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  2. Reciprocal causation - Wikipedia

    en.wikipedia.org/wiki/Reciprocal_causation

    In these examples, the source of selection on a trait coevolves with the trait itself, therefore causation is reciprocal and developmental processes potentially become relevant to evolutionary accounts. For instance, a peacock’s tail evolves through mating preferences in peahens, and those preferences coevolve with the male trait.

  3. Wormhole - Wikipedia

    en.wikipedia.org/wiki/Wormhole

    An actual wormhole would be analogous to this, but with the spatial dimensions raised by one. For example, instead of circular holes on a 2-Dimensional plane, the entry and exit points could be visualized as spherical holes in 3D space leading into a four-dimensional "tube" similar to a spherinder. [citation needed]

  4. Non-orientable wormhole - Wikipedia

    en.wikipedia.org/wiki/Non-orientable_wormhole

    The existence of a traversable nonorientable wormhole would seem to allow the conversion of matter to antimatter, and vice versa. A universe that includes one of these "non-orientable" connections does not allow a global definition of whether a particle is "really" matter or antimatter, and this sort of universe, with no global definition of ...

  5. Ellis wormhole - Wikipedia

    en.wikipedia.org/wiki/Ellis_wormhole

    The wormhole metric has the proper-time form =, where = + = + (+) = + (+) [+ (⁡)] and is the drainhole parameter that survives after the parameter of the Ellis drainhole solution is set to 0 to stop the ether flow and thereby eliminate gravity.

  6. Category:Wormhole theory - Wikipedia

    en.wikipedia.org/wiki/Category:Wormhole_theory

    Pages in category "Wormhole theory" The following 11 pages are in this category, out of 11 total. This list may not reflect recent changes. * Wormhole; E.

  7. Ellis drainhole - Wikipedia

    en.wikipedia.org/wiki/Ellis_drainhole

    The Ellis drainhole is the earliest-known complete mathematical model of a traversable wormhole.It is a static, spherically symmetric solution of the Einstein vacuum field equations augmented by inclusion of a scalar field minimally coupled to the geometry of space-time with coupling polarity opposite to the orthodox polarity (negative instead of positive):

  8. Biological applications of bifurcation theory - Wikipedia

    en.wikipedia.org/wiki/Biological_applications_of...

    Example of a biological network between genes and proteins that controls entry into S phase. However, with knowledge of network interactions and a set of parameters for the proteins and protein interactions (usually obtained through empirical research), it is often possible to construct a model of the network as a dynamical system .

  9. Wormholes in fiction - Wikipedia

    en.wikipedia.org/wiki/Wormholes_in_fiction

    A wormhole is also used in this universe to put a probe into the sun (the wormhole is utilized to cool the probe, throwing out solar material fast enough to keep the probe at operating temperatures). In his book Ring , the Xeelee construct a gigantic wormhole into a different universe which they use to escape the onslaught of the Photino birds.