Battery Articles

• Nature of Water
  Wind Energy
  Sports Science
  Physics
  Quantum Physics
  Chemistry
   
  

  Turbulence

  In fluid dynamics, turbulence or turbulent flow is a flow regime characterized by chaotic, stochastic property changes. This includes low momentum diffusion, high momentum convection, and rapid ... > more
• Ultrasound
  Medical Imaging
  Medical Technology
  Pregnancy and Childbirth
  Sports Science
  Detectors
   
  

  Ultrasound

  Ultrasound is sound with a frequency greater than the upper limit of human hearing, approximately 20 kilohertz (20,000 hertz). Some animals, such as dogs, dolphins, bats, and mice have an upper limit ... > 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
• Hurricanes and Cyclones
  Construction
  Severe Weather
  Sports Science
  Civil Engineering
  Tornadoes
   
  

  Hurricane proof building

  Tornadoes, cyclones, and other strong winds damage or destroy many buildings. Here are some architectural design ... > more
• Sports Science
  Mathematics
  Albert Einstein
  Computer Graphics
  Math Puzzles
  Mathematical Modeling
   
  

  Knot theory

  Knot theory is the mathematical branch of topology that studies mathematical knots, which are defined as embeddings of a circle in 3-dimensional Euclidean space, R3. This is basically equivalent to a ... > more
• Cosmic Rays
  Black Holes
  Space Telescopes
  Medical Technology
  Physics
  Optics
   
  

  Gamma ray

  Gamma rays are an energetic form of electromagnetic radiation produced by radioactive decay or other nuclear or subatomic processes such as electron-positron annihilation. Gamma rays form the ... > more
• Ancient Civilizations
  Weapons Technology
  Sports Science
  Archaeology
  Anthropology
  Aviation
   
  

  Catapult

  Catapults are siege engines using an arm to hurl a projectile a great distance. Any machine that hurls an object can be considered a catapult, but the term is generally understood to mean medieval ... > more
• Civil Engineering
  Engineering
  Materials Science
  Energy Technology
  Technology
  Electronics
   

  Metallurgy

  Metallurgy is a domain of materials science and of materials engineering that studies the physical and chemical behavior of metallic elements and their mixtures, which are called ... > 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
• Quantum Physics
  Physics
  Cosmic Rays
  Detectors
  Astrophysics
  Black Holes
   
  

  Neutrino

  The neutrino is an elementary particle. It has half-integer spin and is therefore a fermion. All neutrinos observed to date have left-handed chirality. Although they had been considered massless for ... > more

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