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• Organic Chemistry
  Graphene
  Electronics
  Nanotechnology
  Chemistry
  Fossil Fuels
   
  

  Carbon-14

  Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon discovered on February 27, 1940, by Martin Kamen and Sam Ruben. Its nucleus contains 6 protons and 8 neutrons. Its presence in ... > more
• Nanotechnology
  Physics
  Materials Science
  Engineering
  Sports Science
  Technology
   
  

  Nanotechnology

  Nanotechnology refers broadly to a field of applied science and technology whose unifying theme is the control of matter on the molecular level in scales smaller than 1 micrometre, normally 1 to 100 ... > more
• Chemistry
  Sports Science
  Inorganic Chemistry
  Weapons Technology
  Nature of Water
  Nuclear Energy
   
  

  Xenon

  Xenon is a chemical element in the periodic table that has the symbol Xe and atomic number 54. A colorless, very heavy, odorless noble gas, xenon occurs in the earth's atmosphere in trace amounts and ... > more
• Petroleum
  Fossil Fuels
  Energy and the Environment
  Rainforests
  Air Quality
  Chemistry
   
  

  Natural gas

  Natural gas, commonly referred to as gas, is a gaseous fossil fuel consisting primarily of methane. It is found in oil fields and natural gas fields, as well as—in smaller quantities—in ... > more
• Biochemistry
  Sports Science
  Organic Chemistry
  Physics
  Detectors
  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
• 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
• Chemistry
  Inorganic Chemistry
  Organic Chemistry
  Spintronics
  Graphene
  Weapons Technology
   

  Halogen

  The halogens are a chemical series. They are the elements in Group 17 (old-style: VII or VIIA) of the periodic table: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and the as ... > more
• Petroleum
  Fossil Fuels
  Sports Science
  Energy Policy
  Alternative Fuels
  Nature of Water
   
  

  Oil refinery

  An oil refinery is an industrial process plant where crude oil is processed and refined into useful petroleum products. Raw oil or unprocessed ("crude") oil is not very useful in the form it comes in ... > more
• Astrophysics
  Optics
  Physics
  Chemistry
  Sports Science
  Graphene
   
  

  Spectroscopy

  Spectroscopy is the study of spectra, that is, the dependence of physical quantities on frequency. Spectroscopy is often used in physical and analytical chemistry for the identification of ... > more
• Graphene
  Sports Science
  Materials Science
  Biochemistry
  Chemistry
  Physics
   
  

  Crystal structure

  In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; ... > more

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