Engineering

Changing shapes at the push of a button

Programmable materials are true shapeshifters. They can change their characteristics in a controlled and reversible way with the push of a button, independently adapting to fit new conditions. They can be used, for example, ...

Energy & Green Tech

Producing 'green' energy from living plant 'bio-solar cells'

Though plants can serve as a source of food, oxygen and décor, they're not often considered to be a good source of electricity. But by collecting electrons naturally transported within plant cells, scientists can generate ...

Consumer & Gadgets

Measuring water with your smartphone

You might take photos and selfies with your phone's camera, or scan a QR code. But there is much more you can do with it. Astronomer Olivier Burggraaff developed a phone attachment that allows you to take measurements of ...

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