law of precession
111Astronomy — • Divided into two main branches, astrometry and astrophysics; the former concerned with determining the places of the investigation of the heavenly bodies, the latter, with the investigation of their chemical and physical nature Catholic… …
112Diving — This article is about the sport of jumping into water, often acrobatically. For swimming below the surface of the water, see underwater diving. For other uses, see Dive (disambiguation). cliff diving redirects here. For other uses, see… …
113Julian calendar — The Julian calendar began in 45 BC (709 AUC) as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year (known at… …
114Geostationary 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 …
115Janez Strnad — (born March 4, 1934) is a Slovene physicist and populariser of natural science. Life and work Strnad was born in Ljubljana, Kingdom of Yugoslavia (now Slovenia).He taught for many years from 1961 at the University of Ljubljana, Faculty for… …
116Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance …
117Cardiac output — (Q or or CO ) is the volume of blood being pumped by the heart, in particular by a left or right ventricle in the time interval of one minute. CO may be measured in many ways, for example dm3/min (1 dm3 equals 1000 cm3 or 1 litre). Q is… …
118Rigid body — Classical mechanics Newton s Second Law History of classical mechanics  …
119Battle of Pliska — Infobox Military Conflict conflict=Battle of Pliska caption=Ruins of Pliska partof=the Byzantine Bulgarian Wars date=26 July, 811 place=Pliska and Vărbitsa Pass result=Decisive Bulgarian victory combatant1=Bulgarian Empire combatant2=Byzantine… …
120Orbital eccentricity — This article is about eccentricity in astrodynamics. For other uses, see Eccentricity (disambiguation). An elliptic Kepler orbit with an eccentricity of 0.7 (red), a parabolic Kepler orbit (green) and a hyperbolic Kepler orbit with an… …
