How black boxes became key to solving airplane crashes

After the search for survivors and recovery of victims in tragic aviation accidents — like that of a UPS cargo plane shortly after takeoff from Louisville Muhammad Ali International Airport in Kentucky last month — comes the search for flight data and a cockpit voice recorder often called the “black box.” Every commercial plane has them. Aerospace giants…

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Nvidia Blackwell, Google TPUs, AWS Trainium: Comparing top AI chips

Nvidia outperformed all expectations, reporting soaring profits Wednesday thanks to its graphics processing units that excel at AI workloads. But more categories of AI chips are gaining ground. Custom ASICs, or application-specific integrated circuits, are now being designed by all the major hyperscalers, from Google’s TPU to Amazon’s Trainium and OpenAI’s plans with Broadcom. These…

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Why superior speed isn’t selling EVs

Electric vehicles have quicker acceleration than gas cars, and the fastest ones can now reach the highest top speeds in the world. That helped make Tesla one of the strongest brands in the automotive world, and prove EVs were more than golf carts. But sales data and insiders — and even fans — say it…

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Why ThredUp and the secondhand retail market is booming in the U.S.

At ThredUp‘s 600,000-square-foot warehouse in Suwanee, Georgia, roughly 40,000 pieces of used clothing are processed each day. The company’s logistics network — four facilities across the U.S. — now rivals that of some fast-fashion giants. “This is the largest garment-on-hanger system in the world,” said Justin Pina, ThredUp’s senior director of operations. “We can hold…

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Startup founders react to bubble fears

Markets were on edge this week as a steady stream of negative headlines around the artificial intelligence trade stoked fears of a bubble. Famed short-seller Michael Burry cast doubt on the sustainability of AI earnings. Concerns around the levels of debt funding AI infrastructure buildouts grew louder. And once high-flyers like CoreWeave tanked on disappointing guidance. CNBC’s Deirdre Bosa asked those at…

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Why Sweetgreen sales, stock are falling

Fast-casual salad chain Sweetgreen is struggling as its traffic and sales continue to fall and it reports millions in losses each quarter. Its earnings worsened in its third quarter this year, as same-store sales declined 9.5% due in part to a 11.7% drop in foot traffic. Sweetgreen revolutionized the quick service industry after launching in…

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How Trump’s tariffs are crushing small businesses

U.S. small businesses are reeling under the weight of President Donald Trump‘s tariffs. Unlike large retailers, many of which have the resources and scale to blunt the effects of higher costs, many small companies facing bigger tariff bills are struggling to survive. Eunice Byun, the CEO of Material Kitchen, a small business that sells kitchenware…

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