Sergey Brin's secretive airship company LTA Research and Exploration is planning to power a huge disaster relief airship with an equally record-breaking hydrogen fuel cell. From a report: A job listing from the company, which is based in Mountain View, California and Akron, Ohio, reveals that LTA wants to configure a 1.5-megawatt hydrogen propulsion system for an airship to deliver humanitarian aid and revolutionize transportation. While there are no specs tied to the job listing, such a system would likely be powerful enough to cross oceans. Although airships travel much slower than jet planes, they can potentially land or deliver goods almost anywhere.

Hydrogen fuel cells are an attractive solution for electric aviation because they are lighter and potentially cheaper than lithium-ion batteries. However, the largest hydrogen fuel cell to fly to date is a 0.25-megawatt system (250 kilowatts) in ZeroAvia's small passenger plane last September. LTA's first crewed prototype airship, called Pathfinder 1, will be powered by batteries when it takes to the air, possibly this year. FAA records show that the Pathfinder 1 has 12 electric motors and would be able to carry 14 people. That makes it about the same size as the only passenger airship operating today, the Zeppelin NT, which conducts sightseeing tours in Germany and Switzerland. The Pathfinder 1 also uses some Zeppelin components in its passenger gondola.

Researchers at the University of Maryland have turned ordinary sheets of wood into transparent material that is nearly as clear as glass, but stronger and with better insulating properties. It could become an energy efficient building material in the future. CBC.ca reports: Wood is made of two basic ingredients: cellulose, which are tiny fibres, and lignin, which bonds those fibres together to give it strength. Tear a paper towel in half and look closely along the edge. You will see the little cellulose fibres sticking up. Lignin is a glue-like material that bonds the fibres together, a little like the plastic resin in fibreglass or carbon fibre. The lignin also contains molecules called chromophores, which give the wood its brown colour and prevent light from passing through.

Early attempts to make transparent wood involved removing the lignin, but this involved hazardous chemicals, high temperatures and a lot of time, making the product expensive and somewhat brittle. The new technique is so cheap and easy it could literally be done in a backyard. Starting with planks of wood a metre long and one millimetre thick, the scientists simply brushed on a solution of hydrogen peroxide using an ordinary paint brush. When left in the sun, or under a UV lamp for an hour or so, the peroxide bleached out the brown chromophores but left the lignin intact, so the wood turned white.

Next, they infused the wood with a tough transparent epoxy designed for marine use, which filled in the spaces and pores in the wood and then hardened. This made the white wood transparent. You can see a similar effect by taking that same piece of paper towel, dip half of it in water and place it on a patterned surface. The white paper towel will become translucent with light passing through the water and cellulose fibres without being scattered by refraction. The epoxy in the wood does an even better job, allowing 90 per cent of visible light to pass through. The result is a long piece of what looks like glass, with the strength and flexibility of wood. The findings have been published in the journal Science Advances.

According to Bloomberg, Apple is working on a thinner and lighter version of the MacBook Air, the company's mass-market laptop. From the report: The new computer is planned to be released during the second half of this year at the earliest or in 2022. It will include Apple's MagSafe charging technology and a next-generation version of the company's in-house Mac processors. Apple has discussed making the laptop smaller by shrinking the border around the screen, which will remain 13-inches. The current model weighs 2.8 pounds and is just over half an inch at its thickest point.

The company considered building a larger version of the MacBook Air with a 15-inch screen, but Apple isn't moving forward with this for the next generation, said the people, who asked not to be identified discussing private matters. An Apple spokeswoman declined to comment. The new model will have a pair of USB 4 ports for connecting external devices. The new laptop is destined to be a higher-end version of the current MacBook Air, which is expected to remain in the company's lineup as an entry-level offering. Apple last updated the product in November with its own M1 Mac chip, replacing a processor from Intel Corp. Last Friday, Bloomberg reported on Apple's upgraded MacBook Pro laptops that are expected to be released later this year. They too will feature MagSafe charging, but unlike the MacBook Air, Apple's planning to bring back an SD card slot so users can insert memory cards from digital cameras. The Touch Bar is also going.

Long-time Slashdot reader AmiMoJo shares this report from Ars Technica: Amazon's competitor to SpaceX Starlink is moving through the prototype-development phase, with the company announcing yesterday that it has "completed initial development on the antenna for our low-cost customer terminal." Amazon said its "Ka-band phased-array antenna is based on a new architecture capable of delivering high-speed, low-latency broadband in a form factor that is smaller and lighter than legacy antenna designs" and the "prototype is already delivering speeds up to 400Mbps." Performance will get better in future versions, Amazon said.

Amazon in July received Federal Communications Commission approval to launch 3,236 low-Earth orbit satellites. The company says it plans to invest over $10 billion in its satellite-broadband division, which it calls Project Kuiper... Amazon didn't provide any updates on when Kuiper will be ready for customers. FCC rules give Amazon six years to launch and operate 50 percent of its licensed satellites, with a deadline date of July 30, 2026. Amazon would have to launch the rest of the licensed satellites by July 30, 2029. Amazon previously said it plans to offer broadband to customers "once the first 578 satellites are launched."
"Custom-built antenna architecture will allow Amazon to deliver a small, affordable customer terminal to connect unserved and underserved communities around the world," explains Amazon's announcement.

Ever since astronomers reached a consensus in the 1980s that most of the mass in the universe is invisible -- that "dark matter" must glue galaxies together and gravitationally sculpt the cosmos as a whole -- experimentalists have hunted for the nonluminous particles. From a report: They first set out in pursuit of a heavy, sluggish form of dark matter called a weakly interacting massive particle, or WIMP -- the early favorite candidate for the cosmos's missing matter because it could solve another, unrelated puzzle in particle physics. Over the decades, teams of physicists set up ever larger targets, in the form of huge crystals and multi-ton vats of exotic liquids, hoping to catch the rare jiggle of an atom when a WIMP banged into it. But these detectors have stayed quiet, and physicists are increasingly contemplating a broader spectrum of possibilities. On the heavy end, they say the universe's invisible matter could clump into black holes as heavy as stars. At the other extreme, dark matter could spread out in a fine mist of particles thousands of trillions of trillions of times lighter than electrons. With new hypotheses come new detection methods. Kathryn Zurek, a theoretical physicist at the California Institute of Technology, said that if current WIMP experiments don't see anything, "then I think there's going to be a substantial part of the field that's going to shift into these new kinds of experiments." Already, the work has begun.

A group of astronomers from The University of Texas at Austin has revived an idea shelved by NASA to build a lunar liquid-mirror telescope on the moon to study the first stars in the universe. "The team, led by NASA Hubble Fellow Anna Schauer, will publish their results in an upcoming issue of The Astrophysical Journal," reports Phys.Org. From the report: These first stars formed about 13 billion years ago. They are unique, born out of a mix of hydrogen and helium gasses, and likely tens or 100 times larger than the Sun. New calculations by Schauer show that a previously proposed facility, a liquid mirror telescope that would operate from the surface of the Moon, could study these stars. Proposed in 2008 by a team led by Roger Angel of The University of Arizona, this facility was called the Lunar Liquid-Mirror Telescope (LLMT). NASA had done an analysis on this proposed facility a decade ago, but decided not to pursue the project. According to Niv Drory, a senior research scientist with UT Austin's McDonald Observatory, the supporting science on the earliest stars did not exist at that point. "This telescope is perfect for that problem," he said.

The proposed lunar liquid-mirror telescope, which Schauer has nicknamed the "Ultimately Large Telescope," would have a mirror 100 meters in diameter. It would operate autonomously from the lunar surface, receiving power from a solar power collection station on the Moon, and relaying data to satellite in lunar orbit. Rather than coated glass, the telescope's mirror would be made of liquid, as it's lighter, and thus cheaper, to transport to the Moon. The telescope's mirror would be a spinning vat of liquid, topped by a metallic -- and thus reflective -- liquid. (Previous liquid mirror telescopes have used mercury.) The vat would spin continuously, to keep the surface of the liquid in the correct paraboloid shape to work as a mirror. The telescope would be stationary, situated inside a crater at the Moon's north or south pole. To study the first stars, it would stare at the same patch of sky continuously, to collect as much light from them as possible. The team is proposing that the astronomical community revisit the shelved plan for a lunar liquid-mirror telescope, as a way to study these first stars in the universe.

Daimler, which has worked on hydrogen technology for decades, is developing a fuel-cell semi with range of up to 600 miles per fueling and next-generation battery trucks amid intensifying competition to curb diesel and carbon exhaust from heavy-duty vehicles. Forbes reports: The German auto giant's truck unit showed off the Mercedes-Benz GenH2, a concept truck designed for long haul runs that will be tested by customers in 2023, at an event in Berlin Tuesday outlining steps it's taking to meet the goals of the Paris Climate Agreement. Volume production of GenH2s starts in the second half of the 2020s. The company also debuted its Mercedes-Benz eActros LongHaul, a battery-powered truck for short- and medium-range routes goes about 300 miles (500 kilometers) between charges. eActros production starts in 2024.

Both trucks share Daimler's new ePowetrain modular platform to help hold costs down. They'll be available initially in Europe, though versions for North America and Japan will arrive around the same time, the company said. [...] A unique twist with Daimler's GenH2 truck is that the system relies on liquid hydrogen, rather than highly compressed hydrogen gas, the current standard. The benefit is that liquid hydrogen is more energy dense and uses tanks that are much lighter than those required for gaseous fuel, Daimler said. "This gives the trucks a larger cargo space and higher payload weight," while also improving range, it said. The combination of hydrogen and battery vehicles "enables us to offer our customers the best vehicle options, depending on the application," Daimler Chairman Martin Daum said at the event. "Battery power will be rather used for lower cargo weights and for shorter distances. Fuel-cell power will tend to be the preferred option for heavier loads and longer distances."

Facebook has unveiled the Oculus Quest 2, including its release date and price, and it promises to be a big leap over the original. Android Authority reports: The second-generation standalone, Android-powered virtual reality headset will be available on October 13 starting at $299 for a model with 64GB of storage, a full $100 below the price of the first Quest. Pre-orders are open now. The Oculus Quest 2 is much more powerful than its predecessor, with a Snapdragon XR2 chip and 6GB of RAM instead of the aging Snapdragon 835 and 4GB of RAM. That should lead to more advanced games and an overall smoother VR experience, although you'll need to wait for titles that take full advantage of the added power.

You may notice the improved display technology right away, however. The Quest 2 boasts the company's sharpest visuals yet, with a single LCD screen providing 1,832 x 1,920 resolution for each eye -- 50% more pixels than the 1,400 x 1,600 displays in the first Quest. It's the highest-resolution Oculus headset to date. The Oculus Quest 2 also supports much more natural-feeling 90Hz refresh rates, although it won't be available upon release. You'll have to settle for 72Hz at first. It could also be the most comfortable. The Quest 2 is both smaller and 10% lighter than before, with a soft head strap that should make for an easier fit. The Touch controllers are improved, too, with upgraded haptic feedback, better hand tracking, and a thumb rest. Add-ons will help, for that matter. A Fit Pack will adapt to different-sized heads, while a $49 Elite Strap and a $129 Elite Strap with Battery Pack offer both more comfort and longer VR sessions.

A team at Clemson University has come up with a new design that overcomes some of the problems with incorporating silicon into lithium-ion batteries, "enabling them to demonstrate a lightweight and multipurpose device that could be used to power satellites and spacesuits," reports New Atlas. From the report: Scientists have been investigating the potential of silicon in lithium-ion batteries for a long time, and with good reason. Using the material for the anode component instead of the graphite used today could increase the storage capacity of these devices by as much as 10 times, but there are a few kinks to iron out first. Silicon doesn't exhibit the same durability as graphite in these scenarios, tending to expand, contract and break apart into small pieces as the battery is charged and discharged. This causes the deterioration of the anode and failure of the battery, but we have seen a number of potential solutions to this over the years, including fashioning the silicon into sponge-like nanofibers or tiny nanospheres before integrating them into the device.

The new research out of Clemson University looks to shore up the dependability of silicon with the help of carbon nanotube sheets called Buckypaper, which we've also seen used in the development of next-generation heat shields for aircraft. These sheets were paired with tiny, nanosized silicon particles in what the team says is an arrangement much like a deck of cards, with the silicon particles sandwiched in between each layer. "The freestanding sheets of carbon nanotubes keep the silicon nanoparticles electrically connected with each other," says Shailendra Chiluwal, first author on the study. "These nanotubes form a quasi-three-dimensional structure, hold silicon nanoparticles together even after 500 cycles, and mitigate electrical resistance arising from the breaking of nanoparticles." The beauty of this approach, according to the team, is that even if the charging and discharging of the battery causes the silicon particles to break apart, they remain locked inside the sandwich and able to perform their function. This means that, theoretically, this functioning but experimental battery has a much higher capacity, which means the energy can be stored in much lighter cells, reducing the overall weight of the device. As a bonus, the use of the nanotubes creates a buffer mechanism that enables the batteries to be charged at four times the speed of current iterations, according to the scientists. The research was published in the journal Applied Materials and Interfaces.

tedlistens writes: Facing questions about a mysterious series of changes to some fact-check labels, Facebook recently wrote to a group of senators with an assurance: its fact checkers can and do label "opinion" content if it crosses the line into falsehood. What Facebook didn't tell the senators: the company draws that line, and can pressure changes to fact checks & misinformation penalties. And it does. Facebook acknowledged to me that it may ask fact checkers to change their ratings, and that it exercises control over pages' internal misinformation strikes.

In one case -- a video containing misinformation about climate change published by PragerU -- Facebook downgraded a fact-check label from "false" to "partly false," and removed the page's misinformation strikes. Was the change warranted? "Let me put it this way," says Scott Johnson, an editor at Climate Feedback, one of Facebook's third-party fact checking organizations. "Our reviewers gave it a -2 rating on our +2 to -2 scale and our summary describes it as 'incorrect and misleading to viewers,' so we had selected the 'false' label accordingly."

In some cases the video now carries no apparent label at all. After an update that Facebook announced last week, the company is using what it calls a "lighter-weight warning label" for "partly false" content in the U.S.: an unobtrusive box below the video under "related articles" that says "fact check," with a link. Meanwhile, older versions of the video appeared to evade labels completely: A handful of other PragerU posts containing the video appear without any labeling, a review by Fast Company found. Versions of the labeled and unlabeled video have now racked up millions of views since April 2016, when it was first published.

Thelasko writes: The world's biggest nuclear fusion project has entered its five-year assembly phase. After this is finished, the facility will be able to start generating the super-hot "plasma" required for fusion power. The $23.5 billion facility has been under construction in Saint-Paul-lez-Durance, southern France. Advocates say fusion could be a source of clean, unlimited power that would help tackle the climate crisis. Iter is a collaboration between China, the European Union, India, Japan, South Korea, Russia and the US. All members share in the cost of construction. Current nuclear energy relies on fission, where a heavy chemical element is split to produce lighter ones. Nuclear fusion, on the other hand, works by combining two light elements to make a heavier one. This releases vast amounts of energy with very little radioactivity. Iter will confine hot plasma within a structure called a tokamak in order to control fusion reactions. The project will aim to help demonstrate whether fusion can be commercially viable. France's President Emmanuel Macron said the effort would unite countries around a common good.

Researchers from the University of Stirling, UK, have embedded ceramic spheres in aluminum foam to create a material that couldn't be cut with angle grinders, power drills or water jet cutters. "They dubbed it Proteus after the shape-shifting Greek god, for the way the material metamorphosed in different ways to defend against attacks," reports New Scientists. From the report: "It's pretty amazing," says Miranda Anderson at the University of Stirling, UK, who worked on the project. Rather than just being a hard surface that resists external pressure, the material turns the force of the drill or cutting mechanism back on itself, as the ceramic spheres create vibrations that disrupt the external force. "It actually destroys the cutting blade through the sideways jerky vibrations that it creates, or it widens the water jet's spray," says Anderson.

The material has a second defense mechanism. Attempting to cut it breaks the ceramic spheres into smaller fragments which are even harder and act like very tough sandpaper. "So the attack mechanism causes the material to become more resistant to the attack," says Anderson. While an angle grinder took 45 seconds to cut through steel armor used to protect against explosive mines, it was rendered inoperative by Proteus. The only comparable structure in the natural world is diamond, says Anderson, but Proteus is cheaper and lighter, making it practical for a range of applications, from security doors and barriers to shoe soles or elbow pad and forearm guards for workers. She believes it can be mass-produced, as there is no shortage of the metals and ceramics it is made from. The new material has been reported in the journal Scientific Reports.

According to The Globe and Mail, Alphabet is rumored to be acquiring smart glasses maker North for $180 million. 9to5Google reports: This comes after North in December stopped selling Focals to focus on launching second-generation smart glasses sometime in 2020. "Focals 2.0" has been teased over the past several months with North claiming that they would be the "most significant product introduction to date in the category." A "lighter" and "sleeker" design would have a "10x display," while miniaturizing the technology by 40%.

Sales of the first-generation device are described as "minuscule" in today's report: "One person close to the sales operations says it's unlikely North sold many more than 1,000 pairs. Its only retail stores, in Toronto and Brooklyn, N.Y., often went days without a single sale." In ending sales, North has not been bringing in any revenue, and the company is running out of money even after slashing monthly spending in half to $3 million. Despite taking on additional investment and loans, North is said to have started looking for a buyer earlier this year.

An anonymous reader quotes a report from CNBC: Tesla confirmed Monday night that it recently cut the price of the 2020 Model S Long Range Plus by $5,000 and boasted that the EPA-rated range for this version of the Model S -- meaning the number of miles the vehicle can travel per single charge in testing conditions -- has increased to 402 miles. A spokesperson for the Environmental Protection Agency told CNBC in an e-mail on Tuesday: "EPA can confirm that we approved a 402 mile range for the updated Tesla Model S Long Range Plus. Tesla has updated the 2020 Model S Long Range Plus vehicle making several changes to the vehicle from the one EPA previously tested. EPA approved the new label value based on a review of the testing protocols and data submitted by Tesla and found it was complete and accurate. Fueleconomy.gov will be updated in about a week with this information."

In other words, the EPA approved Tesla's right to advertise a 402-mile range rating for the latest version of the Model S Long Range Plus, but the agency has not conducted its own tests of the vehicle. In Tesla's blog post on Monday, the company focused on the ways in which it has improved the range of the Model S Long Range Plus as compared to earlier versions of the company's flagship electric sedan. Among other things, Tesla said it achieved range improvements by reducing the mass of the vehicle by using lighter weight materials in its battery pack and drive units, and other lighter weight components. It also updated its "HOLD" features which allow drivers to remain stopped on a hill without having to keep the brake pedal pressed down. These features maximize regenerative braking in the Model S and other Tesla vehicles that have it. Last month, the EPA rebuffed comments Elon Musk made concerning what he calls an error during the Model S Long Range's testing process, which the executive says cost the car a 400-mile range estimate. The agency said it conducted the testing properly.

"The real Model S range is 400 miles, but when we did the last EPA test, unfortunately, a TA left the car door open and the keys in the car," said Elon Musk at the time. "So the car -- and they did this overnight. And so, the car actually went into a waiting for driver mode and lost 2% of its range. And as a result, it had a 391 test. As soon as the EPA reopens for testing, we will redo the test, and we're actually confident that we will achieve a 400-mile or greater range with the Model S. But to be clear, the Model S, for the past two months -- the true range of the Model S for the past two months has been 400 miles."

Writing today in the journal Science, researchers report a startling discovery: After collecting rainwater and air samples for 14 months, they calculated that over 1,000 metric tons of microplastic particles fall into 11 protected areas in the western U.S. each year. That's the equivalent of over 120 million plastic water bottles. Wired: To quantify just how bad the problem has become across the American West, the researchers used collectors in 11 national parks and protected areas, sampling both rain and air. Each had a "wet" bucket to collect rainwater, and a "dry" bucket to collect air. A sensor would detect rainfall and open up the "wet" bucket while closing the dry one. And vice versa when it's sunny out, so the dry bucket would collect microplastic particles carried on the wind while the wet bucket stayed shut. The researchers also modeled where each particular storm they collected rain from had originated, looking at the size of the cities it traveled through before dumping water, and microplastics, into the wet bucket.

Overall, they found that a stunning 98 percent of samples collected over a year contained microplastic particles. On average, 4 percent of captured atmospheric particulates were actually synthetic polymers. The particles that fell in rain were larger than those deposited by wind -- lighter particles are more easily caught up in air currents. Microfibers, from sources like polyester clothing, made up 66 percent of the synthetic material in wet samples and 70 percent in dry samples. Plus, the team wasn't able to count clear or white particles and fibers with their equipment, so their tally is likely conservative.

Sweden's death rate per million (376) "is far in advance of Norway's (44), Denmark's (96) and Finland's (55) — countries with similar welfare systems and demographics, but which imposed strict lockdowns..." reports the Guardian, "raising concerns that the country's light-touch approach to the coronavirus may not be helping it build up broad immunity."

"According to the scientific online publication Ourworldindata.com, Covid-19 deaths in Sweden were the highest in Europe per capita in a rolling seven-day average between 12 and 19 May. The country's 6.25 deaths per million inhabitants a day was just above the UK's 5.75."

Slashdot reader AleRunner writes: Immunity levels in Sweden, which were expected to reach 33% by the start of May have been measured at only 7.3%, suggesting that Sweden's lighter lockdown may continue indefinitely whilst other countries begin to revive their economies. Writing about new Swedish antibody results in the Guardian Jon Henley goes on to report that other European countries like Finland are already considering blocking travel from Sweden which may increase Sweden's long term isolation.

We have discussed before whether Sweden, which locked down earlier than most but with fewer restrictions could be a model for other countries.

As it is, now, the country is looking more like a warning to the rest of the world.
The Guardian concludes that the Swedish government's decision to avoid a strict lockdown "is thought unlikely to spare the Swedish economy. Although retail and entertainment spending has not collapsed quite as dramatically as elsewhere, analysts say the country will probably not reap any long-term economic benefit."

9to5Mac has learned more exclusive details about Apple's upcoming over-ear headphones, dubbed the "AirPods Studio," including specifications and settings. From the report: One of the key features of regular AirPods is ear detection, which automatically pauses the song when you take the earphones off. We've learned that AirPods Studio will have a similar feature, but it will work in a different way. Instead of ear detection, Apple is working to include sensors that can detect whether the headphones are on your head or neck. Based on this, we assume that AirPods Studio will play or pause content when they detect being placed on your head. Neck detection can be used to keep the headset turned on while the music is paused, just like when you take just one of the AirPods out of the ear.

Another new sensor will be able to detect left and right ears to automatically route the audio channels. That means there's likely no right or wrong side to use AirPods Studio, whereas current headphones have fixed left and right channels. Just like the AirPods Pro, Apple's new headphones will have Active Noise Cancellation and Transparency Mode. Users will be able to easily switch between the two modes to reduce external noise or to hear the ambient sound.

As AirPods Studio are expected to be mainly focused on professional users, pairing the earphones with a Mac or iOS device will unlock custom equalizer settings, with low, medium, and high frequency adjustments available, sources told us. According to a Bloomberg recent report, Apple's own-brand over-ear headphones will be available in at least two variations of the headphones -- one using leather fabrics and another with lighter materials to fitness use cases. Bloomberg also said Apple is testing a new modular design with exchangeable magnetic ear pads. [...] As for the price, rumors suggest that it will cost $349.

An anonymous reader quotes a report from Ars Technica: Crawling along the world's river bottoms, the larvae of the caddis fly suffer a perpetual housing crisis. To protect themselves from predators, they gather up sand grains and other sediment and paste them all together with silk, forming a cone that holds their worm-like bodies. As they mature and elongate, they have to continuously add material to the case -- think of it like adding rooms to your home for the rest of your life, or at least until you turn into an adult insect. If the caddis fly larva somehow loses its case, it's got to start from scratch, and that's quite the precarious situation for a defenseless tube of flesh. And now, the microplastic menace is piling onto the caddis fly's list of tribulations.

Microplastic particles -- pieces of plastic under 5 millimeters long -- have already corrupted many of Earth's environments, including the formerly pristine Arctic and deep-sea sediments. In a study published last year, researchers in Germany reported finding microplastic particles in the cases of caddis flies in the wild. Then, last month, they published the troubling results of lab experiments that found the more microplastic particles a caddis fly larva incorporates into its case, the weaker that structure becomes. That could open up caddis flies to greater predation, sending ripple effects through river ecosystems. In the lab, the researchers found that the larvae chose to use two kinds of microplastics to build their cases, likely because the plastic is lighter than the sand, so it's not as hard to lift. The problem is that the cases with more plastic and less sand collapse more easily, weakening the larvae's protection from predatory fish, among other things.

A more long-term concern is bioaccumulation. "A small fish eats a larva, a bigger fish eats the smaller fish, all the way on up, and the concentrations of microplastic and associated toxins accumulate over time," the report says. "The bigger predators that people eat, like tuna, may be absorbing those microplastics and the chemicals they leach."

The study has been published in the journal Environmental Science and Pollution Research.

An anonymous reader quotes a report from Bloomberg: Facebook's Oculus division is building a new version of its Quest standalone virtual reality headset, but the device is facing potential delays due to the impact of Covid-19 on product development and the global supply chain. The social-networking giant is working on multiple potential successors to the Quest. Some models in advanced testing are smaller, lighter, and have a faster image refresh rate for more realistic content, according to people familiar with the matter. These headsets also have redesigned controllers, said the people, who asked not to be identified discussing unannounced products.

The company hasn't finalized which new version of the Quest it will release, and the final product may have different features. Facebook originally planned to launch the new model at the end of 2020, around its annual Oculus Connect conference, but the coronavirus pandemic could delay the headset from shipping until 2021, the people said. Some versions in testing are 10% to 15% smaller than the current Quest. That, in addition to being lighter, makes them more comfortable to wear, one of the people said. The existing model weighs about 1.25 pounds, which is too heavy for some users wearing the device for extended periods. The models in testing are closer to a pound, the person said. The company could sell the new model alongside the current Quest, or choose to fully replace it.

An anonymous reader quotes a report from Bloomberg: Apple is developing over-ear wireless headphones with parts that can be swapped in and out, seeking to augment its AirPods business with a high-end audio product. The Cupertino, California-based tech giant is working on at least two variations, including a premium version with leather-like fabrics and a fitness-focused model that uses lighter, breathable materials with small perforations. Prototypes of the headphones have a retro look with oval-shaped ear cups that swivel and a headband connected by thin, metal arms. The arms stem from the top of the ear cups rather than the sides.

The ear pads and headband padding attach to the frame of the headphones magnetically so they can be replaced by the user. That approach is similar to some headphones from Master & Dynamic and Bowers & Wilkins, though those models only have magnetic ear pads. Apple's more modular design will allow users to customize their headphones like they do with the Apple Watch. The design may also mean the same set of headphones would be convertible from comfort to fitness use and back again. Apple plans to use similar wireless-pairing and noise-cancellation tech in its upcoming headphones to what is already in the AirPods Pro. The company aims to unveil the product later this year, however complications during final development or from the Covid-19 pandemic could affect the timing and features again.