Figure 3.

Ground-based s-µg facilities: (A) The Random Positioning Incubator (RPI) developed by the ‘Fachhochschule Nordwestschweiz’ (FHNW) and the ‘Eidgenössische Technische Hochschule’ (ETH) Zurich, Switzerland, (B) a desk-top random positioning machine housed in an incubator purchased from Yuri GmbH Meckenbeuren, Germany, (C) the NASA-developed Rotating Wall Vessel, (D) the ClinoStar CO₂ incubator with integrated clinostat (CelVivo ApS, Odense, Denmark), and (E) a 2D fast-rotating clinostat for adherent cells in slide flasks (developed by the German Space Agency, Cologne, Germany).