3 ms·
> only pigeons could have done before. I find this peculiar. Hydrogen balloons were used for surveillance in the Civil War, 40 years earlier. It would have bee
by skookumchuck 9y ago
> only pigeons could have done before.
I find this peculiar. Hydrogen balloons were used for surveillance in the Civil War, 40 years earlier. It would have been easy to attach a camera to a small hydrogen balloon, with a clockwork device to puncture the balloon to bring it down in a reasonable distance.
- fenwick67 9y ago> It would have been easy to attach a camera to a small hydrogen balloon, with a clockwork device to puncture the balloon to bring it down in a reasonable distance. Maybe, but homing pigeons have a few advantages. They return to their home "automatically" and they are not as conspicuous flying through the air.