Improving crop yields while conserving resources

When it comes to the health of the planet, agriculture and food production play an enormous role. According to the Food and Agriculture Organization of the United Nations, roughly 37 percent of land worldwide is used for ...

100 years ago, airmail took flight

On December 25, 1918 a daring French industrialist launched the world's first ever airmail service, flying between the southwestern French city of Toulouse and Barcelona in northeastern Spain.

Preventing concrete bridges from falling apart

Extremes of temperature, rain, exposure to corrosive substances—all of these environmental factors contribute to the degradation of concrete. Specifically, a gas present in our environment, called hydrogen sulphide, turns ...

Understanding dynamic stall at high speeds

When a bird in flight lands, it performs a rapid pitch-up maneuver during the perching process to keep from overshooting the branch or telephone wire. In aerodynamics, that action produces a complex phenomenon known as dynamic ...

Drone delivers vaccines in key Vanuatu trial

A one-month-old on a remote island in the Pacific archipelago of Vanuatu became the first child to be immunised in a commercial trial of drone-delivered vaccines, the UN children's fund UNICEF said Tuesday.

Researchers shine new light on disease-spreading mosquitoes

When the West Nile virus (WNV) was initially isolated in two patients at a Queens, N.Y., hospital in the summer of 1999, it would have been hard to anticipate how quickly one common species of house mosquito, Culex pipiens, ...

Image: Space chips etched in silicon

Multiple integrated circuits destined to serve as the brains of Europe's future space missions are etched together onto single pieces of silicon.

page 23 from 40