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

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.


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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