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We put a dozen new air purifiers through comprehensive lab testing to find out which ones offer the best particle filtering, noise levels and energy efficiency. Here are our five new winners for the new year.
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One of the many concerns about artificial intelligence these days is how the rush to build data centers is impacting local communities. Data centers can create a drain on resources, and some utility companies have already said customers can expect to see their electricity bills growing as these facilities increase demand. There have been some discussions of what other power sources could support the AI engine, and wind power specialist Airloom is one company that's looking to address the problem. Ahead of the business' upcoming appearance at CES, we've learned a bit about what Airloom has accomplished this year and what it is aiming for next.
Rather than the very tall towers typically used for this approach, Airloom's structures are 20 to 30 meters high. They are comprised of a loop of adjustable wings that move along a track, a design that's akin to a roller coaster. As the wings move, they generate power just like the blades on a regular wind turbine do. Airloom claims that its structures require 40 percent less mass than a traditional one while delivering the same output. It also says the Airloom's towers require 42 percent fewer parts and 96 percent fewer unique parts. In combination, the company says its approach is 85 percent faster to deploy and 47 percent less expensive than horizontal axis wind turbines. Airloom broke ground on a pilot site in June for testing out its approach and confirming how those figures work in practice.
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 One of the more enjoyable things about covering tiny houses is seeing each country's take on the art of downsizing. The Mizuho showcases a Japanese approach to the concept, squeezing in a home working area and a downstairs bedroom into a compact footprint.
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 Apple today added the final 13-inch MacBook Air powered by Intel processors, the Apple Watch Series 5, and additional products to its vintage products list. The iPhone 11 Pro was also added to the list after the iPhone 11 Pro Max was added back in September.
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 Scientists from the University of Pennsylvania (Penn) and the University of Michigan have created the world's smallest autonomous and programmable robots. Each measuring about 200 micrometers wide - roughly twice the width of a human hair - these machines can perceive their surroundings, "think," and act independently without external instructions. According to their developers, such technology could one day monitor the health of individual cell
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