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Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a technique for generating acoustic bottles in open air that can bend the paths of sound waves along prescribed convex trajectories.The acoustic “bottle” features a...

Researchers at MIT and in Saudi Arabia have developed a new way of making surfaces that can actively control how fluids or particles move across them. The work might enable new kinds of biomedical or microfluidic devices, or solar panels that could automatically clean themselves of dust and grit.The...

Timeful, a new iPhone app, syncs traditional time management tools, such as calendars and to-do lists. The app also reveals progress on tasks and illuminates how users are spending their hours at work and at home. The technology calculates how much time one needs to perform specific tasks...

A team of engineers at The University of Texas at Austin has developed a tiny, low-power device that mimics a fly’s hearing mechanism, which could be used to build the next generation of hypersensitive hearing aids with intelligent microphones that could adaptively focus only on those...

The U.S. Food and Drug Administration has issued new draft guidance that would exempt certain Class I and Class II medical devices from premarket, or 510(k),submission requirements. If a device is “exempted from premarket notification,” then the FDA would allow a device that was...

The race is on to design smaller, cheaper, and more efficient rechargeable batteries to meet power storage needs. Now, a team of researchers at Stanford University report that they have taken a big step toward designing a pure lithium anode, which, they say, would greatly advance current lithium ion batteries.