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  2. The Black Dog of Newgate - Wikipedia

    en.wikipedia.org/wiki/The_Black_Dog_of_Newgate

    This account of a haunting based at the prison is an example of the English Black Dog category of supernatural manifestations, featuring a spectral hound of ill-omen or malicious intent, which is a notable archetype in British folklore and superstition.

  3. Action potential - Wikipedia

    en.wikipedia.org/wiki/Action_potential

    An action potential (also known as a nerve impulse or "spike" when in a neuron) is a series of quick changes in voltage across a cell membrane. An action potential occurs when the membrane potential of a specific cell rapidly rises and falls. [1] This depolarization then causes adjacent locations to similarly depolarize.

  4. Compound action potential - Wikipedia

    en.wikipedia.org/wiki/Compound_action_potential

    Alike individual action potentials, CAP waveforms are typically biphasic presenting a negative and positive peak. The morphological attributes of the CAP (amplitude, spread, latency) depend on various factors including electrode placement, stimulus intensity, number of fibers recruited, the synchronization of action potentials, and conduction ...

  5. Black dog (folklore) - Wikipedia

    en.wikipedia.org/wiki/Black_dog_(folklore)

    The Yeth Hound (or Yell Hound) is a black dog found in Devon folklore. According to Brewer's Dictionary of Phrase and Fable , the Yeth Hound is a headless dog, said to be the spirit of an unbaptised child, that rambles through the woods at night making wailing noises.

  6. Is Seeing a Spider a Good Omen? What To Know About the ... - AOL

    www.aol.com/seeing-spider-good-omen-know...

    Popescu indicates that a spider crossing your path can be an auspicious omen, explaining: "Broadly, due to their widespread connection to destiny, you are receiving the message that you are on ...

  7. Neural backpropagation - Wikipedia

    en.wikipedia.org/wiki/Neural_backpropagation

    Neural backpropagation is the phenomenon in which, after the action potential of a neuron creates a voltage spike down the axon (normal propagation), another impulse is generated from the soma and propagates towards the apical portions of the dendritic arbor or dendrites (from which much of the original input current originated).

  8. If You See a Hawk, Here's the True, Unexpected Significance ...

    www.aol.com/lifestyle/see-hawk-heres-true...

    Here's why a hawk might fly into your life (and if that's a good thing).

  9. De mortuis nil nisi bonum - Wikipedia

    en.wikipedia.org/wiki/De_mortuis_nil_nisi_bonum

    The full Latin sentence is usually abbreviated into the phrase (De) Mortuis nihil nisi bonum, "Of the dead, [say] nothing but good."; whereas free translations from the Latin function as the English aphorisms: "Speak no ill of the dead," "Of the dead, speak no evil," and "Do not speak ill of the dead."