enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Negative energy - Wikipedia

    en.wikipedia.org/wiki/Negative_energy

    The negative-energy particle then crosses the event horizon into the black hole, with the law of conservation of energy requiring that an equal amount of positive energy should escape. In the Penrose process , a body divides in two, with one half gaining negative energy and falling in, while the other half gains an equal amount of positive ...

  3. Dirac sea - Wikipedia

    en.wikipedia.org/wiki/Dirac_sea

    It still lowers the energy of the vacuum, but in this point of view it does so by creating a negative energy object. This reinterpretation only affects the philosophy. To reproduce the rules for when annihilation in the vacuum gives zero, the notion of "empty" and "filled" must be reversed for the negative energy states.

  4. Wikipedia:Negative energy - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Negative_energy

    Articles on controversial subjects seem to generate a sort of negative energy which leads to quarrels, hurt feelings, and even lasting enmities. Here are some options for avoiding all this. Give it a rest: You don't need all this negative energy. Go apply yourself to some other article which is less of a pain.

  5. Dirac hole theory - Wikipedia

    en.wikipedia.org/wiki/Dirac_hole_theory

    Dirac hole theory is a theory in quantum mechanics, named after English theoretical physicist Paul Dirac, who introduced it in 1929. [1] The theory poses that the continuum of negative energy states, that are solutions to the Dirac equation, are filled with electrons, and the vacancies in this continuum (holes) are manifested as positrons with energy and momentum that are the negative of those ...

  6. Zero-energy universe - Wikipedia

    en.wikipedia.org/wiki/Zero-energy_universe

    Gravitational energy from visible matter accounts for 26–37% of the observed total mass–energy density. [15] Therefore, to fit the concept of a "zero-energy universe" to the observed universe, other negative energy reservoirs besides gravity from baryonic matter are necessary. These reservoirs are frequently assumed to be dark matter. [16]

  7. Apotropaic magic - Wikipedia

    en.wikipedia.org/wiki/Apotropaic_magic

    Similarly, the Chinese Bagua mirror is usually installed to ward off negative energy and protect the entryways of residences. [citation needed] An example of the use of shiny apotropaic objects in Judaism can be found in the so-called "Halsgezeige" or textile neckbands used in the birthing customs of the Franco-German border region.

  8. AOL Mail

    mail.aol.com/m

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Activation energy - Wikipedia

    en.wikipedia.org/wiki/Activation_energy

    The activation energy (E a) of a reaction is measured in kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol). [2] Activation energy can be thought of as the magnitude of the potential barrier (sometimes called the energy barrier) separating minima of the potential energy surface pertaining to the initial and final thermodynamic ...