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focused on a part of cognition called working memory, the brain system that holds information for short periods while we are making decisions or performing calculations.

One factor in this decline is thought to be a disconnection between two brain networks, known as the prefrontal and temporal regions.

After the intervention, working memory in the older adults improved to match the younger group and the effect appeared to last for 50 minutes after the stimulation.

for hurting others relies on a part of neural anatomy, one that likely evolved before the brain regions responsible for analysis and planning.

hypothetical;

The Aha! Moment: The Science Behind Creative Insight

For most of us, it usually occurs at the most inopportune times; never when we’re searching for it.

To Archimedes, it happened in the bathtub. Newton experienced it while wandering an apple orchard. Arthur Fry: church. Each encountered an epiphany, that powerful moment of spontaneous insight. Archimedes shouted Eureka! upon realizing how to calculate density and volume; to Newton came the law of universal gravity; to Arthur Fry, Post-it notes.

Two basic types of lying: white and strategic

the urge was overwhelming, and he transgressed, taking the calculated risk of being caught, never anticipating the honey bee.

None of them were really lying, just interpreting the same information in different ways.

Radio telescopes are good probes of star formation. But until now, they haven’t been sensitive enough to see radio waves coming from the vast majority of galaxies that produced stars during the peak of star production, an epoch roughly 10 billion years ago known as cosmic noon (SN: 6/20/14).

In that image, more than 17,000 pinpoints of radio energy — nearly every one a star-forming galaxy — fill a patch of sky that, as seen from Earth, could be covered by about five full moons.

What’s more, he says, there are a little less than twice as many of these sources as expected, suggesting that star formation was much higher around cosmic noon than predicted by calculations based on infrared, optical and ultraviolet data

However, there remains many fascinating and unanswered questions when it comes to light, many of which arise from its dual nature. For instance, how is it that light can be apparently without mass, but still behave as a particle? And how can it behave like a wave and pass through a vacuum, when all other waves require a medium to propagate?

This included rejecting Aristotle’s theory of light, which viewed it as being a disturbance in the air (one of his four “elements” that composed matter), and embracing the more mechanistic view that light was composed of indivisible atoms

In Young’s version of the experiment, he used a slip of paper with slits cut into it, and then pointed a light source at them to measure how light passed through it

the pace of improvement in technology would become a runaway phenomenon that would transform all aspects of human civilization.

the structure and functioning of the human brain is actually quite simple, a basic unit of cognition repeated millions of times. Therefore, creating an artificial brain will not require simulating the human brain at every level of detail. It will only require reverse engineering this basic repeating unit.

You probably know the broad outline of the story: 66 million years ago, a giant meteorite landed in what is now the Gulf of Mexico, and ended the dinosaurs. This year, various teams of scientists, working independently, helped fill in the picture of exactly what happened on that fateful day.

An exhaustive analysis of hundreds of bird species in the United States and Canada contained a warning: The majority of bird species are in decline, many by huge numbers. The likely culprits? Habitat loss and pesticides

Quantum computing had a big year. Google claimed to have reached a long-sought breakthrough called “quantum supremacy,” allowing computers to perform calculations at inconceivable speeds.

The record 3.3 million jobless claims reported Thursday mark the beginning of an economic crisis facing American workers and businesses — a slump, experts say, that will only end when the coronavirus pandemic is contained.

Although no official figures exist yet, the unemployment rate has likely jumped to at least 5.5 percent, says economist Martha Gimbel of Schmidt Futures, a level not seen since 2015 and up from 3.5 percent in February.“The most terrifying part about this is this is likely just the beginning of the layoffs,” Gimbel said

The bill, which gives most Americans checks worth $1,200 or more and provides billions in low-cost loans to businesses, is likely to provide a lifeline to workers and companies facing devastation, but it won’t stop a severe recession nor be adequate to sustain workers if the coronavirus health crisis lasts more than a month or two.

Albert Einstein is justly famous for devising his theory of relativity, which revolutionized our understanding of space, time, gravity, and the universe. Relativity also showed us that matter and energy are just two different forms of the same thing—a fact that Einstein expressed as E=mc2, the most widely recognized equation in history.

Credit for inventing paper towels goes to the Scott Paper Company of Pennsylvania, which introduced the disposable product in 1907 as a more hygienic alternative to cloth towels. But in the very first physics article that Einstein ever published, he did analyze wicking: the phenomenon that allows paper towels to soak up liquids even when gravity wants to drag the fluid downward.

Again, Einstein didn’t invent solar cells; the first crude versions of them date back to 1839. But he did sketch out their basic principle of operation in 1905. His starting point was a simple analogy: If matter is lumpy—that is, if every substance in the universe consists of atoms and molecules—then surely light must be lumpy as well.

“Nothing is fixed. All is in flux,” physicist Alan Lightman wrote in his soaring meditation on how to live with our longing for absolutes in a relative universe, reminding us that all the physical evidence gleaned through millennia of scientific inquiry indicates the inherent inconstancy of the cosmos.

This awareness, so unnerving against the backdrop of our irrepressible yearning for constancy and permanence, was first unlatched when the ancients began suspecting that the Earth, rather than being the static center of the heavens it was long thought to be, is in motion, right beneath our feet. But it took millennia for the most disorienting evidence of inconstancy to dawn — the discovery that the universe itself is in flux, constantly expanding, growing thinner and thinner as stars grow farther and farther apart.

If the universe is constantly expanding, to trace it backward along the arrow of time is to imagine it smaller and smaller, all the way down to the seeming nothingness that banged into the somethingness within which everything exists.

Your brain’s most important job isn’t thinking; it’s running the systems of your body to keep you alive and well. According to recent findings in neuroscience, even when your brain does produce conscious thoughts and feelings, they are more in service to the needs of managing your body than you realize.

Your brain runs your body using something like a budget. A financial budget tracks money as it’s earned and spent. The budget for your body tracks resources like water, salt and glucose as you gain and lose them

Every thought you have, every feeling of happiness or anger or awe you experience, every kindness you extend and every insult you bear or sling is part of your brain’s calculations as it anticipates and budgets your metabolic needs

What's that worn-out phrase? Shouting into the wind? Well, after a decade of rising pollution, failed politics and worsening disasters, it seems the many, many of us who care about the climate crisis increasingly are shouting into the hurricane, if not the apocalypse.

On the cusp of 2020, the state of the planet is far more dire than in 2010. Preserving a safe and healthy ecological system is no longer a realistic possibility. Now, we're looking at less bad options, ceding the fact that the virtual end of coral reefs, the drowning of some island nations, the worsening of already-devastating storms and the displacement of millions -- they seem close to inevitable. The climate crisis is already costly, deadly and deeply unjust, putting the most vulnerable people in the world, often who've done the least to cause this, at terrible risk.

There are two numbers you need to understand to put this moment in perspective.The first is 1.5. The Paris Agreement -- the international treaty on climate change, which admittedly is in trouble, but also is the best thing we've got -- sets the goal of limiting warming to 1.5 or, at most, below 2 degrees Celsius of warming.

im Shultz tried everything he could think of to stop facial recognition technology from entering the public schools in Lockport, a small city 20 miles east of Niagara Falls. He posted about the issue in a Facebook group called Lockportians. He wrote an Op-Ed in The New York Times. He filed a petition with the superintendent of the district, where his daughter is in high school.But a few weeks ago, he lost. The Lockport City School District turned on the technology to monitor who’s on the property at its eight schools, becoming the first known public school district in New York to adopt facial recognition, and one of the first in the nation.

Proponents call it a crucial crime-fighting tool, to help prevent mass shootings and stop sexual predators. Robert LiPuma, the Lockport City School District’s director of technology, said he believed that if the technology had been in place at Marjory Stoneman Douglas High School in Parkland, Fla., the deadly 2018 attack there may never have happened.

“You had an expelled student that would have been put into the system, because they were not supposed to be on school grounds,” Mr. LiPuma said. “They snuck in through an open door. The minute they snuck in, the system would have identified that person.”

we must guard our moral compasses. And some day, I think, future generations will look back at our mistreatment of livestock and poultry with pain and bafflement. They will wonder how we in the early 21st century could have been so oblivious to the cruelties that delivered $4.99 chickens to a Costco rotisserie.

Torture a single chicken in your backyard, and you risk arrest. Abuse tens of millions of them? Why, that’s agribusiness.

Those commendable savings have been achieved in part by developing chickens that effectively are bred to suffer. Scientists have created what are sometimes called “exploding chickens” that put on weight at a monstrous clip, about six times as fast as chickens in 1925. The journal Poultry Science once calculated that if humans grew at the same rate as these chickens, a 2-month-old baby would weigh 660 pounds.

The philosopher Ronald Dworkin considered this type of parental conundrum in an essay called “What Is Equality?,” from 1981. The parents in such a family, he wrote, confront a trade-off between two worthy egalitarian goals. One goal, “equality of resources,” might be achieved by dividing the inheritance evenly, but it has the downside of failing to recognize important differences among the parties involved.

Another goal, “equality of welfare,” tries to take account of those differences by means of twisty calculations.

Take the first path, and you willfully ignore meaningful facts about your children. Take the second, and you risk dividing the inheritance both unevenly and incorrectly.

A team of scientists hunting dark matter has recorded suspicious pings coming from a vat of liquid xenon underneath a mountain in Italy

If the signal is real and persists, the scientists say, it may be evidence of a species of subatomic particles called axions — long theorized to play a crucial role in keeping nature symmetrical but never seen — streaming from the sun.

Instead of axions, the scientists may have detected a new, unexpected property of the slippery ghostly particles called neutrinos. Yet another equally likely explanation is that their detector has been contaminated by vanishingly tiny amounts of tritium, a rare radioactive form of hydrogen.

For decades, scientists working to predict changes in the climate relied mostly on calculations involving simple laws of physics and chemistry but little data from the real world. But with temperatures world-wide continuing to rise—and with data-collection techniques and technologies continuing to advance—scientists now rely on meticulous measurements of temperatures, ocean currents, soil moisture, air quality, cloud cover and hundreds of other phenomena on Earth and in its atmosphere.

“Now we can truly do climate studies because now we have observations to precisely say how weather trends have changed and are changing,

“When you are trying to develop long-term environmental records, including climate records, consistent measurement is incredibly valuable,” says Kevin Murphy, who as NASA’s chief science data officer oversees an archive of Earth observation data used by 3.9 million people last year. “It’s irreplaceable data.”

To attract workers in today's tight labor market, companies are touting better workplace amenities. Amazon is running ads about the company's pay and benefits. Levi Strauss is offering to cover travel costs for workers seeking abortions. Airbnb is allowing its employees to permanently work remotely. This is a workers' paradise in the making.

But they also made clear that willingness to stay with the current employer is also a matter of whether their direct managers can deliver on five other factors beyond the paycheck that keep people happy, productive and on the team.

Now, increasing numbers of people demand the ability to choose when, where and how to work.