The sonic black hole and making the artificial event horizon by using the same method are giving new visions for stealth technology.

The sonic black hole and making the artificial event horizon by using the same method are giving new visions for stealth technology. 

The sonic black hole is a fascinating thing, and that thing brings an idea, what if the aircraft or some other thing is surrounded by the hollow whirl, where the air can move in from forward? The structure of this sonic whirl is like the tube, where the air molecules are rotating the object like they are making in the fluid, which forms the sonic black hole. In the sonic black hole, the fluid is moving faster than sound, and that thing causes that the molecules will trap in that phenomenon because the molecules of whirl are moving faster than the speed of sound. 

So what if we would start to rotate the plasma around the object with the speed of the light. Would that plasma deny that the object cannot see outside that plasma whirl? The thing is that electrons or protons, what is orbiting the object similar way as the whirl of liquid are orbiting when they are creating the sonic black hole. That thing makes it possible that the photons cannot escape from that tube except the end of that plasma or electron tube. And that thing makes that the object is invisible from outside of that electromagnetic tube. 

Sonic black holes: https://en.wikipedia.org/wiki/Sonic_black_hole

So are the USO (Unidentified Submerged Objects), or the large, cylinder-shaped undersea objects the sonic black holes, what are covering the nuclear submarines?

What if we would make the sonic black hole by using air molecules? That thing means the tornado, where air molecules are moving faster than the local speed of sound. So how to deny the sound, what comes from that whirl? The fact is that the counter waves, or counter noise, what is created by using the loudspeakers, what are at fixed position or quadcopters can make that fast tornado noiseless, and the whirl what is orbiting the target can turn the ammunition away from their course. 

That thing can revolutionize stealth technology. But it can also make it possible to create a space, that cannot keep any sound. The sonic black hole is the whirl of fluid is moving faster than the speed of the sound, which means that the soundwaves cannot escape from that area. The sonic black hole gives interesting ideas that what if the aircraft or some other vehicle can form a similar whirl around it, and that thing makes it possible to make the aircraft or some other thing, which would make no noise at all. And this whirl around some room or building denies the ability to eavesdrop that area.