Matter & Energy Articles

• Sports Science
  Technology
  Detectors
  Construction
  Biometric
  Wind Energy
   
  

  Newton's cradle

  Newton's cradle or Newton's balls, named after Sir Isaac Newton is a device that demonstrates conservation of momentum and energy. It is constructed from a series of pendulums (usually five in ... > more
• Healthy Aging
  Attention Deficit Disorder
  Hazardous Waste
  Sports Science
  Chemistry
  Sports Medicine
   
  

  Polychlorinated biphenyl

  Polychlorinated biphenyls (PCBs) are a class of organic compounds with 1 to 10 chlorine atoms attached to biphenyl. Although the physical and chemical properties vary widely across the class, PCBs ... > more
• Early Climate
  Ice Ages
  Climate
  Global Warming
  Nature of Water
  Snow and Avalanches
   
  

  Ice core

  An ice core is a core sample from the accumulation of snow and ice over many years that have recrystallized and have trapped air bubbles from previous time periods. The composition of these ice ... > more
• Healthy Aging
  Organic Chemistry
  Attention Deficit Disorder
  Sports Science
  Chemistry
  Inorganic Chemistry
   
  

  Formaldehyde

  The chemical compound formaldehyde (also known as methanal), is a gas with a strong pungent smell. Formaldehyde readily results from the incomplete combustion of carbon-containing materials. It may ... > more
• Aviation
  Vehicles
  Sports Science
  Wind Energy
  Construction
  Weapons Technology
   
  

  Helicopter

  A helicopter is an aircraft which is lifted and propelled by one or more horizontal rotors (propellers). Helicopters are classified as rotary-wing aircraft to distinguish them from conventional ... > more
• Hurricanes and Cyclones
  Floods
  Severe Weather
  Construction
  Sports Science
  Civil Engineering
   
  

  Levee failures in Greater New Orleans, 2005

  In 2005, as a result of Hurricane Katrina, there were extensive failures of the levees and flood walls protecting New Orleans, Louisiana and surrounding communities. There were also extensive ... > more
• Quantum Physics
  Physics
  Quantum Computing
  Black Holes
  Spintronics
  Sports Science
   
  

  Schrodinger's cat

  Schrödinger's cat is a seemingly paradoxical thought experiment devised by Erwin Schrödinger that attempts to illustrate the incompleteness of an early interpretation of quantum mechanics ... > more
• Healthy Aging
  Dietary Supplement
  Attention Deficit Disorder
  Sports Medicine
  Sports Science
  Chemistry
   
  

  Cadmium

  Cadmium is a chemical element in the periodic table that has the symbol Cd and atomic number 48. A relatively rare, soft, bluish-white, toxic transition metal, cadmium occurs with zinc ores and is ... > more
• Spintronics
  Graphene
  Materials Science
  Chemistry
  Physics
  Sports Science
   
  

  Germanium

  Germanium is a chemical element in the periodic table that has the symbol Ge and atomic number 32. This is a lustrous, hard, silver-white, metalloid that is chemically similar to tin. Germanium forms ... > more
• Sports Science
  Transportation Science
  Vehicles
  Nature of Water
  Thermodynamics
  Chemistry
   
  

  Tire

  A tire or tyre is a device covering the circumference of a wheel. It is an essential part of most ground vehicles and is used to dampen the oscillations caused by irregularities in the road surface, ... > more

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