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Category: Science/mathematics

Lunch with Freeman Dyson

Lunch with Freeman Dyson

Siobhan Roberts writes: Lunchtime in the cafeteria at the Institute for Advanced Study in Princeton, N.J. — sometimes called the Institute for Advanced Dining — is a heady scene, and Freeman Dyson, who died last week at 96, was a regular fixture, arriving with reading material tucked under his arm. One day about 10 years ago, Dr. Dyson put down his tray of food at the physics table and joined the conversation. Nima Arkani-Hamed, a professor in the institute’s School…

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Coronavirus is what you get when you ignore science

Coronavirus is what you get when you ignore science

Farhad Manjoo writes: Let us pray, now, for science. Pray for empiricism and for epidemiology and for vaccines. Pray for peer review and controlled double-blinds. For flu shots, herd immunity and washing your hands. Pray for reason, rigor and expertise. Pray for the precautionary principle. Pray for the N.I.H. and the C.D.C. Pray for the W.H.O. And pray not just for science, but for scientists, too, as well as their colleagues in the application of science — the tireless health…

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The woman the Mercury astronauts couldn’t do without

The woman the Mercury astronauts couldn’t do without

Katherine Johnson died on February 24 at the age of 101. In 2016, Margot Lee Shetterly wrote: It had always been Katherine Goble’s great talent to be in the right place at the right time. In August 1952, 12 years after leaving graduate school to have her first child, that right place was in Marion, Virginia, at the wedding of her husband, Jimmy Goble’s, little sister Patricia. Pat, a vivacious college beauty queen just two months graduated from Virginia State…

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Climate models used to forecast warming have suddenly started giving us less time

Climate models used to forecast warming have suddenly started giving us less time

Bloomberg reports: There are dozens of climate models, and for decades they’ve agreed on what it would take to heat the planet by about 3° Celsius. It’s an outcome that would be disastrous—flooded cities, agricultural failures, deadly heat—but there’s been a grim steadiness in the consensus among these complicated climate simulations. Then last year, unnoticed in plain view, some of the models started running very hot. The scientists who hone these systems used the same assumptions about greenhouse-gas emissions as…

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In science, we forget the place of human experience at our peril

In science, we forget the place of human experience at our peril

Adam Frank, Marcelo Gleiser, and Evan Thompson write: The problem of time is one of the greatest puzzles of modern physics. The first bit of the conundrum is cosmological. To understand time, scientists talk about finding a ‘First Cause’ or ‘initial condition’ – a description of the Universe at the very beginning (or at ‘time equals zero’). But to determine a system’s initial condition, we need to know the total system. We need to make measurements of the positions and…

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EPA’s scientific advisers warn its regulatory rollbacks clash with established science

EPA’s scientific advisers warn its regulatory rollbacks clash with established science

The Washington Post reports: The Environmental Protection Agency is pushing ahead with sweeping changes to roll back environmental regulations despite sharp criticism from a panel of scientific advisers, most of whom were appointed by President Trump. The changes would weaken standards that govern waterways and wetlands across the country, as well as those that dictate gas mileage for U.S. automobiles. Another change would restrict the kinds of scientific studies that can be used when writing new environmental regulations, while a…

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The histories hidden in the periodic table

The histories hidden in the periodic table

Neima Jahromi writes: The story of the fifteenth element began in Hamburg, in 1669. The unsuccessful glassblower and alchemist Hennig Brandt was trying to find the philosopher’s stone, a mythical substance that could turn base metals into gold. Instead, he distilled something new. It was foamy and, depending on the preparation, yellow or black. He called it “cold fire,” because it glowed in the dark. Interested parties took a look; some felt that they were in the presence of a…

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Thoreau, the scientist

Thoreau, the scientist

Curt Stager writes: Much more has been said and written about Thoreau’s philosopher-poet side than his naturalist side, but as a scientist I am more interested in the latter. The journals that he kept from 1837 to 1861 were so full of natural history observations that they might have become a major scientific work if he had not died of a lung ailment at age 44. He probably thought so, too. Two months before his death in 1862 he wrote…

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The scammy world of DNA test startups

The scammy world of DNA test startups

Futurism reports: In the spring of 2017, a college student named Mary spit into a tube and sent it to the DNA testing company Ancestry, which analyzed it and sent back a breakdown of her family history. But Mary wanted to know more. The human genome contains, in theory, an extraordinary wealth of pre-programmed information about who we are and who we might become: whether she was at risk for the same types of cancer that killed her parents, for…

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A big-data approach to history could help save the future

A big-data approach to history could help save the future

Laura Spinney writes: In its first issue of 2010, the scientific journal Nature looked forward to a dazzling decade of progress. By 2020, experimental devices connected to the internet would deduce our search queries by directly monitoring our brain signals. Crops would exist that doubled their biomass in three hours. Humanity would be well on the way to ending its dependency on fossil fuels. A few weeks later, a letter in the same journal cast a shadow over this bright…

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The death of old scientists clears the way for new advances

The death of old scientists clears the way for new advances

Veronique Greenwood writes: New ideas advance in science not just because they are true, but because their opponents die, physicist Max Planck wrote in 1948. He was referring to a fundamental theory that, at the time, provoked a nasty feud, yet today is taught in nearly every high school physics classroom. The belief that science advances one funeral at a time is the kind of folk mythology in which any researcher might indulge in a discouraging moment, says Kevin Zollman,…

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How science has shifted our sense of identity

How science has shifted our sense of identity

Nathaniel Comfort writes: In the iconic frontispiece to Thomas Henry Huxley’s Evidence as to Man’s Place in Nature (1863), primate skeletons march across the page and, presumably, into the future: “Gibbon, Orang, Chimpanzee, Gorilla, Man.” Fresh evidence from anatomy and palaeontology had made humans’ place on the scala naturae scientifically irrefutable. We were unequivocally with the animals — albeit at the head of the line. Nicolaus Copernicus had displaced us from the centre of the Universe; now Charles Darwin had…

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New evidence that an extraterrestrial collision 12,800 years ago triggered an abrupt climate change for Earth

New evidence that an extraterrestrial collision 12,800 years ago triggered an abrupt climate change for Earth

The muck that’s been accumulating at the bottom of this lake for 20,000 years is like a climate time capsule. Christopher R. Moore, CC BY-ND By Christopher R. Moore, University of South Carolina What kicked off the Earth’s rapid cooling 12,800 years ago? In the space of just a couple of years, average temperatures abruptly dropped, resulting in temperatures as much as 14 degrees Fahrenheit cooler in some regions of the Northern Hemisphere. If a drop like that happened today,…

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Scientists endorse mass civil disobedience to force climate action

Scientists endorse mass civil disobedience to force climate action

Reuters reports: Almost 400 scientists [now 1,140] have endorsed a civil disobedience campaign aimed at forcing governments to take rapid action to tackle climate change, warning that failure could inflict “incalculable human suffering.” In a joint declaration, climate scientists, physicists, biologists, engineers and others from at least 20 countries broke with the caution traditionally associated with academia to side with peaceful protesters courting arrest from Amsterdam to Melbourne. Wearing white laboratory coats to symbolize their research credentials, a group of…

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The chemistry at the heart of the Universe

The chemistry at the heart of the Universe

Caleb A. Scharf writes: It’s a relatively little-known fact outside of astrophysics that the key to the first stars in the universe, and the earliest structures condensing out of the primordial murk, was chemistry. Specifically, the key was the formation of molecular hydrogen or H2. A pair of atoms bonded together and capable of rotating and vibrating. A few years ago I wrote about some of the details in this column. In brief, without the formation of molecular hydrogen it’s…

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New study suggests subterranean continents in Earth’s mantle untouched for more than 4 billion years

New study suggests subterranean continents in Earth’s mantle untouched for more than 4 billion years

GeoSpace reports: Ancient, distinct, continent-sized regions of rocks, isolated since before the collision that created the Moon 4.5 billion years ago, exist hundreds of miles below the Earth’s crust, offering a window into the building blocks of our planet, according to new research. The new study in the AGU Journal Geochemistry, Geophysics, Geosystems used models to trace the location and origin of volcanic rock samples found throughout the world back to two solid continents in the deep mantle. The new…

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