China successfully sent on Tuesday a new-generation X-ray observatory satellite, the Einstein Probe (EP), into orbit to monitor flashes in the night sky and observe mysterious transient phenomena in the universe. The satellite will help reveal more about this violent and little-known side of the cosmos and help advance people’s understanding of tumultuous cosmic events.
The satellite lifted off atop a Long March-2C rocket from Xichang Satellite Launch Centre in Southwest China’s Sichuan Province at 3:03 pm, China’s National Space Science Center (NSSC) of Chinese Academy of Science announced on its website.
According to the NSSC, the EP is a scientific satellite among the Strategic Priority Program on Space Science (II), a series scientific satellites program implemented by China since 2011 following the successful launches of scientific satellites such as Wukong and Mozi satellites.
The Einstein Probe Space Science Satellite serves as a cosmic explosion catcher, capable of precisely capturing more distant and fainter transient sources and eruptive celestial bodies. It explores X-ray signals from sources of gravitational waves and holds important scientific significance in studying the formation, evolution and mergers of dense celestial objects such as stars, black holes and neutron stars.
The EP satellite employs the time-domain astronomy in the soft X-ray band to conduct high-sensitivity real-time dynamic sky surveys, in a bid to systematically discover high-energy transient and variable celestial objects, monitor the activity of already known celestial bodies and explore their natural and physical processes.
With the new X-ray detection technology inspired by the functioning of a lobster eye, the EP weighs1.45 tons and it’s as large as a full-size SUV. It is shaped like a lotus in full bloom and features 12 petals and two stamens. The “petals” are actually 12 modules consisting of wide-field X-ray telescopes, while the two “stamens” consist of two modules of follow-up X-ray telescopes.
With these instruments, the EP can conduct wild-field surveys while accurately capturing distant and faint high-energy transient sources in the universe, as well as capturing transient unknown phenomena. It issues alerts to guide ground-based and other astronomical facilities for subsequent observations.
Veteran Shanghai soccer coach Xu Genbao on Monday has called for his former students with club Shanghai Port, which was crowned as the Chinese Super League (CSL) champions a day earlier, to focus on propelling Chinese soccer onto the global stage. The veteran sextet also paid tribute to the legendary coach.
Led by forward Wu Lei, the famed "East Asia Six Tigers" - Wu, Yan Junling, Zhang Linpeng, Wang Shenchao, Cai Huikang, and Lü Wenjun - made a special visit to pay their respects to coach Xu, the man who played a significant role in their careers while they attended his academy on Chongming Island as part of Shanghai East Asia FC.
"The dream we cherished as teenagers, we did it together! It feels good to have everyone together," Wu wrote on social media on Monday, celebrating the league win with his fellow Shanghai East Asia teammates and coach Xu.
Xu, a legendary figure in Chinese soccer, founded the soccer training base at the beginning of the 2000s. This Chongming Island school has been instrumental in nurturing and developing a generation of talented players who are now leading the way for Chinese soccer on both the domestic and international stage.
"From today on, the happiness after winning the league championship is over. True happiness is helping Chinese soccer excel in Asia and propelling the team onto the global stage," Xu told his former students, who are now in their 30s.
The players, who were the key players in Shanghai Port's previous league triumph in 2018, except for Zhang who was with Guangzhou FC, are all past their prime now. Zhang, Wang, Lü, and Cai are now 34 years old, while Wu and Yan are two years younger.
Zhang's departure to Guangzhou was mainly because the club was facing financial issues and selling promising players remains a practical way to generate revenue in club operations. But now the sextet has regrouped all together at Port, though their careers are declining due to age.
The players are expected to represent China at the upcoming FIFA World Cup Asian qualifiers in November, when they will visit Thailand on November 16 before hosting South Korea on November 21.
"As the players approach the twilight of their careers, adding another CSL title to their list of accomplishments not only further enriches their soccer stories, but also reinforces the idea that long-term youth development pays off," Mao Jiale, a Chengdu-based sports commentator, told the Global Times.
"Their triumphant journey is a testament to Xu's legacy, who spent two decades dedicated to youth development on Chongming Island."
After spending three seasons overseas, Wu has topped the domestic scoring list by 16 goals.
"You should have a bigger goal [rather than winning domestic championship]," Xu told Wu.
During their meeting, Xu, who is now 80 years old and still actively coaches the local Shanghai youth team, also asked if his former students would consider following in his footsteps by becoming coaches.
"I can't find someone to take over. Maybe you guys can take into consideration this role," Xu said. "I hope you will come back. I hope I can have a successor."
Xu's achievement is rare in the populous country as the "East Asia Six Tigers" are not only key players for the local Port team, but also once played a pivotal role in the Chinese national soccer team.
Song Kai, the new president of the Chinese Football Association (CFA), recently stated that youth development should be a top priority in developing Chinese soccer.
The island, located at the mouth of the Yangtze River, has become the cradle of Chinese soccer talent. The academy was founded on the principle that nurturing young talents from an early age was the key to China's soccer future.
"Xu had instilled in his players the importance of hard work, dedication, and a never-give-up spirit. His legacy is a shining example of what can be achieved through long-term commitment and investment in young talent," Mao noted.
"The hope is that more coaches and institutions will follow in the footsteps of Xu Genbao and his soccer training school, paving the way for a brighter future for Chinese soccer.
In spite of international outrage, Japan on Thursday began releasing a second round of nuclear-contaminated wastewater from Fukushima. Chinese experts warned that this latest irresponsible move will not only further damage Japan’s international reputation, but also continue to eat away at Japan’s exports to China and discourage travel to Japan.
Plant operator Tokyo Electric Power Company Holdings (TEPCO) said it finished inspections following the initial release, which concluded on September 11, and found no reason to alter procedures. During the first round, the company said a total of 7,788 tons of treated water, stored in 10 tanks within the plant's premises, were released, according to the Japan Times.
In the second round, roughly the same amount of water is set to be released over 17 days, the utility operator confirmed. TEPCO added that the treated water is stored in over 1,000 tanks.
Overall, the dumping of the water into the Pacific Ocean is expected to take three decades to complete.
After Japan's move, a spokesperson from the Chinese Ministry of Foreign Affairs stated on Thursday that China's stance on Japan's dumping of nuclear-contaminated wastewater from Fukushima has always been consistent and clear. The spokesperson emphasized, "We firmly oppose Japan's unilateral action of discharging the water into the sea."
The spokesperson also urged the Japanese government to comprehensively respond to the concerns of the international community and engage in full consultations with neighboring countries in a sincere manner, and responsibly handle the disposal of nuclear-contaminated water. The international community should promote the establishment of a long-term and effective international monitoring arrangement and ensure the active participation of relevant parties, including neighboring countries of Japan, said the spokesperson.
Hong Kong’s Secretary for Environment and Ecology Tse Chin-wan said on Wednesday that Hong Kong has no plans to ease restrictions on Japanese seafood imports, reiterating the government’s opposition to Japan’s “unilateral” decision to dump wastewater from the crippled nuclear plant.
“The ball is in Japan’s court. If Japan does not change its ways, I don’t see that we are under any condition to [relax the bans],” Tse said.
China’s customs authority banned imports of all seafood from Japan starting from August 24, in response to Japan’s dumping nuclear-contaminated wastewater from the plant.
China's seafood imports from Japan in August dived 67.6 percent from a year earlier to 149.02 million yuan ($20.44 million), after a fall of 28.5 percent in July, Kyodo News reported, citing data from Chinese customs released last month.
Japan’s seafood exports to South Korea also plunged in August, according to reports.
Japan's nuclear-contaminated wastewater dumping opened a Pandora's Box and the damage to Japan's fishery industry will worsen, Lü Xiang, a research fellow at the Chinese Academy of Social Sciences, told the Global Times. The expert also said that if Japan continues to dump nuclear-contaminated wastewater, it will face more international condemnation potentially devastating Japan's seafood export market.
During China’s eight-day Mid-Autumn Festival and National Day holidays, which last from September 29 to October 6, long lines can be seen at most restaurants in the Chinese capital of Beijing, however, some Japanese restaurants remained empty. When a Global Times reporter visited the popular Solana shopping mall in Beijing on Wednesday, no one was dining at the two Japanese restaurants in the complex.
A waitress from one of the Japanese restaurants told the Global Times that she only received a few customers during the holidays, because “people are concerned about the nuclear-contaminated wastewater [from Japan].”
The wastewater issue is not only hitting seafood exports, Chinese tourists’ enthusiasm for traveling to the country has also taken a hit following Tokyo’s irresponsible move. Ahead of the holidays, cancellations of Chinese tours to the country had already begun, media reported last month, ahead of the holidays.
However, many Japanese media outlets began to claim that despite concerns about the dumping of nuclear-contaminated wastewater, Japan remained a hotspot for Chinese tourists during the holidays.
The Japan Times reported on September 29 that “Japanese airlines' flights from China to Japan are almost fully booked during an eight-day holiday that began Friday, the airlines said, despite Chinese media reports last month that Japan-bound trips had been canceled following the release of treated radioactive water from the crippled Fukushima nuclear power plant into the sea.”
Da Zhigang, director of the Institute of Northeast Asian Studies at the Heilongjiang Provincial Academy of Social Sciences refuted the report.
He said that the Japanese media linked various reasons behind the surge of Chinese visitors in Japan, including the fact that China resumed Japan-bound group tours, the demands for business trips and visiting family members are growing, adding that October is also when foreign students enroll in Japanese colleges.
They generalized "Chinese people traveling to Japan" as "Chinese tourists," ignoring the fact that the passengers include a large number of business people and students, and even some Japanese citizens are on these so-called "packed" flights to Japan.
Da also said these Japanese media outlets are using "tourism public opinion warfare" to muddle through and downplay their country's responsibility in wastewater dumping, as they link the "Chinese visitors to Japan" with the issue of Japan's dumping of nuclear-contaminated wastewater into the sea.
The "Out of Africa - Celebrating the Beijing Swifts" seminar was successfully held on Monday evening in the Belgian Residence in Beijing, coinciding with the World Migratory Bird Day to promote the conservation of migratory birds such as the Beijing Swifts and their habitats.
Ambassador of Belgium to China H.E. Bruno Angelet, deputy director-general of the Beijing Municipal Forestry and Parks Bureau Wang Xiaoping, deputy director of the Wildlife and Wetland Protection Division Ji Jianwei, Beijing Normal University professor Zhao Xinru, professor of Ornithology at the Sun Yat-sen University, Liu Yang and Beijing-based wildlife conservationist Terry Townshend, and several ambassadors attended the event.
Ambassador Angelet, the host of the event delivered a speech. He declared a love for birds, especially the Swifts as they are intelligent, social, gentle and free, adding that he was also a birdwatcher in Belgium and after arriving in Beijing in August, he was pleasantly surprised at the great variety of birds in the city, including sparrows, which have almost disappeared in Belgium, but can be found everywhere in Beijing.
"I was so excited to discover that European and Chinese scientists have studied specific aspects of their journey. Through this study, we have discovered that the Swifts which nest in Beijing also come every spring from Africa, mostly from Namibia, Botswana, and South Africa," he told the Global Times.
Ambassador Angelet also expressed his hope that embassies and their Chinese counterparts will join forces to improve bilateral international scientific cooperation.
Professor Zhao and Professor Liu, two of the best-known Chinese scientists who have been studying the bird species shared the results of the citizen science surveys to count the Swifts in Beijing to help understand the bird's population trends.
The Beijing Swift, as a migratory bird named after "Beijing," is a landmark species and one of the ecological symbols of Beijing. It spends three months a year in Beijing to breed before undertaking an incredible migration to southern Africa in mid-July for the northern hemisphere winter, professor Zhao said at the event.
The three taikonauts from China's Shenzhou-15 crewed mission, known as the "dream crew," on Monday made their first appearance in public 57 days later after returning to Earth in June. The crem members shared their experience and feeling in the space and deeply felt the wonder of nature, the vastness of the universe.
China launched the manned spaceship Shenzhou-15 on November 29, 2022, sending Fei Junlong, Deng Qingming and Zhang Lu to China's space station core module Tianhe.
Having spent six months living and working in the China Space Station, the three Shenzhou-15 taikonauts safely returned to the Dongfeng landing site in the Gobi Desert, North China's Inner Mongolia Autonomous Region in June.
China Astronaut Research and Training Center has scientifically formulated a recovery plan. The recovery period is mainly divided into three stages - quarantine, recuperation and observation. So far, the crew has completed the first two stages, and they are in good physical and mental condition, and have been fully in the observation stage. They will resume regular training after completing all health and wellbeing assessments.
The four extravehicular activities (EVAs) are the highlight of our crew and the highlight of China's manned spaceship development. We believe that the following crew members will create more records, Fei said at Monday's press meeting.
"To realize a dream is not the end of the efforts, but a new starting point," Deng said. Deng has been made efforts for 25 years and finally fulfilled dream of missions in space.
Zhang who took the mission in the space for the first time took a lot of beautiful photos in space, many of them are about the motherland and hometown. Zhang again and again in the window looked at the motherland, and Zhang said that what impressed him most was extravehicular activities.
"Before my first extravehicular activities, I had been looking out of the porthole, which was so small that I couldn't get a full view." When I was faced with the boundless space for the first time, "I had a deep understanding of the wonders of nature and the vastness of the universe," Zhang said.
China has unveiled its preliminary plan on manned lunar landing. China planned to land its taikonauts on the moon before 2030 to carry out scientific exploration, according to a preliminary plan released by the China Manned Space Agency in July.
"We are fully aware of the mission and responsibility on our shoulders. We firmly believe that with scientific and systematic training, the full support of space science and technology staff, the unity of our crew, we can overcome any difficulty," Fei noted.
Some people can evade diseases even though they carry genetic mutations that cause serious problems for others.
Researchers found 13 of these genetic escape artists after examining DNA from nearly 600,000 people, the scientists report online April 11 in Nature Biotechnology. Learning how such people dodge genetic bullets may help move inherited-disease research from diagnosis to prevention.
Hundreds of mutations that lead to genetic diseases have been uncovered since the discovery of a disease-causing flaw in the “cystic fibrosis gene” in 1989. But, says study coauthor Stephen Friend, “finding the gene that causes the disease is not the same as finding a way to prevent the symptoms or manifestations of that disease.” Clues to preventing genetic diseases could come from studying people who should have gotten sick but didn’t, suggest Friend, of the Icahn School of Medicine at Mount Sinai in New York City, and colleagues. Finding people like that is a challenge, though, because they don’t have symptoms.
To find such people, the team assembled existing genetic data from 589,306 adults who had their DNA tested as part of 12 ongoing or past studies. The researchers then searched for mutations known to cause genetic diseases in childhood. Since study participants were adults, they should already have developed symptoms.
Initially, the researchers found more than 15,000 potential escape artists. Further analysis whittled the field to 42. Of those, medical records indicated that 14 had symptoms of their genetic disease after all. Another 15 were ruled out because a closer examination found that each person had only one copy of a mutated gene. The other copy was normal, so could compensate for the debilitated copy.
The remaining 13 people carried mutations associated with one of eight different diseases, but somehow had not developed symptoms. The study suggests that it is possible to find people who are resistant to getting genetic diseases.
But some resilient people may have been missed because the study included only a fraction of known disease-causing mutations, says Daniel MacArthur, a geneticist at Massachusetts General Hospital in Boston. More troubling is that the researchers could not confirm that resistant people were disease-free or verify that they really have mutations. That’s because consent forms signed when participants agreed to share their genetic information did not contain provisions for researchers to contact volunteers later for retesting. “Some of their resilient cases may be mirages,” MacArthur wrote in a commentary, also in Nature Biotechnology. Garry Cutting, a medical geneticist at Johns Hopkins School of Medicine, is also concerned that some of the lucky 13 may not be true escape artists. Cutting studies genes and environmental factors that determine the severity of cystic fibrosis, a disease in which thick mucus builds up in the lungs, pancreas and other organs. People develop the disease when they inherit two defective copies of the CFTR gene. More than 1,800 mutations in that gene can cause the disease if inherited in double copies or in combinations of mutations.
Of the 13 resilient people in the study, three carry dual copies of a very rare mutation in the CFTR gene, but don’t have cystic fibrosis.
Only one person in a database of 88,000 cystic fibrosis patients carries two copies of the rare mutation. So finding three people with double copies of the mutation is extraordinary, Cutting says. “It’s so exceptional that I believe it requires more extensive verification.”
He says he would be “delighted” if the people really turn out to be resistant to getting cystic fibrosis, but he’s puzzled why that mutation alone allows escape. It could be that a variant in another gene counteracts that specific mutation in the CFTR gene. Or a second mutation in the mutant CFTR gene may reverse the effect of the disease-causing one. However, it is possible that the three people avoided cystic fibrosis because they have only one copy of the mutated gene and one healthy copy that the researchers missed with the methods they used, Cutting says.
MacArthur points out another potential drawback to the study: Even if the researchers expand the study to 1 million or more people, they may not discover enough “genetic superheroes” to create a sample size large enough to detect protective genes. Such an effort may require participation from hundreds of millions of people and researchers willing to share data on a global scale.
A fossil dinosaur embryo known as “Baby Louie” has a new name. It belongs to a newly identified species of dinosaur called Beibeilong sinensis, researchers report May 9 in Nature Communications.
In the 1980s and 1990s, farmers found thousands of fossilized dinosaur eggs in the rocks of Henan Province in China and sold them overseas. It turned out that one chunk of rock, purchased by a company that sells museum-quality fossils and rock specimens, held not only eggs but also an embryonic dinosaur skeleton. It was dubbed “Baby Louie,” after a National Geographic photographer whose images of it appeared in a cover story for the magazine. Paleontologists knew Baby Louie was some kind of oviraptorosaur, a two-legged, birdlike dinosaur. But its species was a mystery. So in 2015, Junchang Lü of the Chinese Academy of Geological Sciences in Beijing and colleagues returned to the site in China where the eggs were excavated. They analyzed fossils there and examined Baby Louie’s remains, now housed in the Henan Geological Museum. The embryo measures 38 centimeters from its snout to the start of its tail and dates to about 90 million years ago.
Based on the structure of Baby Louie’s facial bones and other anatomical features, the team declared the dinosaur a new species. In Chinese, Beibei means “baby” and long means “dragon.”
Baby Louie’s skeleton was found with six to eight similar-looking dinosaur eggs. This type of dino egg is the largest identified to date and appears to have been abundant, leading paleontologists to think that birdlike dinosaurs like Baby Louie were common in the Late Cretaceous.
People in the United States who wear contact lenses share an eye-opening characteristic. Roughly 85 percent report regularly taking at least one risk when wearing or cleaning their lenses. In the Aug. 18 Morbidity and Mortality Weekly Report, researchers at the U.S. Centers for Disease Control and Prevention describe results from a 2016 national survey of more than 6,000 people.
Contrary to previous studies, teens did better in some categories than adults. The no-no’s below can lead to serious eye infections, mainly by introducing microorganisms into the eye. Even water that’s safe to drink or swim in can bug up lenses.
When some bacteria manage to escape being killed by a virus, the microbes end up hamstringing themselves. And that could be useful in the fight to treat infections.
The bacterium Shigella flexneri — one cause of the infectious disease shigellosis — can spread within cells that line the gut by propelling itself through the cells’ barriers. That causes tissue damage that can lead to symptoms like bloody diarrhea. But when S. flexneri in lab dishes evolved to elude a type of bacteria-killing virus, the bacteria couldn’t spread cell to cell anymore, making it less virulent, researchers report November 17 in Applied and Environmental Microbiology.
The research is a hopeful sign for what’s known as phage therapy (SN: 11/20/02). With antibiotic-resistant microbes on the rise, some researchers see viruses that infect and kill only bacteria, known as bacteriophages or just phages, as a potential option to treat antibiotic-resistant infections (SN: 11/13/19). With phage therapy, infected people are given doses of a particular phage, which kill off the problematic bacteria. The problem, though, is that over time those bacteria can evolve to be resistant against the phage, too.
“We’re kind of expecting phage therapy to fail, in a sense,” says Paul Turner, an evolutionary biologist and virologist at Yale University. “Bacteria are very good at evolving resistance to phages.” But that doesn’t mean the bacteria emerge unscathed. Some phages attack and enter bacteria by latching onto bacterial proteins crucial for a microbe’s function. If phage therapy treatments relied on such a virus, that could push the bacteria to evolve in such a way that not only helps them escape the virus but also impairs their abilities and makes them less deadly. People infected with these altered bacteria might have less severe symptoms or may not show symptoms at all.
Previous studies with the bacteria Pseudomonas aeruginosa, for instance, have found that phage and bacteria can engage in evolutionary battles that drive the bacteria to be more sensitive to antibiotics. The new study hints that researchers could leverage the arms race between S. flexneri and the newly identified phage, which was dubbed A1-1 after being found in Mexican wastewater, to treat shigellosis.
S. flexneri in contaminated water is a huge problem in parts of the world where clean water isn’t always available, such as sub-Saharan Africa and southern Asia, says Kaitlyn Kortright, a microbiologist also at Yale University. Every year, approximately 1.3 million people die from shigellosis, which is caused by four Shigella species. More than half of those deaths are in children younger than 5 years old. What’s more, antibiotics to treat shigellosis can be expensive and hard to access in those places. And S. flexneri is becoming resistant to many antibiotics. Phage therapy could be a cheaper, more accessible option to treat the infection.
The blow to S. flexneri’s cellular spread comes because to enter cells, A1-1 targets a protein called OmpA, which is crucial for the bacteria to rupture host cell membranes. The researchers found two types of mutations that made S. flexneri resistant to A1-1. Some bacteria had mutations in the gene that produces OmpA, damaging the protein’s ability to help the microbes spread from cell to cell. Others had changes to a structural component of bacterial cells called lipopolysaccharide.
The mutations in lipopolysaccharide were surprising, Kortright says, because the relationship between that structural component and OmpA isn’t fully worked out. One possibility is that those mutations distort OmpA’s structure in a way that the phage no longer recognizes it and can’t enter bacterial cells.
One lingering question is whether S. flexneri evolves in the same way outside a lab dish, says Saima Aslam, an infectious diseases physician at the University of California, San Diego who was not involved in the work. Still, the findings show that it’s “not always a bad thing” when bacteria become phage-resistant, she says.
The twilight time between fully awake and sound asleep may be packed with creative potential.
People who recently drifted off into a light sleep later had problem-solving power, scientists report December 8 in Science Advances. The results help demystify the fleeting early moments of sleep and may even point out ways to boost creativity.
Prolific inventor and catnapper Thomas Edison was rumored to chase those twilight moments. He was said to fall asleep in a chair holding two steel ball bearings over metal pans. As he drifted off, the balls would fall. The ensuing clatter would wake him, and he could rescue his inventive ideas before they were lost to the depths of sleep.
Delphine Oudiette, a cognitive neuroscientist at the Paris Brain Institute, and colleagues took inspiration from Edison’s method of cultivating creativity. She and her colleagues brought 103 healthy people to their lab to solve a tricky number problem. The volunteers were asked to convert a string of numbers into a shorter sequence, following two simple rules. What the volunteers weren’t told was that there was an easy trick: The second number in the sequence would always be the correct final number, too. Once discovered, this cheat code dramatically cut the solving time. After doing 60 of these trials on a computer, the volunteers earned a 20-minute break in a quiet, dark room. Reclined and holding an equivalent of Edison’s “alarm clock” (a light drinking bottle in one dangling hand), participants were asked to close their eyes and rest or sleep if they desired. All the while, electrodes monitored their brain waves.
About half of the participants stayed awake. Twenty-four fell asleep and stayed in the shallow, fleeting stage of sleep called N1. Fourteen people progressed to a deeper stage of sleep called N2.
After their rest, participants returned to their number problem. The researchers saw a stark difference between the groups: People who had fallen into a shallow, early sleep were 2.7 times as likely to spot the hidden trick as people who didn’t fall asleep, and 5.8 times as likely to spot it as people who had reached the deeper N2 stage.
Such drastic differences in these types of experiments are rare, Oudiette says. “We were quite astonished by the extent of the results.” The researchers also identified a “creative cocktail of brain waves,” as Oudiette puts it, that seemed to accompany this twilight stage — a mixture of alpha brain waves that usually mark relaxation mingled with the delta waves of deeper sleep.
The study doesn’t show that the time spent in N1 actually triggered the later realization, cautions John Kounios, a cognitive neuroscientist at Drexel University in Philadelphia who cowrote the 2015 book The Eureka Factor: Aha Moments, Creative Insight, and the Brain. “It could have been possible that grappling with the problem and initiating an incubation process caused both N1 and the subsequent insight,” he says, making N1 a “by-product of the processes that caused insight rather than the cause.”
More work is needed to untangle the connection between N1 and creativity, Oudiette says. But the results raise a tantalizing possibility, one that harkens to Edison’s self-optimizations: People might be able to learn to reach that twilight stage of sleep, or to produce the cocktail of brain waves associated with creativity on demand.
It seems Edison was onto something about the creative powers of nodding off. But don’t put too much stock in his habits. He is also said to have considered sleep “a criminal waste of time.”
