Also called: Hematoma, Hemorrhage. Bleeding is the loss of blood. It can happen inside or outside the body. Bleeding can be a reaction to a cut or other wound. It can also result from an injury to internal organs.
Altair or Alpha Aquilae (Alp Aql) is the brightest naked eye star in the constellation Aquila. With an apparent magnitude of 0.76v, Altair is the 12th brightest star in the entire sky (see: 50 Brightest Stars). Its absolute magnitude is 2.2 and its distance is 16.8 light years. The Equinox J2000 equatorial coordinates are RA = 19h 50m 47.0s, Dec = +08Â° 52' 06. Altair has a spectral type of A7V, a surface temperature of 7500Â° Kelvin and a luminosity 10.6 times the Sun.
The magnitude of an earthquake, usually expressed by the Richter Scale, is a measure of the amplitude of the seismic waves. The moment magnitude of an earthquake is a measure of the amount of energy released - an amount that can be estimated from seismograph readings. The intensity, as expressed by the Modified Mercalli Scale, is a subjective measure that describes how strong a shock was felt at a particular location. The Richter Scale, named after Dr. Charles F. Richter of the California Institute of Technology, is the best known scale for measuring the magnitude of earthquakes.