Thanks to advancing capabilities and greater accessibility, the use of drones is continuing to increase. In fact, global drone sales reached $4.3m in 2015, a 167-percent jump from two years ago. This surge should come as no surprise as people find more and more useful ways to put drones to work.
Google, Amazon and DHL are working on drones that could someday deliver packages straight to your doorstep. Unfortunately, most drones would struggle to carry something as heavy as a textbook more than a dozen kilometers on battery power.