what is that coming down? some of us here are not too armament saavy.. are those bullets.. a series of bombs? fire? lasers? It is pretty!
It's probably a time-lapsed photo of tracer fire from an AC-130
Tracer bullets from the Vulcan cannons. That is a time laps shot. It arcs through the sky because the plane is moving and arcs across the ground because there are plenty of things down there to shoot and it does not take long to shoot each and every one.
those are tracers.
1/3 rounds is a tracer IIRC
some troops load ALL tracers if they can get away with it - going for the full "Star Wars" effect.
IIRC, those are tracer rounds from the 40 mm cannon. Every 5th round is a tracer round. Gives you an idea of just how much death one of those things can spread.
http://www.fas.org/man/dod-101/sys/ac/ac-130.htm
Read up...the Bofors is even an old ww2 era calibre that was used as an anti-aircraft battery. Of course it's been adjusted over time. The Vulcan 20mm (6,000 rounds a minute) and the Gatling 25mm (1,800 rnd/min) is a good start.
It's tracers from the guns. In person, it looks like lasers which is impressive, but then when you realize that the tracer is only every 100th round, it is a freakin unbelievable rain of steel.
Time lapse photo, that's the only way you'll see the "tornado" (not that the effect of the fire is any less devastating)....