Energy & Green Tech

Why is it so hard to make batteries smaller and lighter?

Flat coin cell batteries (the kind used in watches) have been around for decades. But the combination of solid and liquid components makes it very hard to see how the components fail inside these batteries.

Energy & Green Tech

Megawatt electrical motor could help electrify aviation

Aviation's huge carbon footprint could shrink significantly with electrification. To date, however, only small all-electric planes have gotten off the ground. Their electric motors generate hundreds of kilowatts of power. ...

Electronics & Semiconductors

Slow electrons for more efficient reactions

What an international team of researchers actually set out to do was to detect a mysterious chemical object: a dielectron in solution. A dielectron is made up of two electrons, but unlike an atom, it has no nucleus. Up to ...

Engineering

Bio-inspired device captures images by mimicking human eye

Drawing inspiration from nature, Penn State scientists have developed a new device that produces images by mimicking the red, green and blue photoreceptors and the neural network found in human eyes.

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