title: Magnetic levitation-based Martian and Lunar gravity simulator.
abstract: Missions to Mars will subject living specimens to a range of low gravity environments. Deleterious biological effects of prolonged exposure to Martian gravity (0.38 g), Lunar gravity (0.17 g), and microgravity are expected, but the mechanisms involved and potential for remedies are unknown. We are proposing the development of a facility that provides a simulated Martian and Lunar gravity environment for experiments on biological systems in a well controlled laboratory setting. The magnetic adjustable gravity simulator will employ intense, inhomogeneous magnetic fields to exert magnetic body forces on a specimen that oppose the body force of gravity. By adjusting the magnetic field, it is possible to continuously adjust the total body force acting on a specimen. The simulator system considered consists of a superconducting solenoid with a room temperature bore sufficiently large to accommodate small whole organisms, cell cultures, and gravity sensitive bio-molecular solutions. It will have good optical access so that the organisms can be viewed in situ. This facility will be valuable for experimental observations and public demonstrations of systems in simulated reduced gravity.
authors.affiliation: Department of Physics, Brown University, Providence, RI 02912, USA. valles@physics.brown.edu
authors.forename: J M
authors.initials: JM
authors.lastname: Valles
authors.forename: H J
authors.initials: HJ
authors.lastname: Maris
authors.forename: G M
authors.initials: GM
authors.lastname: Seidel
authors.forename: J
authors.initials: J
authors.lastname: Tang
authors.forename: W
authors.initials: W
authors.lastname: Yao
mesh_terms: D000818:Animals; D001695:Biology; D055592:Biophysical Phenomena; D001703:Biophysics; D001709:Biotechnology; D018466:Gravity Sensing; D018470:Gravity, Altered; D008279:Magnetic Resonance Imaging; D008280:Magnetics / Q000295:instrumentation*; D018535:Mars; D016081:Moon; D010247:Paramecium; D012107:Research Design; D018561:Space Simulation / Q000379:methods*; D019415:Torque; D018474:Weightlessness Simulation / Q000379:methods*