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Uber Records First Annual Profit

In a first for Uber since becoming a public company, the ride-hailing service posted its first full-year profit and its stock hit an all-time high Wednesday. “Like its final year as a private company, the last time Uber turned a profit, it got a huge tailwind from investments that helped fuel profits, $1 billion in

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Lawny Five Keeps Lawn Mowed, Snow Plowed

Although there’s been considerable excitement over the past half century of a Jetsons-like robotic future, outside of a few niche uses of our day-to-day lives there hasn’t been much in the way of robotic assistants coming to ease our physical household workloads. Sure, robots exist in manufacturing and other industrial settings, but the vast majority

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3D Printing Silicone Parts

Silicone is a useful material for many purposes. Traditionally, creating something out of silicone required injection molding. That’s not difficult, but it does require a good bit of setup. As [Formlabs] points out in a recent video, there are at least three other routes to create silicone parts that utilize 3D printing technology that might

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A Tube Tester Laid Bare

There’s still a mystique around vacuum tubes long after they were rendered obsolete by solid state devices, and many continue to experiment with them. They can be bought new, but most of us still come to them through the countless old tubes that still litter our junk boxes. But how to know whether your find

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Fortnite is winning the metaverse

Lego Fortnite. | Image: Epic Games In 2021, Facebook’s parent company got a new name and a new goal. “Over time, I hope we are seen as a metaverse company,” CEO Mark Zuckerberg said at the time. He later called the metaverse “the successor to the mobile internet” and noted that the concept would be

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