As a drone glided across farmland on a December day in Truro, N.S., its robotic voice called out, "enable spraying." Two ...

Abstract: Vortex electromagnetic wave radar forms different modes by modulating the wavefront phase, and realizes two-dimensional imaging of radar targets by fast Fourier transform (FFT) or back ...

Gust load alleviation is a crucial topic for the practical application of high-altitude long-endurance unmanned aerial ...

The coldest air of the early winter season is blasting the eastern U.S. on Monday with single-digit temperatures with the wind chill, as the Polar Vortex unravels and, with it, brings dangerous arctic ...

With snow on the ground and still breezy, temperatures along the Interstate 95 corridor may feel more like the teens into early morning, with wind chills in New England possibly dropping into single ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...