Engineering

Engineers solve 50-year-old puzzle in signal processing

Something called the fast Fourier transform is running on your cell phone right now. The FFT, as it is known, is a signal-processing algorithm that you use more than you realize. It is, according to the title of one research ...

Computer Sciences

Data scientist builds a detailed network map of 'The Witcher'

"The Witcher," a fantasy novel series by Andrzej Sapkowski, has become increasingly popular, following the release of several videogames and a spin-off series by Netflix. The latest season of the show, uploaded on Netflix ...

Internet

Study traces the origins and diffusion of image memes online

Memes, images or videos with text overlays that convey funny messages to specific audiences are a well-known global phenomenon. As they tend to rapidly circulate online and become viral quickly, memes are also sometimes included ...

Computer Sciences

AI learns to type on a phone like humans

Touchscreens are notoriously difficult to type on. Since we can't feel the keys, we rely on the sense of sight to move our fingers to the right places and check for errors, a combination of tasks that is difficult to accomplish ...

Energy & Green Tech

Researchers develop a cobalt-free cathode for lithium-ion batteries

Researchers at the University of California, Irvine and four national laboratories have devised a way to make lithium-ion battery cathodes without using cobalt, a mineral plagued by price volatility and geopolitical complications.

Engineering

Dropping off microdrones, at low cost and easily stacked

The U.S. Naval Research Laboratory has been working on stackable little drones. Payloads could be interconnected to form an ad-hoc, self-configuring network. The Lab has a name for this concept, CICADA which stands for Close-In ...

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