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  2. Impenetrability - Wikipedia

    en.wikipedia.org/wiki/Impenetrability

    In metaphysics, impenetrability is the name given to that quality of matter whereby two bodies cannot occupy the same space at the same time. The philosopher John Toland argued that impenetrability and extension were sufficient to define matter, a contention strongly disputed by Gottfried Wilhelm von Leibniz .

  3. Matter - Wikipedia

    en.wikipedia.org/wiki/Matter

    In physics, degenerate matter ... and the disappearance of antimatter requires an asymmetry in physical laws called CP ... impenetrability, mobility, and inertia ...

  4. Hypotheses non fingo - Wikipedia

    en.wikipedia.org/wiki/Hypotheses_non_fingo

    In the history of physics, hypotheses non fingo (Latin for "I frame no hypotheses", or "I contrive no hypotheses") is a phrase used by Isaac Newton in the essay General Scholium, which was appended to the second edition of Philosophiae Naturalis Principia Mathematica in 1713.

  5. Postulates of special relativity - Wikipedia

    en.wikipedia.org/wiki/Postulates_of_special...

    1. First postulate (principle of relativity) The laws of physics take the same form in all inertial frames of reference.. 2. Second postulate (invariance of c) . As measured in any inertial frame of reference, light is always propagated in empty space with a definite velocity c that is independent of the state of motion of the emitting body.

  6. Impedance of free space - Wikipedia

    en.wikipedia.org/wiki/Impedance_of_free_space

    The analogous quantity for a plane wave travelling through a dielectric medium is called the intrinsic impedance of the medium and designated η ().Hence Z 0 is sometimes referred to as the intrinsic impedance of free space, [2] and given the symbol η 0. [3]

  7. Scientific law - Wikipedia

    en.wikipedia.org/wiki/Scientific_law

    Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. [1] The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science (physics, chemistry, astronomy, geoscience, biology).

  8. Newton's laws of motion - Wikipedia

    en.wikipedia.org/wiki/Newton's_laws_of_motion

    Newton's laws of motion are three physical laws that describe the relationship between the motion of an object and the forces acting on it. These laws, which provide the basis for Newtonian mechanics, can be paraphrased as follows: A body remains at rest, or in motion at a constant speed in a straight line, except insofar as it is acted upon by ...

  9. No-cloning theorem - Wikipedia

    en.wikipedia.org/wiki/No-cloning_theorem

    According to Asher Peres [4] and David Kaiser, [5] the publication of the 1982 proof of the no-cloning theorem by Wootters and Zurek [2] and by Dieks [3] was prompted by a proposal of Nick Herbert [6] for a superluminal communication device using quantum entanglement, and Giancarlo Ghirardi [7] had proven the theorem 18 months prior to the published proof by Wootters and Zurek in his referee ...