Biometric Articles

• Cosmic Rays
  Quantum Physics
  Physics
  Black Holes
  Sports Science
  Detectors
   
  

  Particle accelerator

  A particle accelerator is a device that uses electric fields to propel electrically charged particles to high speeds and magnetic fields to contain them. An ordinary CRT televison set is a simple ... > more
• Thermodynamics
  Energy Technology
  Sports Science
  Physics
  Aviation
  Solar Energy
   
  

  Heat pump

  A heat pump is a machine which moves heat from a low temperature reservoir to a higher temperature reservoir under supply of ... > more
• Astrophysics
  Galaxies
  Cosmology
  Physics
  Black Holes
  Astronomy
   
  

  Redshift

  In physics and astronomy, redshift is an observed increase in the wavelength of electromagnetic radiation received by a detector compared to that emitted by the source. For visible light, red is the ... > more
• Ozone Holes
  Chemistry
  Air Quality
  Environmental Issues
  Sports Science
  Inorganic Chemistry
   
  

  Haloalkane

  The haloalkanes (also known as Halogenoalkanes) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more halogens linked, such as chlorine or fluorine, ... > more
• Aviation
  Vehicles
  Sports Science
  Transportation Science
  Construction
  Energy Policy
   
  

  Boeing 747

  The Boeing 747, commonly called the Jumbo Jet, is one of the most recognizable modern airliners and is the largest airliner currently in airline ... > more
• Volcanoes
  Natural Disasters
  Sports Science
  Geology
  Global Warming
  Early Climate
   
  

  Volcano

  A volcano is an opening (or rupture) in the Earth's surface or crust, which allows hot, molten rock, ash, and gases to escape from deep below the surface. Volcanic activity involving the extrusion of ... > more
• Aviation
  Vehicles
  Sports Science
  Energy Policy
  Transportation Science
  Engineering
   
  

  Concorde

  The Aerospatiale-BAC Concorde supersonic transport (SST) was one of only two models of supersonic passenger airliners to have seen commercial service. Concorde had a cruise speed of Mach 2.02 (around ... > more
• Water
  Nature of Water
  Drought Research
  Environmental Issues
  Ecosystems
  Pollution
   
  

  Water

  Water is a tasteless, odorless, and nearly colorless (it has a slight hint of blue) substance in its pure form that is essential to all known forms of life and is known also as the most universal ... > more
• Sports Science
  Chemistry
  Inorganic Chemistry
  Weapons Technology
  Nuclear Energy
  Physics
   
  

  Krypton

  Krypton is a chemical element with the symbol Kr and atomic number 36. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionating ... > more
• Weapons Technology
  Inorganic Chemistry
  Chemistry
  Organic Chemistry
  Biochemistry
  Detectors
   
  

  Chemical warfare

  Chemical warfare is warfare using the toxic properties of chemical substances to kill, injure or incapacitate an enemy. About 70 different chemicals have been used or stockpiled as Chemical Weapons ... > more

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