Matter & Energy Articles

• Acoustics
  Physics
  Sports Science
  Quantum Physics
  Engineering
  Albert Einstein
   
  

  Acoustics

  Acoustics is the branch of physics concerned with the study of sound (mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics is an acoustician. The ... > more
• Osteoporosis
  Women's Health
  Food Additives
  Dietary Supplement
  Vitamin
  Nutrition
   
  

  Calcium

  Calcium is a chemical element in the periodic table that has the symbol Ca and atomic number 20. Calcium is a soft grey alkaline earth metal that is used as a reducing agent in the extraction of ... > more
• Nuclear Energy
  Weapons Technology
  Energy and the Environment
  Renewable Energy
  Sports Science
  Physics
   
  

  Plutonium

  Plutonium is a radioactive, metallic, chemical element. It has the symbol Pu and the atomic number 94. It is the element used in most modern nuclear weapons. The most important, albeit not most ... > more
• Physics
  Quantum Physics
  Graphene
  Spintronics
  Alternative Fuels
  Sports Science
   
  

  Hydrogen-like atom

  Hydrogen-like atoms (or hydrogenic atoms) are atoms with one single electron. Like the hydrogen atom, hydrogen-like atoms are one of the few quantum mechanical problems which can be exactly ... > more
• Sports Science
  Chemistry
  Inorganic Chemistry
  Weapons Technology
  Physics
  Batteries
   
  

  Beryllium

  Beryllium is the chemical element in the periodic table that has the symbol Be and atomic number 4. A toxic bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline ... > more
• Nutrition
  Diet and Weight Loss
  Attention Deficit Disorder
  Healthy Aging
  Obesity
  Sports Science
   
  

  Calorie

  A calorie is an unit of measurement for energy. The calorie was never a metric or SI unit. In most fields, it has been replaced by the joule, the SI unit of energy. It remains, however, in common ... > 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
• 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
• Construction
  Sports Science
  Computer Science
  Technology
  Computer Programming
  Information Technology
   
  

  Xanadu House

  The Xanadu Houses were a series of experimental homes, built to showcase examples of computers and automation in the home in the United ... > more
• Nature of Water
  Thermodynamics
  Materials Science
  Sports Science
  Civil Engineering
  Nuclear Energy
   

  Hygroscopy

  A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption. Examples include honey, glycerin, ethanol, methanol, concentrated sulfuric ... > more

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