Tiny firefly drones start to glow as they take off: they were filmed

The team has improved flying robots - now they can glow like fireflies. It will help better

Track devices even in total darkness.

The new work builds on the team's previous work on ultra-light flying robots.

A key component of the devices was a soft drivein the form of a cylinder, which was made from alternating layers of elastomer and carbon nanotubes. When voltage is applied, the carbon electrodes compress the elastomer, which creates mechanical stress that causes the wing to flap.

During the new work, the authors modifiedactuators so that they glow during operation. To do this, they introduced zinc sulfate particles into the outer layer of the elastomer. These particles are electroluminescent, which means they glow in the presence of an electric field—in this case, one that passes through layers of carbon nanotubes.

According to the authors, the light from the drones can be used to track them and also to interact with each other.

Read more

The young star “hid” something that changed the view of scientists about the Universe. The main thing

Two planets found not far from Earth that are very similar to ours

Physicists have created an atomic laser that can work forever