gravity-operated
131Thomas Pynchon — Infobox Writer name = Thomas Pynchon imagesize = 155px caption = Thomas Pynchon in 1957, one of the few photographs of him ever to be published pseudonym = birthdate = Birth date and age|1937|5|8|mf=y birthplace = Glen Cove, New York, USA… …
132Geostationary orbit — Geostationary orbit.To an observer on the rotating Earth (fixed point on the Earth), the satellite appears stationary in the sky. A red satellite is also geostationary above its own point on Earth. Top Down View …
