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  2. Electron excitation - Wikipedia

    en.wikipedia.org/wiki/Electron_excitation

    Within a semiconductor crystal lattice, thermal excitation is a process where lattice vibrations provide enough energy to transfer electrons to a higher energy band such as a more energetic sublevel or energy level. [3] When an excited electron falls back to a state of lower energy, it undergoes electron relaxation (deexcitation [4]).

  3. Gamma-ray burst - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_burst

    This combination of brightness and distance implies an extremely energetic source. Assuming the gamma-ray explosion to be spherical, the energy output of GRB 080319B would be within a factor of two of the rest-mass energy of the Sun (the energy which would be released were the Sun to be converted entirely into radiation). [47]

  4. Orders of magnitude (energy) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(energy)

    Energy released by annihilation of 1 gram of antimatter and matter (50 GW·h) 3.75×10 14 J: Total energy released by the Chelyabinsk meteor. [178] 6×10 14 J: Energy released by an average hurricane per day [179] 10 15: peta-(PJ) > 10 15 J: Energy released by a severe thunderstorm [180] 1×10 15 J: Yearly electricity consumption in Greenland ...

  5. Diffusion (acoustics) - Wikipedia

    en.wikipedia.org/wiki/Diffusion_(acoustics)

    Diffusion, in architectural acoustics, is the spreading of sound energy evenly in a given environment. A perfectly diffusive sound space is one in which the reverberation time is the same at any listening position. Most interior spaces are non-diffusive; the reverberation time is considerably different around the room.

  6. QSound - Wikipedia

    en.wikipedia.org/wiki/QSound

    QSound is essentially a filtering algorithm. It manipulates timing, amplitude, and frequency response to produce a binaural image.Systems like QSound rely on the fact that a sound arriving from one side of the listener will reach one ear before the other and that when it reaches the furthest ear, it is lower in amplitude and spectrally altered due to obstruction by the head.

  7. People Are Sharing “Cheat Codes” For Life That ... - AOL

    www.aol.com/people-sharing-cheat-codes-life...

    Start strength training at an early age (this applies to women as well), use sunscreen and try to eat relatively healthy. Develop discipline; discipline is the compass that guides you through life ...

  8. Outline of energy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_energy

    Kilowatt-hour (kW·h) – corresponds to one kilowatt of power being used over a period of one hour (3.6 MJ). Calorie (cal) – equal to the energy need to raise the temperature of one gram of water by one degree Celsius (~4.184 J). Erg (erg) – unit of energy and mechanical work in the centimetre-gram-second (CGS) system of units (10 −7 J).

  9. Foe (unit) - Wikipedia

    en.wikipedia.org/wiki/Foe_(unit)

    A foe is a unit of energy equal to 10 44 joules or 10 51 ergs, used to express the large amount of energy released by a supernova. [1] An acronym for "[ten to the power of] fifty-one ergs", [2] the term was introduced by Gerald E. Brown of Stony Brook University in his work with Hans Bethe, because "it came up often enough in our work".

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