South Africans Mike and Luke Bell built the Peregreen 3 to reclaim the title of fastest quadrotor drone in the world.

They're in our phones, laptops and smartwatches—but lithium-ion batteries can be dangerous when damaged or overcharged.

Drones have become indispensable in modern warfare. That much is now clear. NATO and EU countries are therefore pooling ...

Wallbox and Bidirectional Energy launch a multi-state EV-to-home charger program for 180 homes in California and Connecticut.

The build's extreme compactness limits its practical use – without landing gear or shielding, takeoff and recovery require precision and care – but its technical ingenuity ...