Forest fires are a persistent problem for the U.S, and our best line of defence is still all too often just men on the ground with backhoes. But combining a remotely-piloted quadcopter with Kaman’s ...

Leonardo da Vinci is best known for works like the Mona Lisa and The Last Supper, but what you might not know is that in the 1480s—hundreds of years before the first flight—the polymath sketched a ...