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Category: Science/mathematics

The universe may be lopsided – new research

The universe may be lopsided – new research

By Subir Sarkar, University of Oxford The shape of the universe is not something we often think about. But my colleagues and I have published a new study suggests it could be asymmetric or lopsided, meaning not the same in every direction. Should we care about this? Well, today’s “standard cosmological model” – which describes the dynamics and structure of the entire cosmos – rests squarely on the assumption that it is isotropic (looks the same in all directions), and…

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Trump regime plans to break up ‘global mothership’ of climate science

Trump regime plans to break up ‘global mothership’ of climate science

Nature reports: The administration of US President Donald Trump intends to dismantle the National Center for Atmospheric Research (NCAR), a world-leading Earth-science centre in Boulder, Colorado. The centre’s modelling and Earth observations underpin a wide range of US and global research, especially on climate. “This facility is one of the largest sources of climate alarmism in the country,” wrote Russell Vought, Trump’s budget director, announcing the planned closure in a post yesterday on the social-media platform X. In a statement,…

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The truth that physics can no longer ignore

The truth that physics can no longer ignore

Adam Frank writes: On October 8, 2024, the field of physics was plunged into controversy. That day, the Nobel Prize in Physics was awarded for discoveries not involving black holes, cosmology, or strange new subatomic particles, but about AI. How could the discipline’s highest award go to research about machines designed to mimic human brains? Where was the physics in that? For most of the 20th century, physicists largely ignored living systems. They understood living things as machines, albeit ones…

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China’s JUNO observatory shows promise in solving neutrino mysteries

China’s JUNO observatory shows promise in solving neutrino mysteries

Scientific American reports: Trillions of neutrinos whiz through our bodies every day, pulsing from the sun, outer space and deep beneath Earth. Yet these elusive subatomic particles have proven difficult to study. That could soon change, however. Buried 700 meters beneath the rolling hills of southern China, an enormous neutrino observatory called JUNO has released its first results after a mere 59 days of operation. And so far, they are very promising, physicists say. “The physics result is already world-leading…

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What is time? Rather than something that ‘flows,’ a philosopher suggests time is a psychological projection

What is time? Rather than something that ‘flows,’ a philosopher suggests time is a psychological projection

Time isn’t an illusion, unlike optical illusions that trick your eyes. There’s nothing to ‘trick’ because it has no physical basis. BSIP/UIG Via Getty Image By Adrian Bardon, Wake Forest University “Time flies,” “time waits for no one,” “as time goes on”: The way we speak about time tends to strongly imply that the passage of time is some sort of real process that happens out there in the world. We inhabit the present moment and move through time, even…

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James Watson: Titan of science with tragic flaws

James Watson: Titan of science with tragic flaws

Jon Cohen writes: “It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material.” That famous understatement concludes the 1953 Nature article in which James Watson, then just 25, and Francis Crick announced their discovery of the double helical structure of DNA. In his later life, Watson, who died on 6 November at 97, was anything but understated. The son of a Chicago bill collector, Watson shared a…

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Northern Hemisphere absorbing more sunlight than Southern, and clouds can no longer keep the balance

Northern Hemisphere absorbing more sunlight than Southern, and clouds can no longer keep the balance

Live Science reports: Years ago, scientists noted something odd: Earth’s Northern and Southern Hemispheres reflect nearly the same amount of sunlight back into space. The reason why this symmetry is odd is because the Northern Hemisphere has more land, cities, pollution, and industrial aerosols. All those things should lead to a higher albedo — more sunlight reflected than absorbed. The Southern Hemisphere is mostly ocean, which is darker and absorbs more sunlight. New satellite data, however, suggest that symmetry is…

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Scientists uncover first evidence of the 4.5-billion-year-old ‘proto Earth’

Scientists uncover first evidence of the 4.5-billion-year-old ‘proto Earth’

Space.com reports: Scientists have identified what may be the first direct evidence of material left over from the “proto-Earth,” a primordial version of our planet that existed before a colossal moon-forming impact reshaped it forever. The study, published Tuesday (Oct. 14) in the journal Nature Geoscience, suggests that tiny chemical clues of this proto-Earth have survived deep within Earth’s rocks, essentially unaltered, for billions of years. The findings provide a rare window into the planet’s original building blocks and could…

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The war on science being led by the Republican Party

The war on science being led by the Republican Party

Ars Technica reports: We’re about a quarter of the way through the 21st century. Summers across the global north are now defined by flash floods, droughts, heat waves, uncontainable wildfires, and intensifying named storms, exactly as predicted by Exxon scientists back in the 1970s. The United States secretary of health and human services advocates against using the most effective tool we have to fight the infectious diseases that have ravaged humanity for millennia. People are eagerly lapping up the misinformation…

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The math of climate change tipping points

The math of climate change tipping points

Gregory Barber writes: In the 1960s, the Soviet climatologist and mathematician Mikhail Budyko set out to investigate the potential future of a planet on the brink of nuclear Armageddon. He started by looking some 600 million years into the past. Back then, some scientists claimed, the ancient planet was an iced-over snowball. Most researchers considered that a crackpot theory. Ice over the equator? Please. But Budkyo developed a mathematical model to back it up. If sea ice had been able…

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Trump’s Harvard cuts threaten a pillar of global basic biomedical research

Trump’s Harvard cuts threaten a pillar of global basic biomedical research

NBC News reports: For more than a century, the humble fruit fly has paved the way for many critical scientific breakthroughs. This tiny insect helped researchers figure out that X-rays can cause genetic mutations. That genes are passed on from parent to child through chromosomes. That a gene called period helps our bodies keep time — and that disruptions to that internal clock can lead to jet lag and increased risk for neurological and metabolic diseases. Those discoveries, along with…

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A massive eruption 74,000 years ago affected the whole planet – archaeologists use volcanic glass to figure out how people survived

A massive eruption 74,000 years ago affected the whole planet – archaeologists use volcanic glass to figure out how people survived

Collecting microscopic glass samples at Border Cave in the Lebombo Mountains in South Africa. Katherine Elmes By Jayde N. Hirniak, Arizona State University If you were lucky 74,000 years ago, you would have survived the Toba supereruption, one of the largest catastrophic events that Earth has seen in the past 2.5 million years. While the volcano is located in what’s now Indonesia, living organisms across the entire globe were potentially affected. As an archaeologist who specializes in studying volcanic eruptions…

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We are witnessing a scientific superpower destroy itself

We are witnessing a scientific superpower destroy itself

Stephen Greenblatt writes: The Trump administration’s assault on America’s universities by cutting billions of dollars of federal support for scientific and medical research has called up from somewhere deep in my memory the phrase “duck and cover.” These were words drilled into American schoolchildren in the 1950s. We heard them on television, where they accompanied a cartoon about a wise turtle named Bert who withdrew into his shell at any sign of danger. In class, when our teachers gave the…

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What chaos at the CDC could mean for the rest of the world

What chaos at the CDC could mean for the rest of the world

By Michael Toole, Burnet Institute Ever since Robert F Kennedy (RFK) Jr was appointed United States Secretary of Health and Human Services, the Centers for Disease Control and Prevention (CDC) has been under pressure to abandon its traditional evidence-based approach to public health in America and across the world. That pressure came to a head last week with the sacking of recently appointed CDC director Susan Monarez. According to her lawyers, the longtime government scientist, who had been in the…

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Mapping France’s ‘Great Fear of 1789’ shows how misinformation spreads like a virus

Mapping France’s ‘Great Fear of 1789’ shows how misinformation spreads like a virus

Phys.org reports: Since the rise of the internet and social media, society has become well-acquainted with the idea of “virality” as the rapid spread of ideas and information (or misinformation). The relatively recent COVID-19 pandemic also reminded modern society of how rapidly viruses spread and how they impact society. As it turns out, the idea of information spreading like a virus is not just an apt metaphor—information virality can also be scientifically modeled in the same way as an actual…

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Scientists are flocking to Bluesky

Scientists are flocking to Bluesky

Wired reports: Marine biologist and conservationist David Shiffman was an early power user and evangelist for science engagement on the social media platform formerly known as Twitter. Over the years, he trained more than 2,000 early career scientists on how to best use the platform for professional goals: networking with colleagues, sharing new scientific papers, and communicating with interested members of the public. But when Elon Musk bought Twitter in 2022, renaming it X, changes to both the platform’s algorithm…

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