The ingrained belief that it is impossible to move unsupportedly is based on a misperception of the law of conservation of momentum in a mechanically closed system, which is true only for abstract material points ....... This is a theoretical simplification ,. Replaced real physics with mathematical construction, , , [ and led to error..................................... because in reality there is a fundamental difference between the mathematics of material points and the physics of bodies , ...... [ since bodies have geometric dimensions and are distributed by mass volume, This allows technical constructions to create conditions for non-fulfillment of Newton's second and third laws. This edition describes the principles of obtaining unsupportive motion and describes the description of ideas and their implementation in technical structures that allow you to move in space only by changing the internal state of the system without irretrievably discarding mass, as in rocket engines. For specialists in theoretical mechanics, developers of space technology, students of technical universities and all interested in the future of mankind