Researchers at MIT have developed a new method for “training home robots in simulation,” reports Brain Heater for TechCrunch. “Simulation has become a bedrock element of robot training in recent decades,” explains Heater. “It allows robots to try and fail at tasks thousands — or even millions — of times in the same amount of time it would take to do it once in the real world.”
Research affiliate Thomas Neff, a physicist known for his proposal aimed at “reducing the global stockpile of nuclear weapons and helping stabilize the former Soviet Union,” has died at age 80, reports Harrison Smith for the Washington Post. Credited with the “Megatons to Megawatts” agreement, “Dr. Neff spent years working in arms control, nuclear weapons proliferation and uranium markets, bridging the divide between experts who specialized in the kind of highly enriched uranium used for warheads and the far less enriched version used for electricity generation,” Smith writes.
Forbes reporter Rodger Dean Duncan spotlights “The Skill Code: How to Save Human Ability in an Age of Intelligent Machines,” a new book by Research Affiliate Matt Bean SM '14, PhD '17. Duncan “explains Beane’s take on AI tools, collaboration and remote work, who suggests traditional mentoring is at risk in the workplace. Beane says today’s successful people have ‘discovered new tactics that others can use to get skills without throwing out the benefits of hybrid working arrangements.’”
Research affiliate Thomas Neff, a physicist whose work with nuclear weapon conversion led to an agreement “that reduced nuclear threats and produced one of the greatest peace dividends of all time,” has died at the age of 80, reports William J. Broad for The New York Times. Neff’s idea of converting Soviet nuclear weapons into electricity used to power American cities “turned some 20,000 Russian nuclear arms into electricity, lighting billions of American lightbulbs.”
Prof. R. Scott Kemp and Principal Research Scientist Charles Forsberg speak with Verge reporter Justine Calma about the nuclear proliferation concerns raised by the higher concentrations of uranium used in next-generation nuclear reactors. “We need to make sure that we don’t get in front of ourselves here and make sure that all the security and safety provisions are in place first before we go off and start sending [high-assay low-enriched uranium] all around the country,” says Kemp.
Writing for The New York Times, Prof. Daron Acemoglu and University of Chicago Prof. James A. Robinson propose solutions to address growing distrust in democracy. “We need a new democratic social contract that people can believe in,” they write. “Democracy does not need to follow a majoritarian opinion on every topic, but it cannot sideline the views of the majority of the population, even on divisive subjects such as immigration.”
Researchers from the Data Provenance Initiative, a research group led by MIT engineers, have found that “important web sources used for training AI models have restricted the use of their data,” reports Kevin Roose for The New York Times. “We’re seeing a rapid decline in consent to use data across the web that will have ramifications not just for A.I. companies, but for researchers, academics and noncommercial entities,” explains graduate student Shayne Longpre.
A new working paper by Prof. Anna Stansbury and Research Associate Kyra Rodriguez looks at the “class gap” among US Ph.D.-holders in science, social science, engineering and health, reports Soumaya Keynes for the Financial Times. The paper found “those whose parents did not have a college degree are 13 per cent less likely to end up with tenure at a top university than those with more educated parents. They also tend to end up at lower-ranked institutions,” Keynes explains.
CNN’s Ashley Strickland reports on the discovery of an exoplanet on the path to becoming a “hot Jupiter,” providing clues about the evolution of these massive Jupiter-like planets closely orbiting their host stars. As Prof. Sarah Millholland explains: “This system highlights how incredibly diverse exoplanets can be. They are mysterious other worlds that can have wild orbits that tell a story of how they got that way and where they’re going.”
Prof. Richard Binzel talks with Meghan Bartels of Scientific American about the importance of studying Asteroid Apophis – a sizeable space rock that will near Earth within “one tenth of the Earth-moon distance” in 2029. “It’s an incredibly rare event that an asteroid like Apophis would hit the Earth, but it’s better to be knowledgeable than to [be] caught unaware,” says Binzel, a planetary scientist Bartels notes has “spent years raising awareness about the scientific opportunities of the 2029 flyby.”
Prof. Larry Guth and University of Oxford Prof. James Maynard have discovered a new proof for the Riemann hypothesis, which “automatically leads to better approximations of how many primes exist in short intervals on the number line, and stands to offer many other insights into how primes behave,” reports Jordana Cepelewicz for Quanta Magazine. “It’s a sensational result,” notes Rutgers University Prof. Henryk Iwaniec. “It’s very, very, very hard. But it’s a gem.”
Prof. Richard Binzel organized a centennial celebration for the Johnstown meteorite, which was seen crashing into Earth on July 6, 1924 in Weld County, Colorado, and later “became a link to understanding a whole class of meteorites,” reports Elizabeth Gamillo for Astronomy. “Binzel describes the Johnstown rock not as the meteorite that launched a thousand ships, but one that instead launched one major mission to the asteroid belt,” writes Gamillo.
MIT researchers have discovered how propofol, a commonly used anesthetic, works on the brain, reports Francesca Benson for IFL Science. The research studied “the differences between an awake brain and one under anesthesia by looking at the stability of the brain’s activity,” writes Bensen.
MIT scientists have discovered how propofol, a commonly used anesthetic, induces unconsciousness, reports Adam Kovac for Gizmodo. “The new research indicates that [propofol] works by interfering with a brain’s ‘dynamic stability’ – a state where neurons can respond to input, but the brain is able to keep them from getting too excited,” explains Kovac.
A research group led by postdoctoral associate Minde An analyzed China’s greenhouse gas emissions over the past decade, finding a substantial increase thought to be primarily driven by aluminum production, reports Ellen McNally for The Guardian. The researchers, writes McNally, say these levels could be reduced “with technological innovation and incorporation of the aluminum industry into the carbon market, or a national carbon trading scheme allowing emitters to buy or sell emission credits.”