Drones ply the liminal space between the physical and the digital - pilots fly them, but aren't in them. They are versatile and fascinating objects - the things they can do range from the mundane (aerial photography) to the spectacular - killing people, for example.
Archaeologists gave the military the idea to use aerial photographs for spying and field survey. We are fortunate that the spatial and spectral resolutions of the imagery available to us are so broadly useful for archaeology.
I give my grandfather, Dr Harold Young, a forestry Professor at the University of Maine, full credit for my career path. He pioneered the use of aerial photography in forestry in the 1950s, and we think he worked as a spy for the CIA during the Cold War, mapping Russian installations.
My grandmother flew only once in her life, and that was the day she and her new husband ascended into the skies of Victorian London in the wicker basket of a hot-air balloon. They were soon to emigrate to Canada, and the aerial ride was meant to be a last view of their beloved England.
For me, an aerial picture is no different than a close-up portrait. It's a question of framing and angle. Helicopters are great for that. But I've also used planes. Of course, I always have a harness.
The idea of aerial military surveillance dates back to the Civil War, when both the Union and the Confederacy used hot-air balloons to spy on the other side, tracking troop movements and helping to direct artillery fire.
U.S. Government propaganda tries to give the impression that aerial bombardment achieves near-surgical accuracy, so that military targets can be destroyed with minimal effect on civilians. Technical documents give a different picture.
Neither the Army nor the Navy is of any protection, or very little protection, against aerial raids.
I started collecting aerial photographs of Native American and South Pacific architecture; only the African ones were fractal. And if you think about it, all these different societies have different geometric design themes that they use. So Native Americans use a combination of circular symmetry and fourfold symmetry.
Obama's drone program, in fact, amounts to the largest unmanned aerial offensive ever conducted in military history: never have so few killed so many by remote control.