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Single brain scan can diagnose Alzheimer's disease


The research uses machine learning technology to look at structural features within the brain, including in regions not previously associated with Alzheimer's. The advantage of the technique is its simplicity and the fact that it can identify the disease at an early stage when it can be very difficult to diagnose.
 

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Tesla is killing off coal and gas plants with its giant battery projects


In 2019, Tesla introduced the Megapack, a battery the size of a shipping container designed to kill coal- and gas-fired "peaker" power plants.

Peaker plants sit idle for most of the day, but fire up to provide extra energy whenever demand for electricity spikes and the power grid can't keep up. Tesla pitched Megapack batteries as a more climate-friendly alternative to peaker plants because they can store renewable energy when electricity demand is low, and then pump power back onto the grid when demand peaks.
 

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Artificial photosynthesis can produce food without sunshine


Photosynthesis has evolved in plants for millions of years to turn water, carbon dioxide, and the energy from sunlight into plant biomass and the foods we eat. This process, however, is very inefficient, with only about 1% of the energy found in sunlight ending up in the plant. Scientists at UC Riverside and the University of Delaware have found a way to bypass the need for biological photosynthesis altogether and create food independent of sunlight by using artificial photosynthesis.
 

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UK embarks on world-first delivery of chemotherapy drugs by drone


In an effort to get chemotherapy treatment to patients in a more timely manner, the UK's National Health Service (NHS) is embarking on a new drone delivery trial for the Isle of Wight. Billed as the first of its kind, the trial is expected to demonstrate how hours can be cut from the delivery times of the vital drugs, and lessen the need for cancer sufferers to travel to the mainland for treatment.
 

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USPS to more than double order of electric trucks


The U.S. Postal Service will order more than twice the number of electric vehicles initially projected for its new fleet, the agency announced Wednesday.

The move follows months of controversy after the Postal Service initially sought to make about 10 percent of its fleet electric. Now it plans to make at least 40 percent of its fleet electric.
 

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Man who built ISP instead of paying Comcast $50K expands to hundreds of homes


Jared Mauch, the Michigan man who built a fiber-to-the-home Internet provider because he couldn't get good broadband service from AT&T or Comcast, is expanding with the help of $2.6 million in government money.

When we wrote about Mauch in January 2021, he was providing service to about 30 rural homes including his own with his ISP, Washtenaw Fiber Properties LLC. Mauch now has about 70 customers and will extend his network to nearly 600 more properties with money from the American Rescue Plan's Coronavirus State and Local Fiscal Recovery Funds, he told Ars in a phone interview in mid-July.
 

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Chemistry breakthrough extracts oxygen from water using magnets


In what's described as a key advancement for the development of systems to help propel humans into deep space, scientists have demonstrated a method of extracting oxygen from water in microgravity using magnets. The technology shapes as a cost-effective and viable way to keep astronauts breathing during their journeys, and marks an important breakthrough for the production of oxygen from water in the absence of buoyant forces.
 

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Super-fast electric car charging, with a tailor-made touch


Despite the growing popularity of electric vehicles, many consumers still hesitate to make the switch. One reason is that it takes so much longer to power up an electric car than it does to gas up a conventional one. But speeding up the charging process can damage the battery and reduce its lifespan. Now, scientists report that they've designed superfast charging methods tailored to power different types of electric vehicle batteries in 10 minutes or less without harm.
 

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Honda is the latest automaker looking to build a US battery factory


North American lithium-ion battery production is set to soar over the next decade. The Biden administration and Congress have both put policies in place to incentivize domestic manufacturing over imports, and startups, battery companies, and automakers are responding. Honda and LG Energy Solutions are the most recent to make moves; on Monday morning, the companies announced that they are forming a $4.4 billion joint venture to build a US battery factory.
 

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This Startup Is Transforming Used Chopsticks Into Beautiful Furniture


Since 2016, Böck has been on a mission to rethink disposable chopsticks. Rather than try to eliminate them, the engineer has been building a circular economy by giving them a second life. In their homebase of Vancouver, company staff pick up around 350,000 used chopsticks from 300-plus restaurants every week, all of which become book shelves, cutting boards, coasters, desks, and custom decorations. According to Böck, the startup has saved more than 50 million pairs of chopsticks from landfills since its launch.
 
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