Picture of the day

[mcpiper]

That's a hell of a good pic, piper. The sense of movement is brilliant.

Thanks, that's why I knew I had to share it when I saw it!

 

[Dark Alley Dan]

This photograph captures German soldiers operating a sound detector during World War II, a device used to locate aircraft by detecting their sonic booms. The equipment, developed in the 1930s, was part of Germany's early anti-aircraft defense systems before the advent of radar.

Bit early for sonic booms, no? Obsolete mid-war, years before Yeager and the X1 made the first aircraft generated sonic boom...