To provide a technique for levitating by converting atmospheric heat to propulsion force with a reduced fine work.

When oxygen and nitrogen (hereafter air molecular) composing air come into a system composed of a double slit and a screen, diffraction and interference effects by to de Broglie wave behavior are developed. As a result, air molecular may not rebound from the screen and come out from the slit even if the same comes into the slit from a right front thereof. If an exhaust part exists between the slit and the screen, the air molecular may come out from the same. That means that isotropy of atmosphere as a classical image collapses under a quantum theory image and propulsion force acts on such a system. Since a de Broglie wavelength of air molecular is short, a series of effects are more remarkable as the system is smaller. Electromagnetic force or centrifugal force is applied on colloid gas under macroscopic control, a fine structure is mounted by colloid particle, and strong propulsion force is provided.