A diagram shows how an Amazon drone could land on a sloping surface while keeping its main frame level, thanks to telescoping landing legs. (Amazon Illustration via USPTO) Amazon’s inventors are ...

Despite being integral to aviation for more than a century, propellers have changed remarkably little since the Wright Brothers. A team at MIT’s Lincoln Lab has developed a new propeller shape that ...

When mentioning drones, most people automatically think of fixed-wing designs like the military Reaper UAV or of small quadcopters. However, thanks in large part to modern electronics, motors, and ...

Amazon has filed a patent to build drone propellers that can emit warning noises and certain phrases. The ecommerce giant is interested in using drones to deliver parcels to people's homes and offices ...

Drones fly while rotating multiple propellers at high speed, which makes a loud buzzing noise during flight. Some drones have reduced noise by devising the shape of the propellers. In the 'Slow-motion ...