Drones Have Transformed Blood Delivery in Rwanda
The autonomous aircraft have shuttled blood to rural, mountainous areas for years. A new analysis proves they’re faster than driving. ..
The autonomous aircraft have shuttled blood to rural, mountainous areas for years. A new analysis proves they’re faster than driving. ..
The lithium-ion battery is good for moving cars short distances, but aviation requires longer-lasting power. Maybe we need to try other elements. ..
A first commercial test flight shows how fuel made from plants, not petroleum, could make flying cleaner. ..
The copter safely whirled its way up and back down, demonstrating the first powered, controlled flight on another planet. ..