Weightlessness induces bone loss. Understanding the nature of this loss and developing means to counteract it are significant challenges to potential human exploration missions. This article reviews the existing information from studies of bone and calcium metabolism conducted during space flight. It also highlights areas where nutrition may play a specific role in this bone loss, and where cou...

One reports experiments and numerical simulations of Faraday waves at the liquid - vapor interface fluids (typically CO2 H2) near its critical point when submitted to vibration in a weightlessness environment. It is known that such system striation formed under action vibrations. The boundary between gas phases located perpendicular direction vibrations, streaky structure form periodic stripes ...

We study a model of autonomous unipolar charge injection from the cathode in poorly conductive liquid steady electric field flat horizontal capacitor. According to this model, density injected into has constant term and directly proportional strength An electrohydrodynamic approximation is used. The case weightlessness an isothermal considered. equilibrium distributions potential limiting were ...

Two new findings, that crystals located in the inner ear gravity receptors of mammals have the internal organization requisite for the piezoelectric property, and that sensory hair cells of these same receptors possess contractile-appearing striated organelles, have prompted the author to model mammalian gravity receptors in the ear on the principles of piezoelectricity and bioenergetics. This ...

The paper is devoted to the study of formation stratification in an incompressible fluid due convective laminar flows horizontal layers heated from side. Medium and intensive modes stationary thermal, concentrational thermo-concentrational (in particular thermohaline) convection are considered, which nonlinear flow features manifested, can radically change structure characteristics heat mass tr...