The question of the "absolutely impossible" flight of the hammer
To the question of circumnavigated helicopters and shrimp helicopters.

The phenomenon of this insect is still completely unstudied. In fact, with their
> physical data it makes something absolutely impossible.

When will you learn to google before you declare something like that?
From the same Wikipedia:
There is a widespread belief that from the point of view of aerodynamics, hamsters cannot fly. Shmel cannot fly according to the aerodynamics equations used in calculating the lifting force of aircraft. Insect flights occur at completely different Reynolds numbers (similarity coefficient) than aircraft flights.
If you compare the hamster with an airplane, whose wings are immovable, the area of the wings of the insect relative to volume and body weight would not allow it to rise from the ground when displaced. But the hammer would be more accurately compared to a helicopter: in the insect, each of the two rear wings is connected to the front wings by a series of tiny hooks that cling to the pulling edge of the front wings. This mechanism forms a sharring node, sufficiently flexible along its longitudinal axis. With each swing, the ends of the wings describe the "eight", creating air spirals along the length of the wings. These spirals provide sufficient lifting force for the body of the hammer and its flight.

Stop composting people’s brains.