synchronous belt
41Geosynchronous orbit — A geosynchronous orbit is an orbit around the Earth with an orbital period matching the Earth s sidereal rotation period [V. Chobotov, ed., (1996) Orbital Mechanics, 2nd edition , AIAA Education Series, p. 304.] . This synchronization means that… …
42Zimbabwe craton — The Zimbabwe craton is an example of Early Archaean lithology dating back to 3.5 Gigaannum Ga. in the southern African nation of Zimbabwe [Wilson, J.F., Nesbitt, R.W., Fanning, C.M., 1995. Zircon geochronology of Archaean felsic sequences in the… …
43Volam Vietnam — Vo Lam Vietnam Budhist Cultural Art of Vietnam Martial Art of VietnamVo Lam Vietnam Original Kung Fu is an ancient art of self preservation. It was developed by three bhiksus fully ordained Buddhist monks from the land of snow, modern day Tibet,… …
44Space elevator — A space elevator for Earth would consist of a cable anchored to the Earth s equator, reaching into space. By attaching a counterweight at the end (or by further extending the cable upward for the same purpose), the center of mass is kept well… …
45Messinian salinity crisis — Events of the Cenozoic view • discuss •  …
46Saturn — /sat euhrn/, n. 1. an ancient Roman god of agriculture, the consort of Ops, believed to have ruled the earth during an age of happiness and virtue, identified with the Greek god Cronus. 2. Astron. the planet sixth in order from the sun, having an …
47Callisto (moon) — Callisto View of the heavily cratered terrain of Callisto s anti Jovian hemisphere obtained in 2001 by NASA s Galileo spacecraft. The large impact structure Asgard is on the limb at upper right. The prominent rayed crater below and just right of… …
48Remus (moon) — Infobox Planet | discovery=yes | physical characteristics = yes | bgcolour=#A0FFA0 | minorplanet=yes | width=29em name=Remus discovery ref = [http://cfa www.harvard.edu/iauc/08500/08582.html IAUC 8582] , announcing the discovery of S/2004 (87) 1… …
49Military equipment of Turkey — The military equipment of Turkey includes a wide array of arms, artilleries, large surface vessels, cannons, armored vehicles, mortars, unmanned vehicles and many different equipments. Contents 1 Historical development 1.1 General 1.2 1923 1950 …
50Massif Central (geology) — The Massif Central forms together with the Armorican Massif (Brittany and Normandy) one of the two big basement massifs in France. Its geological evolution started in the late Neoproterozoic and continues to this day. It has been shaped mainly by …
