Energy Technology Articles

• Acid Rain
  Pollution
  Air Pollution
  Organic Chemistry
  Biochemistry
  Environmental Issues
   
  

  Acid

  An acid (often represented by the generic formula HA) is traditionally considered any chemical compound that, when dissolved in water, gives a solution with a pH of less than 7.0. That approximates ... > more
• Ice Ages
  Global Warming
  Climate
  Nature of Water
  Oceanography
  Snow and Avalanches
   
  

  Ice age

  An ice age is a period of long-term reduction in the temperature of Earth's climate, resulting in an expansion of the continental ice sheets, polar ice sheets and mountain glaciers. Glaciologically, ... > more
• Sports Science
  Sports Medicine
  Healthy Aging
  Attention Deficit Disorder
  Pregnancy and Childbirth
  Workplace Health
   
  

  Leonardo da Vinci

  Leonardo da Vinci (born April 15, 1452 in Vinci, Italy, and died on May 2, 1519 in Cloux, France) was an Italian Renaissance architect, musician, anatomist, inventor, engineer, sculptor, geometer, ... > more
• Healthy Aging
  Attention Deficit Disorder
  Inorganic Chemistry
  Chemistry
  Nuclear Energy
  Dietary Supplement
   

  Heavy metals

  A heavy metal is any of a number of higher atomic weight elements, which has the properties of a metallic substance at room temperature. Living organisms require trace amounts of some heavy metals, ... > more
• Chemistry
  Inorganic Chemistry
  Nature of Water
  Sports Science
  Organic Chemistry
  Petroleum
   
  

  Argon

  Argon is a chemical element in the periodic table. It has the symbol Ar and atomic number 18. The third noble gas, in group 18, argon makes up about 1% of the Earth's atmosphere, making it the most ... > more
• Graphene
  Chemistry
  Inorganic Chemistry
  Sports Science
  Physics
  Nature of Water
   
  

  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
• Inorganic Chemistry
  Materials Science
  Sports Science
  Chemistry
  Nanotechnology
  Vehicles
   
  

  Scale model

  A scale model is a representation or copy of an object that is larger or smaller than the actual size of the object being represented. Very often the scale model is smaller than the original and used ... > more
• Transportation Science
  Sports Science
  Detectors
  Physics
  Solar Energy
  Optics
   
  

  Navigation

  There are several traditions of navigation. In the pre-modern history of human migration and discovery of new lands by navigating the oceans, a few peoples have excelled as sea-faring ... > more
• Chemistry
  Inorganic Chemistry
  Sports Science
  Weapons Technology
  Organic Chemistry
  Air Quality
   
  

  Fluorine

  Fluorine is the chemical element in the periodic table that has the symbol F and atomic number 9. Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the ... > more
• Sports Science
  Physics
  Quantum Physics
  Nature of Water
  Batteries
  Chemistry
   
  

  Nature

  Nature (also called the material world, the material universe, the natural world, and the natural universe) is all matter and energy, especially in its essential form. Nature may refer to the general ... > more

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