Optics Articles

• Energy Technology
  Nuclear Energy
  Physics
  Energy and Resources
  Petroleum
  Solar Energy
   
  

  Energy

  In general, the word energy refers to a concept that can be paraphrased as "the potential for causing changes", and therefore one can say that energy is the cause of any change. The most common ... > more
• Energy and the Environment
  Solar Energy
  Renewable Energy
  Geomagnetic Storms
  Environmental Science
  Energy and Resources
   
  

  Solar cell

  A solar cell (or a "photovoltaic" cell) is a device that converts photons from the sun (solar light) into electricity. In general, a solar cell that includes both solar and nonsolar sources of light ... > more
• Medical Technology
  Medical Devices
  Medical Imaging
  Nuclear Energy
  Brain Tumor
  Weapons Technology
   
  

  Positron emission tomography

  Positron emission tomography (PET) is a nuclear medicine medical imaging technique which produces a three dimensional image or map of functional processes in the body. PET is both a medical and ... > more
• Biochemistry
  Sports Science
  Organic Chemistry
  Detectors
  Physics
  Aviation
   
  

  Mass spectrometry

  Mass spectrometry is an analytical technique used to measure the mass-to-charge ratio of ions. It is most generally used to find the composition of a physical sample by generating a mass spectrum ... > more
• Electronics
  Technology
  Telecommunications
  Spintronics
  Sports Science
  Sports Medicine
   
  

  Integrated circuit

  A monolithic integrated circuit (IC) or often referred to as a microchip or simply chip is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive ... > more
• Spintronics
  Physics
  Graphene
  Materials Science
  Energy Technology
  Electricity
   
  

  Semiconductor

  A semiconductor is a material with an electrical conductivity that is intermediate between that of an insulator and a conductor. A semiconductor behaves as an insulator at very low temperature, and ... > more
• Electronics
  Graphene
  Spintronics
  Spintronics Research
  Nanotechnology
  Sports Science
   
  

  Silicon

  Silicon is the chemical element in the periodic table that has the symbol Si and atomic number 14. A tetravalent metalloid, silicon is less reactive than its chemical analog carbon. It is the second ... > more
• Stars
  Astrophysics
  Astronomy
  Sun
  Extrasolar Planets
  Sports Science
   
  

  Luminosity

  In general physics, luminosity (more properly called luminance) is the density of luminous intensity in a given ... > more
• Sports Science
  Physics
  Medical Technology
  Acoustics
  Textiles and Clothing
  Optics
   
  

  Hertz

  The hertz (symbol: Hz) is the SI unit of frequency. One hertz simply means "one per second" (1 / s); 100 Hz means "one hundred per second", and so ... > 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

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