Searching for Alien Life with the Sun as Gravitational Telescope

Astronomy is undoubtedly one of the most exciting subjects in physics. Especially the search for exoplanets has been a thriving field in the last decades. While the first exoplanet was only discovered in 1992, there are now 4,144 confirmed exoplanets (as of 2nd April 2020). Naturally, we Sci-Fi lovers are …read more

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The Gorgeous Hardware We Can’t Take Our Eyes Away From

High resolution digital cameras are built into half of the devices we own (whether we want them or not), so why is it still so hard to find good pictures of all the incredible projects our readers are working on? In the recently concluded Beautiful Hardware Contest, we challenged you …read more

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We Asked 105 Experts What Scares and Inspires Them Most About the Future

Climate change, extremism, and artificial intelligence were among the top fears, and young people, technology, and equality were among the top hopes. Continue reading We Asked 105 Experts What Scares and Inspires Them Most About the Future

What Voltage for the All-DC House?

The war of the currents was fairly decisively won by AC. After all, whether you’ve got 110 V or 230 V coming out of your wall sockets, 50 Hz or 60 Hz, the whole world agrees that the frequency of oscillation should be strictly greater than zero. Technically, AC won out because of three intertwined facts. It was more economical to have a few big power plants rather than hundreds of thousands of tiny ones. This meant that power had to be transmitted over relatively long distances, which calls for higher voltages. And at the time, the AC transformer was …read more

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