By BeauHD from Slashdot's currently-in-the-works department
An anonymous reader quotes a report from The Wall Street Journal: Amazon is planning to open dozens of grocery stores in several major U.S. cities (Warning: source may be paywalled; alternative source), according to people familiar with the matter, as the retail giant looks to broaden its reach in the food business. The company plans to open its first grocery store in Los Angeles as early as the end of the year, one person said. Amazon has already signed leases for at least two other grocery locations with openings planned for early next year, this person said. The new stores would be distinct from the company's upscale Whole Foods Market brand, though it is unclear whether the new grocery chain would carry the Amazon name. Amazon is also exploring an acquisition strategy to widen the new supermarket brand by purchasing regional grocery chains with about a dozen stores under operation, one person said. The new stores aren't intended to compete directly with Whole Foods, these people said. The new chain would offer a wider variety of products than what is on the shelves at the more upscale Whole Foods stores. The company is reportedly in talks to open grocery stores in shopping centers in San Francisco, Seattle, Chicago, Washington, D.C., and Philadelphia.Read Replies (0)
By msmash from Slashdot's interesting-idea department
Biting your tongue at yet another questionable article shared in your message group? Add artificial-intelligence fact-checker Meiyu, she will jump in with 'False.' From a report: The artificial-intelligence bot will interject in real time when she detects posts about the news, pointing out factual errors and alternative interpretations. The technology, created by Taiwanese developers, is a step ahead of most fact-checking apps, including versions offered in Brazil and Indonesia, which don't jump into conversations. Other popular fact-checkers, such as Snopes in the U.S., are public databases that users consult for reviews of news items. Meiyu quickly became hot in Taiwan, which had just gone through divisive local elections and is rife with rumors of China's interference in social media. The bot now has more than 110,000 users on the Japanese messaging app Line, which covers about 90% of the mobile-messaging market in Taiwan.Read Replies (0)
By msmash from Slashdot's closer-look department
An anonymous reader shares a column: Everything about "Red Dead Redemption 2" is big. The latest open-world western, released in October by Rockstar Games, constantly reminds you of this. It takes roughly 15 minutes for its bland everycowboy star, Arthur Morgan, to gallop across the 29-square-mile map. It has 200 species of animals, including grizzly bears, alligators, and a surprising number of birds. It takes about 45.5 hours to play through the main quest, and 150-plus hours to reach 100 percent completion. There are more than 50 weapons to choose from, such as a double-barreled shotgun and a rusty hatchet. It's big, big, big.
[...] On top of all the bigness, "Red Dead Redemption 2" is also incredibly dull. I've been playing it off and on since it was released, and I'm still waiting for it to get fun. I'm not alone in thinking so -- Mark Brown of Game Maker's Toolkit called it "quite boring" and Mashable said it's a "monumental disappointment." There are a glut of Reddit posts from people complaining about how slow the game feels, usually with a tone of extreme self-consciousness. Unless you're a real a**hole, it's not exactly fun to stray from popular consensus. Perhaps the general hesitancy to criticize the game is due to the fact that it's not technically bad. Its graphics and scale really are impressive. It is designed to please.
And yet "RDR2" seems to exemplify a certain kind of hollowness that's now standard among Triple-A titles. It's very big, with only tedium inside. Call it a Real World Game. The main problem with "RDR2" is that it's comprised almost entirely of tedious, mandatory chores. It always feels like it's stalling for time, trying to juke the number of hours it takes to complete it.Read Replies (0)
By msmash from Slashdot's closer-look department
Alison Griswold, writes on her newsletter Oversharing: I took a look at data on scooter rides in Louisville, Kentucky, shared online as part of the city's open data policy. The latest data is available here. The data set I used was older and included monthly data on scooter trips from August through December. It also included a unique "ID" for each scooter, a detail that was key to my analysis and has been stripped out of subsequent data sets published by Louisville. The data doesn't differentiate between Bird and Lime, but as Bird started operations in August 2018 and Lime that November, you can assume it skews toward Bird.
With that preamble, here are some things I found: The average lifespan of a scooter in Louisville from August to December was 28 days. Median lifespan was 23 days. If you stripped out scooter IDs that first appeared in December, to focus on older vehicles, the average lifespan increased slightly to 32 days and the median lifespan to 28 days. Still stripping out scooter IDs that started in December, the median scooter took 70 trips over 85 miles.
Scooter lifespan is a key factor in scooter unit economics, as you may recall. The more trips and miles a single scooter can cover, the better for shared scooter companies, which have to recoup the cost of each vehicle before they can start making any money. In October, The Information reported that Bird was spending $551 per scooter with a goal of reducing that cost to $360. At the time, I said that meant Bird needed five rides a day on a $551 scooter for 5.25 months just to recoup the initial cost. The picture painted by the Louisville data is even worse.
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By BeauHD from Slashdot's click-to-reveal department
An anonymous reader quotes a report from TechCrunch: Twitter today confirmed it's developing a new "Hide Tweet" feature, which it says will give users another option to protect their conversations. The option, spotted in Twitter's code, is available from a list of moderation choices that appear when you click the "Share" button on a tweet -- a button whose icon has also been given a refresh, it seems. Like it sounds, "Hide Tweet" functions as an alternative to muting or blocking a user, while still offering some control over a conversation. Related to this, an option to "View Hidden Tweets" was also found to be in the works. This allows a user to unhide those tweets that were previously hidden by the original poster.
Immediately, there were concerns that an option like this would allow users to silence their critics -- not just for themselves, as is possible today with muting and blocking -- but for anyone reading through a stream of Twitter Replies. Imagine, for example, if a controversial politician began to hide tweets they didn't like or those that contradicted an outrageous claim with a fact check, people said. It also requires the user to click to view the Replies that were hidden, which some users may not know to do and others may not bother to do. They may then miss out on an important point in the conversation, or a critical fact check. On the flip side, putting the original poster back in control of which Replies are visible may allow people to feel more comfortable with sharing on Twitter, which could impact user growth -- a number Twitter struggles with today. And it could encourage people to debate things with less vitriol, knowing that their nastier tweets could get hidden view. The "Hide Tweet" feature was first discovered by Jane Manchun Wong.Read Replies (0)
By BeauHD from Slashdot's clever-thinking department
A new patent application from Apple, titled "Electronic Devices with Flexible Displays," describes how the company could prevent foldable smartphone displays from getting damaged in extreme temperatures. "While at or in the region of typical temperatures hospitable to humans, folding systems may work fine, but adhesives and other elements used in a device's production may become more resistant to flexing at cold temperatures, which could cause unwanted wear or damage to the display if attempted in such conditions," reports AppleInsider. "To mitigate the cold temperature, Apple simply suggests there should be some way to warm up the area of the display panel where the bend takes place." From the report: As part of Apple's solution, an onboard temperature sensor is used to determine how warm the device is, and whether or not there is any danger to allowing the screen to be flexed by the user. The warming process itself can be performed by a heating element located near to the section that bends the most, with heat conductors transferring the warmth to where it is required. A heating element may not be practical to add to such a device, which has led to Apple suggesting an alternative, namely using the heat generated by illuminating the screen. To do this, a screensaver could be used that concentrates most on the bent section, such as by making it brighter and lit up more than the rest of the screen.
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By BeauHD from Slashdot's promising-findings department
An anonymous reader quotes a report from ScienceDaily: Humans and other mammals are limited to seeing a range of wavelengths of light called visible light, which includes the wavelengths of the rainbow. But infrared radiation, which has a longer wavelength, is all around us. People, animals and objects emit infrared light as they give off heat, and objects can also reflect infrared light. A multidisciplinary group of scientists led by Xue and Jin Bao at the University of Science and Technology of China as well as Gang Han at the University of Massachusetts Medical School, developed the nanotechnology to work with the eye's existing structures.
In this study, the scientists made nanoparticles that can anchor tightly to photoreceptor cells and act as tiny infrared light transducers. When infrared light hits the retina, the nanoparticles capture the longer infrared wavelengths and emit shorter wavelengths within the visible light range. The nearby rod or cone then absorbs the shorter wavelength and sends a normal signal to the brain, as if visible light had hit the retina. "In our experiment, nanoparticles absorbed infrared light around 980 nm in wavelength and converted it into light peaked at 535 nm, which made the infrared light appear as the color green," said one of the researchers. The researchers tested the nanoparticles in mice, which, like humans, cannot see infrared naturally. Mice that received the injections showed unconscious physical signs that they were detecting infrared light, such as their pupils constricting, while mice injected with only the buffer solution didn't respond to infrared light. The study was published in the journal Cell.Read Replies (0)
By BeauHD from Slashdot's behind-the-scenes-efforts department
The New York Times reported Thursday that an open letter will be published in the Times on Friday that asks Amazon to reconsider its decision to walk away from its plan to build a 25,000-employee campus in Long Island City, Queens. The company pulled the plug on the project, dubbed HQ2, following vocal and persistent opposition to the plan after it was announced three months ago. CNET reports: The letter was signed by the CEOs of Mastercard, Warby Parker, Goldman Sachs, Tishman Speyer and Jetblue, among others. The presidents of the Building & Construction Trades Council of Greater New York and state AFL-CIO, which were expecting thousands of construction jobs to come from the project, also signed, as did U.S. Reps. Hakeem Jeffries and Carolyn Maloney. "We know the public debate that followed the announcement of the Long Island City project was rough and not very welcoming," the letter stated. "Opinions are strong in New York -- sometimes strident. We consider it part of the New York charm! But when we commit to a project as important as this, we figure out how to get it done in a way that works for everyone."
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By BeauHD from Slashdot's but-at-what-cost department
dryriver writes: BBC Future reports on a geoengineering technique called "marine cloud brightening" that makes marine Stratocumulus clouds -- which currently reflect almost 30% of total Solar radiation back into space -- whiter, causing them to reflect more sunlight away from earth. Professor Stephen Salter of Edinburgh University, a well-known 1970s wave and tidal power pioneer, has designed an unmanned hydro-foil ship, computer-controlled and wind-powered, which pumps an ultra-fine mist of sea salt toward the cloud layer, causing it to turn white: "'Spraying about 10 cubic meters per second could undo all the [global warming] damage we've done to the world up until now,' Salter claims. And, he says, the annual cost would be less than the cost to host the annual UN Climate Conference -- between $100-$200 million each year. Salter calculates that a fleet of 300 of his autonomous ships could reduce global temperatures by 1.5C. He also believes that smaller fleets could be deployed to counter-act regional extreme weather events. Hurricane seasons and El Nino, exacerbated by high sea temperatures, could be tamed by targeted cooling via marine cloud brightening. Salter boasts that 160 of his ships could 'moderate an El Nino event, and a few hundred [would] stop hurricanes.' The same could be done, he says, to protect large coral reefs such as the Great Barrier Reef, and even cool the polar regions to allow sea ice to return. So, what's the catch? Well, there's a very big catch indeed. The potential side-effects of solar geoengineering on the scale needed to slow hurricanes or cool global temperatures are not well understood. According to various theories, it could prompt droughts, flooding, and catastrophic crop failures. Another major concern is that geoengineering could be used as an excuse to slow down emissions reduction, meaning CO2 levels continue to rise and oceans continue to acidify -- which, of course, brings its own serious problems."Read Replies (0)