This flying machine can't properly be called a drone, as the pilot sits inside the vehicle. Yet the eight small rotors, the simple open-air construction, and vertical takeoff all make it seem drone-inspired. The Swedish maker behind the “amazingdiyprojects” Youtube channel built himself an eight-engined platform that flies. Like this:
Geology is the science of stones, of their shapes and formations and locations and changes over time. Human history, too, is a study, in part, of stones: ones shaped by humans, piled high by humans, flung at high velocities by humans at other humans. There is history in rocks and rocks in history.