Acoustics Articles

• Chemistry
  Nature of Water
  Inorganic Chemistry
  Sports Science
  Thermodynamics
  Graphene
   
  

  Sodium

  Sodium is the chemical element in the periodic table that has the symbol Na and atomic number 11. Sodium is a soft, waxy, silvery reactive metal belonging to the alkali metals that is abundant in ... > more
• Alternative Fuels
  Astrophysics
  Fuel Cells
  Organic Chemistry
  Energy and Resources
  Galaxies
   
  

  Hydrogen

  Hydrogen is a chemical element in the periodic table that has the symbol H and atomic number 1. At standard temperature and pressure it is a colorless, odorless, nonmetallic, univalent, tasteless, ... > more
• Spintronics
  Chemistry
  Inorganic Chemistry
  Textiles and Clothing
  Energy Policy
  Albert Einstein
   
  

  Periodic table

  The periodic table of the chemical elements is a tabular method of displaying the chemical elements, first devised in 1869 by the Russian chemist Dimitri Mendeleev. Mendeleev intended the table to ... > more
• Geography
  Technology
  Consumer Electronics
  Earthquakes
  Geomagnetic Storms
  Telecommunications
   
  

  Global Positioning System

  The Global Positioning System, usually called GPS, is the Earth's only fully-functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing ... > more
• Transportation Science
  Automotive and Transportation
  Healthy Aging
  Vehicles
  Workplace Health
  Sports Medicine
   

  Road-traffic safety

  Road-traffic safety aims to reduce the harm (deaths, injuries, and property damage) resulting from crashes of road vehicles traveling on public roads. Harm from road-traffic crashes is greater than ... > more
• Graphene
  Chemistry
  Inorganic Chemistry
  Sports Science
  Nature of Water
  Physics
   
  

  Gallium

  Gallium is a chemical element in the periodic table that has the symbol Ga and atomic number 31. A rare, soft silvery metallic poor metal, gallium is a brittle solid at low temperatures but liquefies ... > more
• Chemistry
  Sports Science
  Inorganic Chemistry
  Organic Chemistry
  Physics
  Graphene
   
  

  Boron

  Boron is a chemical element in the periodic table that has the symbol B and atomic number 5. A trivalent metalloid element, boron occurs abundantly in the ore ... > more
• Chemistry
  Sports Science
  Inorganic Chemistry
  Materials Science
  Spintronics
  Engineering and Construction
   
  

  Chromium

  Chromium is a chemical element in the periodic table that has the symbol Cr and atomic number 24. Chromium is a steel-gray, lustrous, hard metal that takes a high polish, and has a high melting ... > more
• Sports Science
  Chemistry
  Spintronics
  Inorganic Chemistry
  Graphene
  Materials Science
   
  

  Manganese

  Manganese is a chemical element in the periodic table that has the symbol Mn and atomic number 25. Manganese is essential to iron and steel production by virtue of its sulfur-fixing, deoxidizing, and ... > more
• Sports Science
  Weapons Technology
  Chemistry
  Inorganic Chemistry
  Physics
  Energy and Resources
   
  

  Cobalt

  Cobalt is a chemical element in the periodic table that has the symbol Co and atomic number 27. Cobalt is a hard, lustrous, silver-gray metal, a chemical element with symbol Co. It is found in ... > more

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