Civil Engineering Articles

• Healthy Aging
  Attention Deficit Disorder
  Sports Science
  Sports Medicine
  Weapons Technology
  Physics
   
  

  Polonium

  Polonium is a chemical element in the periodic table that has the symbol Po and atomic number 84. A rare and highly radioactive metalloid, polonium is chemically similar to tellurium and bismuth, and ... > more
• Chemistry
  Inorganic Chemistry
  Sports Science
  Organic Chemistry
  Weapons Technology
  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
• Space Probes
  Space Exploration
  Space Station
  Vehicles
  Aviation
  Sports Science
   
  

  Multistage rocket

  A multistage (or multi-stage) rocket is, like any rocket, propelled by the recoil pressure of the burning gases it emits as it burns fuel. What characterizes it as "multi-stage" is that it ... > more
• Acoustics
  Sports Science
  Sports Medicine
  Healthy Aging
  Attention Deficit Disorder
  Albert Einstein
   
  

  Music

  Music is an art, entertainment, or other human activity which involves organized and audible sound. Musical composition is a term that describes the makeup of a piece of music. Methods of composition ... > more
• Albert Einstein
  Black Holes
  Physics
  Quantum Physics
  Sports Science
  Asteroids, Comets and Meteors
   
  

  Gravitation

  Gravity is a force of attraction that acts between bodies that have mass. Gravity is the reason for the very existence of the earth, the sun and other celestial bodies; without it matter would not ... > more
• Triglycerides
  Cholesterol
  Nutrition
  Obesity
  Diet and Weight Loss
  Fitness
   
  

  Unsaturated fat

  An unsaturated fat is a fat or fatty acid in which there is one or more double bond in the fatty acid chain. A fat molecule is monounsaturated if it contains one double bond, and polyunsaturated if ... > more
• Optics
  Cosmic Rays
  Physics
  Medical Technology
  Black Holes
  Astrophysics
   
  

  Electromagnetic spectrum

  The electromagnetic spectrum is the range of all possible electromagnetic radiation. Above infrared in frequency comes visible light. This is the range in which the sun and stars similar to it emit ... > more
• Energy and the Environment
  Renewable Energy
  Physics
  Energy Technology
  Solar Energy
  Environmental Science
   
  

  Radiant energy

  Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and lighting, but is also used less frequently in other fields ... > more
• Physics
  Albert Einstein
  Quantum Physics
  Black Holes
  Sports Science
  Cosmic Rays
   
  

  Special relativity

  Special relativity inter-relates space and time in such a way that the speed of light is constant, and the theory leads to situations where two observers can disagree over time intervals and ... > more
• Nuclear Energy
  Physics
  Weapons Technology
  Energy Technology
  Inorganic Chemistry
  Energy and Resources
   
  

  Nuclear reaction

  In nuclear physics, a nuclear reaction is a process in which two nuclei or nuclear particles collide, to produce different products than the initial particles. In principle a reaction can involve ... > more

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