An anonymous reader quotes a report from Bloomberg: When the Tohoku earthquake and tsunami ravaged Japan in 2011, ocean water flooded factories owned byRenesas Electronics Corp.Production at the swamped facilities ground to a halt — a major hit for Renesas, of course, but also a devastating blow to the Japanese car industry, which depended on Renesas for semiconductors. Lacking chips for everything from transmissions to touchscreens, Honda, Nissan, and Toyota were forced to shut down or slow output for months. As the perils of just-in-time manufacturing and the dangers of relying on a single supplier for key components became obvious, automakers vowed to steer clear of similar snafus in the future.

Yet a decade later, the global auto industry finds itself in an almost identical predicament. The catalyst for the breakdown this time is a slower-moving natural disaster: the coronavirus pandemic, which has disrupted the supply chain for makers of the electronics that are the brains of modern cars. That left automakers — which have long eschewed maintaining costly inventories of parts — scrambling to secure those components when sales rebounded. The shortage could lead to more than $14 billion in lost revenue in the first quarter and some $61 billion for the year, advisory firm AlixPartners predicts. The industry is “wedded to ‘lean manufacturing,'” says Tor Hough, founder of Elm Analytics, an industry consultant near Detroit. “They have gotten in this mode of just managing for next week or next month.”

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Source: Slashdot – Carmakers Face Billion Sales Hit From Pandemic Chip Shortage

Photographer and scientist Nathan Myhrvold has developed a camera that captures snowflakes at a microscopic level never seen before. Smithsonian Magazine reports: Myhrvold, who holds a PhD in theoretical mathematics and physics from Princeton University and served as the Chief Technology Officer at Microsoft for 14 years, leaned on his background as a scientist to create the camera. He also tapped into his experience as a photographer, most notably as the founder of Modernist Cuisine, a food innovation lab known for its high-resolution photographs of various food stuffs published into a five-volume book of photography of the same name that focuses on the art and science of cooking. Myhrvold first got the idea to photograph snowflakes 15 years ago after meeting Kenneth Libbrecht, a California Institute of Technology professor who happened to be studying the physics of snowflakes.

In simple terms, the system Myhrvold developed is comprised of one part microscope and one part camera, but with a number of parts that work in tandem to complete the arduous task of capturing an image of a snowflake, a subject that’s not only miniscule (most snowflakes measure less than a half-inch in diameter) but also quick to melt. In fact, a snowflake’s tendency to disintegrate was one of the biggest challenges Myhrvold had to overcome with this project. His solution: equipping his 50-pound camera system with a thermoelectric cooling system, a carbon fiber frame and LED lights, which give off less heat than standard lights. Every single part of his Frankenstein-esque device, which stands at about five feet in height off the ground when placed on a table, was built using materials that are less likely to cause melting or sublimation of the subject matter.

Myhrvold also had to figure out how to physically capture a snowflake. (It’s not quite as simple as hoping that the perfect snowflake just so happens to fall into your mittened hand.) He quickly learned that catching them on a glass microscope slide wouldn’t work; glass is a known insulator. But an artificial sapphire slide, made of the same crystal material as one would find in a high-end watch, had a lower thermal conductivity ratio than glass, making it the perfect material to gather specimens. […] Once safely on the slide, he focuses his microscope to take the photograph, changing the exposure one micron at a time. (For reference, the width of a human hair measures approximately 70 microns.) On average, Myhrvold photographs each snowflake more than 100 times, or as many times as he can before the snowflake starts to melt. Using specialized computer software, Myhrvold combines multiple photographs of a single specimen to create the final photograph. “That photo [is usually the result of] 100 photographs put together using computer software,” he says. “You have to take many photos in order to get a high enough resolution, because many photos put together allows you to have enough depth of field to see an entire snowflake very sharply.”

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Source: Slashdot – The Highest Resolution Photos Ever Taken of Snowflakes

According to The Verge, Google has removed nearly 100,000 negative reviews of the Robinhood app from the Google Play Store. From the report: After some disgruntled Robinhood users organized campaigns to give the app a one-star review on Google’s Play Store and Apple’s App Store — and succeeded in review-bombing it all the way down to a one-star rating — the company has now deleted enough reviews to bring it back up to nearly four stars. Robinhood came under intense scrutiny on Thursday, after the stock trading app announced it would block purchases of GameStop, AMC, and other stocks made popular by the r/WallStreetBets subreddit, and some users have already replaced their deleted one-star reviews with new ones to make their anger heard.

It’s not outside Google’s purview to delete these posts. Google’s policies explicitly prohibit reviews intended to manipulate an app’s rating, and the company says it has a system that “combines human intelligence with machine learning to detect and enforce policy violations in ratings and reviews.” Google says it specifically took action on reviews that it felt confident violated those policies, the company tells The Verge. Google says companies do not have the ability to delete reviews themselves. On Apple’s App Store, Robinhood has a 4.7 rating, and we didn’t see any reviews newer than Wednesday.

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Source: Slashdot – Google Deletes Nearly 100,000 Negative Reviews of Robinhood App