schwit1 shares a report from Phys.Org: A new study led by scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science demonstrates that under realistic environmental conditions oil drifting in the ocean after the DWH oil spill photooxidized into persistent compounds within hours to days, instead over long periods of time as was thought during the 2010 Deepwater Horizon oil spill. This is the first model results to support the new paradigm of photooxidation that emerged from laboratory research.

After an oil spill, oil droplets on the ocean surface can be transformed by a weathering process known as photooxidation, which results in the degradation of crude oil from exposure to light and oxygen into new by-products over time. Tar, a by-product of this weathering process, can remain in coastal areas for decades after a spill. Despite the significant consequences of this weathering pathway, photooxidation was not taken into account in oil spill models or the oil budget calculations during the Deepwater Horizon spill. The UM Rosenstiel School research team developed the first oil-spill model algorithm that tracks the dose of solar radiation oil droplets receive as they rise from the deep sea and are transported at the ocean surface. The authors found that the weathering of oil droplets by solar light occurred within hours to days, and that roughly 75 percent of the photooxidation during the Deepwater Horizon oil spill occurred on the same areas where chemical dispersants were sprayed from aircraft. Photooxidized oil is known to reduce the effectiveness of aerial dispersants. The study has been published in the journal Frontiers in Marine Science.

Germany on Monday halted use of the AstraZeneca coronavirus vaccine, the Health Ministry announced in a statement, with Italy, France and Spain following suit later in the day. Several other EU countries have stopped use of the vaccine because of the possibility of blood clots. From a report: The Health Ministry announced that use of the vaccine was "suspended as a precaution" on the basis of advice from the national health regulator, the Paul Ehrlich Institute (PEI). According to the Health Ministry, the European Medicines Agency (EMA) will decide "whether and how the new information will affect the authorization of the vaccine" pending an investigation. "After new reports of thrombroses of the cerebral veins in connection with the vaccination in Germany and Europe, the PEI considers further investigations to be necessary," the Health Ministry announced. German Health Minister Jens Spahn said "the decision is a professional, not political one," following advice from the PEI. Spahn said the risk of blood clots from the AstraZeneca jab is low, but could not be ruled out. "The most important thing for confidence is transparency," Spahn said during a briefing.

The Washington Post reports: Facebook is conducting a vast behind-the-scenes study of doubts expressed by U.S. users about vaccines, a major project that attempts to probe and teach software to identify the medical attitudes of millions of Americans, according to documents obtained by The Washington Post. The research is a large-scale attempt to understand the spread of ideas that contribute to vaccine hesitancy, or the act of delaying or refusing a vaccination despite its availability, on social media — a primary source of health information for millions of people...

Its early findings suggest that a large amount of content that does not break the rules may be causing harm in certain communities, where it has an echo chamber effect... Just 10 out of the 638 population segments contained 50 percent of all vaccine hesitancy content on the platform. And in the population segment with the most vaccine hesitancy, just 111 users contributed half of all vaccine hesitant content... The research effort also discovered early evidence of significant overlap between communities that are skeptical of vaccines and those affiliated with QAnon, a sprawling set of baseless claims that has radicalized its followers and been associated with violent crimes, according to the documents...

Facebook, which owns WhatsApp messenger and Instagram, collects reams of data on its more than 3.3 billion users worldwide and has a broad reach onto those users' devices. Public health experts say that puts the company in a unique position to examine attitudes toward vaccines, testing and other behaviors and push information to people.

But the company has a steep hill to climb when it comes to proving that its research efforts serve the public because of its history of misusing people's data.
Facebook is removing content which violates its policies. Yet the documents obtained by the Post say "While research is very early, we're concerned that harm from non-violating content may be substantial."

CBS News reports: Scientists are pulling inspiration from Noah's Ark in a new lunar proposal that they call a "global insurance policy." They hope to send an ark to the moon, filled with 335 million sperm and egg samples, in case a catastrophe happens on Earth. Instead of two of every animal, the solar-powered moon ark would cryogenically store frozen seed, spore, sperm and egg samples from some 6.7 million Earth species. University of Arizona researcher Jekan Thanga and a group of his students proposed the concept in a paper presented during the IEEE Aerospace Conference this week...

Establishing the ark would involve sending the 6.7 million samples to the moon in multiple payloads, then storing them in a vault beneath the surface, where they would be safe. The idea is to store the ark within a network of lava tubes — about 200 of which were discovered beneath the moon's surface in 2013... These tubes have remained untouched for three to four billion years, and scientists suggest they could provide much-needed protection from solar radiation, meteors or temperature changes on the surface. While the moon is not hospitable to humans, its harsh features "make it a great place to store samples that need to stay very cold and undisturbed for hundreds of years at a time," they said.

Based on some "quick, back-of-the-envelope calculations," Thanga said that transporting about 50 samples from each of 6.7 million species — totaling 335 million samples — would take about 250 rocket launches. That's over six times more than it took to build the International Space Station, which required 40 rocket launches. "It's not crazy big," Thanga said. "We were a little bit surprised about that."

The team's proposal for the ark includes solar panels on the moon's surface for electricity, elevator shafts down into the facility and Petri dishes housed in cryogenic preservation modules.
"What amazes me about projects like this is that they make me feel like we are getting closer to becoming a space civilization," said the University of Arizona doctoral student leading the thermal analysis for the project, "and to a not-very-distant future where humankind will have bases on the moon and Mars."

The Verge reports: A SpaceX Falcon 9 rocket launched the latest batch of 60 Starlink satellites into orbit Sunday, and returned to Earth successfully, landing on its Of Course I Still Love You drone ship in the Atlantic Ocean, the company announced. Sunday's mission marked a record ninth flight and landing for this Falcon 9 booster, SpaceX said...

Sunday's launch from NASA's Kennedy Space Center was the second in the past few days for SpaceX, which sent another of its Falcon 9 rockets skyward from Cape Canaveral Space Force Station on Thursday. That launch also brought 60 satellites into orbit.
Sharing a video about the mission, CNET calls it "a new standard for rocket recycling." The first stage that boosted the satellites is a veteran of five previous Starlink missions, Crew Dragon's first demonstration flight, a SiriusXM satellite launch and a Canadian Space Agency satellite mission. The fairing, or nose cone, also previously flew on the Transporter-1 ride-share mission.

The CBC Radio show Quirks and Quarks shares an interesting theory: If you find yourself pondering the marvel of aerodynamics when you fly on a plane, or if you concentrate on the structure of music as it plays, rather than simply listening, you may score high on measures of "systemization," according to University of Cambridge neuroscientist Simon Baron-Cohen.

And if so this may reflect abilities that he thinks may have first evolved in humans between 70,000 and 100,000 years ago, when our human ancestors took a cognitive leap forward. This new capacity enabled them to analyze and understand patterns in the world that would, among other things, facilitate the invention of complex tools from bows to musical instruments. In Baron-Cohen's new book, he argues that humans became "the scientific and technological masters of our planet" because of our brain's "systemizing mechanism."

Also, some individuals — particularly those with Autism Spectrum Disorder, are the "hyper-systemizers" of our world. He suggests this should cause us to re-evaluate the capacities and strengths of people with autism... "[F]or the longest time, autism has been really just characterized as a disability, which it is, but with a focus on all the things that autistic people find difficult, what they struggle with. But we know that autism is more than just a disability, that autistic people think differently. Sometimes they have strengths...

"The fact that we can now see a link between those strengths in autism and human invention may change the way we look at autistic people. We might want to see them for who they are, people who think differently and have contributed to human progress."

Eli Lilly and Company's experimental intravenous drug donanemab "could slow the cognitive decline of patients with Alzheimer's disease," reports CNN, citing early clinical trial results, published today in The New England Journal of Medicine: The study included 257 patients with early symptomatic Alzheimer's disease; 131 received donanemab, while 126 received a placebo. The researchers found donanemab slowed the decline of cognition and daily function in Alzheimer's patients by 32% after 76 weeks, compared to those who received a placebo. Taken over 18 months, that 32% slowing of decline could be noticeably impactful for Alzheimer's patients, noted Maria Carrillo, chief science officer at the Alzheimer's Association, who was not involved in the study. "Out of 18 months, in comparison to the people that did not get the drug, these folks were declining six months slower," Carrillo said. "That's six more months of better cognition, better memories, better enjoyable times with your family...."

"This has a lot of potential," Carrillo added. "It could be a first step towards slowing more significantly, or stopping, cognitive decline in these earlier stages, which would really be transformational for our field..."

The researchers also looked at the drug's impact on the buildup of amyloid beta plaque and tau proteins, which are considered hallmarks of Alzheimer's disease. At 52 weeks, almost 60% of participants had reached amyloid-negative status, meaning their levels were at those of otherwise healthy people. At 76 weeks, amyloid plaque levels — measured in centiloids — decreased by 85 centiloids more than in those who received the placebo, the researchers reported...

"We are extremely pleased about these positive findings for donanemab as a potential therapy for people living with Alzheimer's disease, the only leading cause of death without a treatment that slows disease progression," Dr. Mark Mintun, Eli Lilly's vice president of pain and neurodegeneration, said in a January statement announcing the trial results...

Alzheimer's disease is the most common form of dementia, and currently affects 6.2 million Americans age 65 and older, according to the Alzheimer's Association.

"Two companies are selling diamonds made in a laboratory from CO2 that once circled the Earth," reports Scientific American: The sales pitch can be stunning. As Ryan Shearman, the founder and CEO of a New York-based company called Aether, recently explained to a reporter for Vogue magazine: Each carat of a diamond removes 20 tons of CO2. That, he said, is more invisible gas than the average person produces in a year.

With the purchase of a 2-carat diamond, Shearman pointed out, "you're essentially offsetting 2 and a half years of your life."

It can take Mother Nature as long as a billion years to make diamonds, which are formed in rocks. But as Shearman explained in an interview with E&E News, he has developed a patent-pending process that can make a batch of diamonds in a laboratory in four weeks. Unlike other laboratory-made diamonds, his process starts with CO2 removed from the air. The gas undergoes a chemical reaction where it is subjected to high pressure and extremely high temperatures. All of this is created using solar, wind or hydraulic power. Or, as Shearman sometimes puts it, "we're committed to the unprecedented modern alchemy of turning air pollution into precious stones." Aether has been selling its diamonds since the beginning of the year at prices ranging from $7,000 for a ring to around $40,000 for earrings with sparkling stone arrangements.

Aether has a competitor, a British company called Skydiamond...

"Tens of millions of doses of the coronavirus vaccine made by the British-Swedish company AstraZeneca are sitting idly in American manufacturing facilities," reports the New York Times, "awaiting results from its U.S. clinical trial while countries that have authorized its use beg for access."

schwit1 shares their report: The fate of those doses of AstraZeneca's vaccine is the subject of an intense debate among White House and federal health officials, with some arguing the administration should let them go abroad where they are desperately needed while others are not ready to relinquish them, according to senior administration officials...

About 30 million doses are currently bottled at AstraZeneca's facility in West Chester, Ohio, which handles "fill-finish," the final phase of the manufacturing process during which the vaccine is placed in vials, one official with knowledge of the stockpile said. Emergent BioSolutions, a company in Maryland that AstraZeneca has contracted to manufacture its vaccine in the United States, has also produced enough vaccine in Baltimore for tens of millions more doses once it is filled into vials and packaged, the official said. But although AstraZeneca's vaccine is already authorized in more than 70 countries, according to a company spokesman, its U.S. clinical trial has not yet reported results, and the company has not applied to the Food and Drug Administration for emergency use authorization.

AstraZeneca has asked the Biden administration to let it loan American doses to the European Union, where it has fallen short of its original supply commitments and where the vaccination campaign has stumbled badly. The administration, for now, has denied the request, one official said...

Johnson & Johnson, which has authorization for its vaccine in the United States but fell behind on its production targets in both the United States and Europe, recently asked the United States to loan 10 million doses to the European Union, but the Biden administration also denied that request, according to American and European officials... The administration has focused on Johnson & Johnson's one-shot vaccine, brokering a deal to have the pharmaceutical giant Merck manufacture and bottle the shot and announcing plans to secure 100 million additional doses... Privately, two senior administration officials said that by helping Johnson & Johnson scale up with the Merck deal, the White House is laying the groundwork for the company to eventually make its vaccine available overseas.

The Washington Post reports: Tesla's Bay Area production plant recorded hundreds of covid-19 cases following CEO Elon Musk's defiant reopening of the plant in May, according to county-level data obtained by a legal transparency website.

The document, obtained by the website PlainSite following a court ruling this year, showed Tesla received around 10 reports of covid-19 in May when the plant reopened, and saw a steady rise in cases all the way up to 125 in December, as the disease caused by the novel coronavirus peaked around the country. The revelation follows The Washington Post's reporting in June that there had been multiple covid-19 cases reported at Tesla's facilities in Fremont, Calif., after Musk decided to reopen despite a countywide stay-at-home order, daring officials to arrest him. The data, covering the months between May and December, showed there were around 450 total reported cases. Roughly 10,000 people work at the plant...

Despite around 10 cases in May, according to the data, the health department told The Post in early June that there were no known cases of workplace infections affecting county residents. Tesla and the Alameda County Public Health Department and representatives did not respond to a request for comment...

Tesla also came under fire for its treatment of workers. It had promised they could remain home if they felt uncomfortable returning to the line. The Post reported in late June and July that workers concerned about covid exposure received termination notices after they did not return to work. The data released by Alameda County shows there were 19 reported cases in June and 58 reported cases at the plant in July.

Adrian Cho writes via Science Magazine: From 1966 to 1974, France blew up 41 nuclear weapons in above-ground tests in French Polynesia, the collection of 118 islands and atolls that is part of France. The French government has long contended that the testing was done safely. But a new analysis of hundreds of documents declassified in 2013 suggests the tests exposed 90% of the 125,000 people living in French Polynesia to radioactive fallout -- roughly 10 times as many people as the French government has estimated.

The findings come from a 2-year collaboration, dubbed the Moruroa Files, between Disclose, a French nonprofit that supports investigative journalism; Interprt, a collective of researchers, architects, and spatial designers affiliated with the Norwegian University of Science and Technology who focus on environmental issues; and the Science & Global Security program at Princeton. The findings were presented on 9 March on the project's website, in a book, and in a technical paper posted to the arXiv preprint server. Most French Polynesians were exposed to a relatively small amount of radiation, and the central issue is who is eligible for compensation under French law.

Scientists have used 3D computer modeling to figure out how the world's oldest "computer" worked. BBC reports: The Antikythera Mechanism has baffled experts since it was found on a Roman-era shipwreck in Greece in 1901. The hand-powered Ancient Greek device is thought to have been used to predict eclipses and other astronomical events. But only a third of the device survived, leaving researchers pondering how it worked and what it looked like. Scientists from University College London (UCL) believe they have finally cracked the puzzle using 3D computer modeling. They have recreated the entire front panel, and now hope to build a full-scale replica of the Antikythera using modern materials.

On Friday, a paper published in Scientific Reports revealed a new display of the gearing system that showed its fine details and complex parts. The mechanism has been described as an astronomical calculator as well as the world's first analogue computer. It is made of bronze and includes dozens of gears. The back cover features a description of the cosmos display, which shows the motion of the five planets that were known at the time the device was built. But only 82 fragments -- amounting to around a third of the device -- survived, This meant scientists have had to piece together the full picture using X-Ray data and an Ancient Greek mathematical method.

Japan's Fugaku supercomputer, the world's fastest in terms of computing speed, went into full operation this week, earlier than initially scheduled, in the hope that it can be used for research related to the novel coronavirus. From a report: The supercomputer, named after an alternative word for Mount Fuji, became partially operational in April last year to visualize how droplets that could carry the virus spread from the mouth and to help explore possible treatments for COVID-19. "I hope Fugaku will be cherished by the people as it can do what its predecessor K couldn't, including artificial intelligence (applications) and big data analytics," said Hiroshi Matsumoto, president of the Riken research institute that developed the machine, in a ceremony held at the Riken Center for Computational Science in Kobe, where it is installed. Fugaku, which can perform over 442 quadrillion computations per second, was originally scheduled to start operating fully in the fiscal year from April. It will eventually be used in fields such as climate and artificial intelligence applications, and will be used in more than 100 projects, according to state-sponsored Riken.

sciencehabit writes: Just 5 years ago, physicists opened a new window on the universe when they first detected gravitational waves, ripples in space itself set off when massive black holes or neutron stars spiral together. Even as discoveries pour in, researchers are already planning bigger, more sensitive detectors. And a Ford versus Ferrari kind of rivalry has emerged, with scientists in the United States simply proposing detectors 10 times bigger than the ones they have now, and researchers in Europe pursuing a more radical design that would combine six detectors in a single underground observatory. Researchers say detectors 10 times more sensitive than the ones they have now could detect all black hole mergers within the observable universe and spot hundreds of mergers of neutron stars, laying bare the nature of the ultradense matter in neutron stars. But, it's early days for the U.S. project, which is called the Cosmic Explorer, and the European project, which is known as the Einstein Telescope.

YouTube has taken down more than 30,000 videos that made misleading or false claims about COVID-19 vaccines over the last six months. Axios reports: YouTube first started including vaccination misinformation in its COVID-19 medical misinformation policy in October 2020. Since February 2020, YouTube has taken down more than 800,000 videos containing coronavirus misinformation. The videos are first flagged by either the company's AI systems or human reviewers, then receive another level of review.

Videos that violate the vaccine policy, according to YouTube's rules, are those that contradict expert consensus on the vaccines from health authorities or the World Health Organization. Accounts that violate YouTube's rules are subject to a "strike" system, which can result in accounts being permanently banned. "Platforms are eager to share data about the volume of misinformation they catch, and that transparency is valuable," adds Axios. "But the most valuable data would tell us the extent of misinformation that isn't caught."

An anonymous reader quotes a report from Phys.Org: Wormholes play a key role in many science fiction films -- often as a shortcut between two distant points in space. In physics, however, these tunnels in spacetime have remained purely hypothetical. An international team led by Dr. Jose Luis Blazquez-Salcedo of the University of Oldenburg has now presented a new theoretical model in the science journal Physical Review Letters that makes microscopic wormholes seem less far-fetched than in previous theories. [...] The researchers chose a comparatively simple "semiclassical" approach. They combined elements of relativity theory with elements of quantum theory and classic electrodynamics theory. In their model they consider certain elementary particles such as electrons and their electric charge as the matter that is to pass through the wormhole. As a mathematical description, they chose the Dirac equation, a formula that describes the probability density function of a particle according to quantum theory and relativity as a so-called Dirac field.

As the physicists report in their study, it is the inclusion of the Dirac field into their model that permits the existence of a wormhole traversable by matter, provided that the ratio between the electric charge and the mass of the wormhole exceeds a certain limit. In addition to matter, signals -- for example electromagnetic waves -- could also traverse the tiny tunnels in spacetime. The microscopic wormholes postulated by the team would probably not be suitable for interstellar travel. Moreover, the model would have to be further refined to find out whether such unusual structures could actually exist. "We think that wormholes can also exist in a complete model," says Blazquez-Salcedo.

Russian intelligence agencies have mounted a campaign to undermine confidence in Pfizer's and other Western vaccines, using online publications that in recent months have questioned the vaccines' development and safety, U.S. officials said. From a report: An official with the State Department's Global Engagement Center, which monitors foreign disinformation efforts, identified four publications that he said have served as fronts for Russian intelligence. The websites played up the vaccines' risk of side effects, questioned their efficacy, and said the U.S. had rushed the Pfizer vaccine through the approval process, among other false or misleading claims. Though the outlets' readership is small, U.S. officials say they inject false narratives that can be amplified by other Russian and international media.

"We can say these outlets are directly linked to Russian intelligence services," the Global Engagement Center official said of the sites behind the disinformation campaign. "They're all foreign-owned, based outside of the United States. They vary a lot in their reach, their tone, their audience, but they're all part of the Russian propaganda and disinformation ecosystem." In addition, Russian state media and Russian government Twitter accounts have made overt efforts to raise concerns about the cost and safety of the Pfizer vaccine in what experts outside the U.S. government say is an effort to promote the sale of Russia's rival Sputnik V vaccine.

"The emphasis on denigrating Pfizer is likely due to its status as the first vaccine besides Sputnik V to see mass use, resulting in a greater potential threat to Sputnik's market dominance," says a forthcoming report by the Alliance for Securing Democracy, a nongovernmental organization that focuses on the danger that authoritarian governments pose to democracies and that is part of the German Marshall Fund, a U.S. think tank. The foreign efforts to sow doubts about the vaccine exploit deep-seated anxieties about the efficacy and side effects of vaccines that were already prevalent in some communities in the U.S. and internationally. Concern about side effects is a major reason for vaccine hesitancy, according to U.S. Census Bureau data made public last month.

In late November, an urgent email popped up in the inbox of Hindustan Syringes & Medical Devices, one of the world's largest syringe makers. It was from UNICEF, the United Nations agency for children, and it was desperately seeking syringes. Not just any would do. These syringes must be smaller than usual. They had to break if used a second time, to prevent spreading disease through accidental recycling. Most important, UNICEF needed them in vast quantities. Now. From a report: "I thought, 'No issues,'" said Rajiv Nath, the company's managing director, who has sunk millions of dollars into preparing his syringe factories for the vaccination onslaught. "We could deliver it possibly faster than anybody else." As countries jostle to secure enough vaccine doses to put an end to the Covid-19 outbreak, a second scramble is unfolding for syringes. Vaccines aren't all that useful if health care professionals lack a way to inject them into people.

Officials in the United States and the European Union have said they don't have enough vaccine syringes. In January, Brazil restricted exports of syringes and needles when its vaccination effort fell short. Further complicating the rush, the syringes have to be the right type. Japan revealed last month that it might have to discard millions of doses of the Pfizer-BioNTech vaccine if it couldn't secure enough special syringes that could draw out a sixth dose from its vials. In January, the Food and Drug Administration advised health care providers in the United States that they could extract more doses from the Pfizer vials after hospitals there discovered that some contained enough for a sixth -- or even a seventh -- person. "A lot of countries were caught flat-footed," said Ingrid Katz, the associate director of the Harvard Global Health Institute. "It seems like a fundamental irony that countries around the world have not been fully prepared to get these types of syringes." The world needs between eight billion and 10 billion syringes for Covid-19 vaccinations alone, experts say. In previous years, only 5 percent to 10 percent of the estimated 16 billion syringes used worldwide were meant for vaccination and immunization, said Prashant Yadav, a senior fellow at the Center for Global Development, a think tank in Washington, and an expert on health care supply chains.

Astronomers have found the farthest known source of radio emissions in the universe: a quasar 13 billion light-years from Earth spewing jets of particles at nearly the speed of light. Live Science reports: Quasars are some of the oldest, most distant, most massive and brightest objects in the universe. They make up the cores of galaxies where a rapidly spinning supermassive black hole gorges on all the matter that's unable to escape its gravitational grasp. While the black hole is devouring this matter, it's also blasting out an enormous amount of radiation that collectively can be more than a trillion times more luminous than the brightest stars, making quasars the brightest objects in the observable universe.

This quasar in particular, named P172+18, is a relic from around 780 million years after the Big Bang and reveals clues about one of the earliest ages of the universe -- the epoch of reionization. At the start of this period, the universe was darkly veiled by a mostly uniform cloud of hydrogen gas. Scientists refer to this time as the universe's dark ages, because most light emitted was quickly absorbed by the neutrally charged gas. Eventually, gravity collapsed the primordial gas into the first stars and quasars, which began to heat and ionize the surrounding gases, allowing light to pass through. [...] Further observations from telescopes [...] showed that P172+18 is nearly 300 million times more massive than the sun and is among the fastest-growing quasars ever discovered. The problem is, scientists don't know how a black hole became so massive this early on in the universe. The radio jets could be an explanation. The researchers' findings will be published in The Astrophysical Journal.

France concealed the true impact of its nuclear tests in the Pacific from the 1960s to the 1990s, a study has said. From a report: Researchers used declassified French military documents, calculations and testimonies to reconstruct the impact of a number of the tests. They estimated that around 110,000 people in French Polynesia were affected by the radioactive fallout. The number represented "almost the entire" population at the time, the researchers found. French Polynesia, a French territory made up of hundreds of islands and atolls including Tahiti, was the site of dozens of nuclear tests over 30 years. Over the course of two years, researchers analysed around 2,000 documents released by the French military and recreated the impact of "the most contaminating" of France's nuclear tests carried out between 1966 and 1974.

The study was carried out in collaboration between French news website Disclose, researchers from Princeton University and British firm Interprt. The 41st test took place over Mururoa Atoll on 17 July 1974, when the atomic cloud took a different trajectory than planned. Some 42 hours after the test codenamed Centaur, "the inhabitants of Tahiti and the surrounding islands of the Windward group were subjected to significant amounts of ionising radiation", the report says. The area was home to 110,000 people and Tahiti's main city, Papeete, alone had a population of 80,000.