Nouns denoting natural phenomena
- mist
- a thin fog with condensation near the ground
- radio-frequency spectrum
- the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television
- tailwind
- wind blowing in the same direction as the path of a ship or aircraft
- nuclear energy
- the energy released by a nuclear reaction
- affinity
- the force attracting atoms to each other and binding them together in a molecule
- brain death
- death when respiration and other reflexes are absent; consciousness is gone; organs can be removed for transplantation before the heartbeat stops
- acoustic impedance
- opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component
- solar wind
- a stream of protons moving radially from the sun
- polymorphism
- (chemistry) the existence of different kinds of crystal of the same chemical compound
- fata morgana
- a mirage in the Strait of Messina (attributed to the Arthurian sorcerer Morgan le Fay)
- pea-souper
- a heavy thick yellow fog
- diffraction
- when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands
- squall line
- a cold front along which squalls or thunderstorms are likely
- color force
- (physics) the interaction that binds protons and neutrons together in the nuclei of atoms; mediated by gluons
- solar prominence
- large eruptions of luminous hydrogen gas that rise thousands of kilometers above the chromosphere
- X-ray diffraction
- the scattering of X rays by the atoms of a crystal; the diffraction pattern shows structure of the crystal
- beta ray
- radiation of beta particles during radioactive decay
- flashover
- an unintended electric discharge (as over or around an insulator)
- ice fog
- a dense winter fog containing ice particles
- samiel
- a violent hot sand-laden wind on the deserts of Arabia and North Africa
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