A teenager from Texas has taken quantum computing down a notch. In a paper earlier this month, 18-year-old Ewin Tang proved that ordinary computers can solve an important computing problem with performance potentially .In its most practical...WW…
The NASA Engineer Who’s a Mathematician at Heart
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeChristine Darden worked at NASA for 40 years, helping make supersonic planes quieter and forging a path for women to follow in her footsteps.January 19, 2021Just before World War II, the American civil rights activist persuaded President Roosevelt to end discrimination on the basis of race, color and national origin in defense-industry employment. Not long after, in 1941, Roosevelt issued , prompting several agencies, including the National Advisory...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeChristine Darden worked at NASA for 40 years, helping make supersonic planes quieter and forging a path for women to follow in her footsteps.January 19, 2021Just before World War II, the American civil rights activist persuaded President Roosevelt to end discrimination on the basis of race, color and national origin in defense-industry employment. Not long after, in 1941, Roosevelt issued , prompting several agencies, including the National Advisory...WW…
What Is a Particle?
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeIt has been thought of as many things: a pointlike object, an excitation of a field, a speck of pure math that has cut into reality. But never has physicists’ conception of a particle changed more than it is changing now.November 12, 2020Given that everything in the universe reduces to particles, a question presents itself: What are particles?The easy answer quickly shows itself to be unsatisfying. Namely, electrons, photons, quarks and other...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeIt has been thought of as many things: a pointlike object, an excitation of a field, a speck of pure math that has cut into reality. But never has physicists’ conception of a particle changed more than it is changing now.November 12, 2020Given that everything in the universe reduces to particles, a question presents itself: What are particles?The easy answer quickly shows itself to be unsatisfying. Namely, electrons, photons, quarks and other...WW…
Dark Matter Experiment Finds Unexplained Signal
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeResearchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics.June 17, 2020The physicists who run the world’s most sensitive experimental search for dark matter have seen something strange. They have uncovered an inside their detector that could fit the profile of a hypothetical dark matter particle called an axion. Alternately, the data could be explained by novel properties of...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeResearchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics.June 17, 2020The physicists who run the world’s most sensitive experimental search for dark matter have seen something strange. They have uncovered an inside their detector that could fit the profile of a hypothetical dark matter particle called an axion. Alternately, the data could be explained by novel properties of...WW…
‘Unicorn’ Discovery Points to a New Population of Black Holes
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeSmall black holes were nowhere to be found, leading astronomers to wonder if they didn’t exist at all. Now a series of findings, including a “unicorn” black hole, has raised hopes of solving the decade-long mystery.January 27, 2021Almost a decade ago, and her colleagues noticed something odd. While a variety of possible black holes had been found in our galaxy, none appeared to fall below a certain size. “There seemed to be a dearth of black holes below...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeSmall black holes were nowhere to be found, leading astronomers to wonder if they didn’t exist at all. Now a series of findings, including a “unicorn” black hole, has raised hopes of solving the decade-long mystery.January 27, 2021Almost a decade ago, and her colleagues noticed something odd. While a variety of possible black holes had been found in our galaxy, none appeared to fall below a certain size. “There seemed to be a dearth of black holes below...WW…
A Physicist’s Approach to Biology Brings Ecological Insights
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeThe physicist Jeff Gore tests theories about microbe communities experimentally and finds new rules governing ecological stability.October 13, 2020Last year, strode down a short hallway from his office to in one of the university buildings on Technology Square in Cambridge, Massachusetts. Machines hummed, and a faint chlorine smell provided assurance that things were being kept properly sterile. Lab counters were strewn with pipettes and roughly...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeThe physicist Jeff Gore tests theories about microbe communities experimentally and finds new rules governing ecological stability.October 13, 2020Last year, strode down a short hallway from his office to in one of the university buildings on Technology Square in Cambridge, Massachusetts. Machines hummed, and a faint chlorine smell provided assurance that things were being kept properly sterile. Lab counters were strewn with pipettes and roughly...WW…
Arrows of Time
We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeAustralia’s first inhabitants, the ancestors of today’s aboriginal peoples, are believed to have embraced a timeless view of nature, in which the present and past are intimately connected. The spirits of long-dead ancestors, for example, were believed to inhabit the living. These spirits reflected a long-ago golden age sometimes known as the Dreamtime.A number of civilizations, including those in ancient Iran as well as Greece and Rome, embodied time in...…We care about your data, and we'd like to use cookies to give you a smooth browsing experience. Please agree and read more about our .AgreeAustralia’s first inhabitants, the ancestors of today’s aboriginal peoples, are believed to have embraced a timeless view of nature, in which the present and past are intimately connected. The spirits of long-dead ancestors, for example, were believed to inhabit the living. These spirits reflected a long-ago golden age sometimes known as the Dreamtime.A number of civilizations, including those in ancient Iran as well as Greece and Rome, embodied time in...WW…