Аннотация:DOI : 10.1134/S1990793125700976 Experimental and theoretical analysis of Long-lived luminous Formation - Ball lightning creation in experiments and nature have been made. Experiments with plasma jet from the standard erosive plasma generator have been carried out. Studies a possibility of creating analogues of BL in laboratory conditions at plasma jet influence on metals: aluminum, iron, copper, solder in order to find out. Energy input from the plasma generator was 1200-1500 J. The current maximum I, was 72 A, plasma pulse time was 7-25 ms. Spherical luminous formations with dimensions up to 1.5 cm and a lifetime of up to 3-7 s were obtained. They have a shell and a cavity filled by a vapor. By a way of motion, they are similar to natural ball lightning. The similarity of these objects to natural ball lightning is discussed. Theory of ball lightning based on these experiments has been presented. It describes ball lightning as a formation with a quasi- solid cover and an internal core filled by a hot gas. Electric charges from the linear lightning makes the ball lightning highly charged object.
