In 1920, the great Nikola Tesla patented this ingenious valve that allows fluid or gas to flow in one direction but not the other. And it does it based entirely on its geometry without any moving parts. Here is the US patent, number 1,329,559.
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10:45 am Thu
Dec 12, 2019
See the magic of a Tesla Valve
Watch: How to build your own Nintendo Switch
Seattle maker Brennen Johnston wanted his friends to play Animal Crossing with him but they couldn’t get their hands on a Nintendo Switch, a scarce commodity amid COVID-19 lockdowns. Enraged by the prices scalpers were charging for a Switch, Brennen set out to build one himself from individual components. The Internet fell in love with […]
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Easy Electronics book is an excellent introduction to electronics
Charles Platt’s growing series of electronics books are the best I’ve come across. He explains concepts very clearly, and his illustrations are excellent. His latest book in the series is called Easy Electronics. It covers voltage, resistance, capacitors, transistors, integrated circuits, and more. No tools are needed to complete the projects in this book.
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Watch this impressive Lego tapas factory crank out a steady stream of snacks
The Lego masters at The Brick Wall built this fantastic contraption to crank out tapas. Technical details: 19 Lego PF motors 5 BuWizz Bricks 4 weeks of hard work
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Learn how to make your own games with the Unreal Engine for only $40
Game engines aren’t just the lifeblood of the video game industry. They may soon be the lifeblood of Hollywood. Since emerging in the late ’90s, the Unreal game engine has quickly become one of the world’s foremost tools for game creators. Now, Disney’s hit Star Wars spinoff series The Mandalorian is using Unreal as well. […]
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Don’t want to spend hundreds on AirPods? These buds are a solid alternative
Apple AirPods have become the default earbuds beloved by millions. Unfortunately, they also cost $159, so it’s no surprise that since they were first introduced in 2016, companies have battled to produce comparable headphones at a lower price. The UK-designed and engineered Veho STIX true wireless earphones may have cracked that particular problem, striking a […]
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Learn how to utilize Instagram to its fullest with these expert led classes
Instagram isn’t just for tweens and foodies. In fact, the image-heavy platform not only wants to mint new Instagram influencers — it also wants to make them rich. In the last few weeks, the company announced ad revenue sharing on IGTV videos, special badges you can buy from your favorite accounts through Instagram Live, merchandise […]
