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  2. U.S. Army Corps of Engineers Bay Model - Wikipedia

    en.wikipedia.org/wiki/U.S._Army_Corps_of...

    The scale of the model is 1:1000 on the horizontal axis and 1:100 on the vertical axis. The model operates at a time scale of 1:100. [6] The model is distorted by a factor of ten between the horizontal and vertical scales. The distortion is designed into the model to ensure a proper hydraulic flow over the tidal flats and shallows.

  3. Water pouring puzzle - Wikipedia

    en.wikipedia.org/wiki/Water_pouring_puzzle

    As shown in the previous section, we can construct the solution to the problem from the desired result by using reversible actions only (emptying a full jug into the sink and filling an empty jug from the tap are both reversible). To obtain 4 liters using 3-liter and 5-liter jugs, we want to reach the point (4, 0).

  4. List of quantum-mechanical systems with analytical solutions

    en.wikipedia.org/wiki/List_of_quantum-mechanical...

    which is an eigenvalue equation. Very often, only numerical solutions to the Schrödinger equation can be found for a given physical system and its associated potential energy. However, there exists a subset of physical systems for which the form of the eigenfunctions and their associated energies, or eigenvalues, can be found.

  5. Mathematical formulation of the Standard Model - Wikipedia

    en.wikipedia.org/wiki/Mathematical_formulation...

    Standard Model of Particle Physics. The diagram shows the elementary particles of the Standard Model (the Higgs boson, the three generations of quarks and leptons, and the gauge bosons), including their names, masses, spins, charges, chiralities, and interactions with the strong, weak and electromagnetic forces.

  6. Category:Models from California - Wikipedia

    en.wikipedia.org/.../Category:Models_from_California

    Pages in category "Models from California" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. L. Carol LaBrie;

  7. Quark model - Wikipedia

    en.wikipedia.org/wiki/Quark_model

    All quarks are assigned a baryon number of ⁠ 1 / 3 ⁠. Up, charm and top quarks have an electric charge of + ⁠ 2 / 3 ⁠, while the down, strange, and bottom quarks have an electric charge of − ⁠ 1 / 3 ⁠. Antiquarks have the opposite quantum numbers. Quarks are spin-⁠ 1 / 2 ⁠ particles, and thus fermions. Each quark or antiquark ...

  8. Thomson problem - Wikipedia

    en.wikipedia.org/wiki/Thomson_problem

    geodesic sphere {3,5+} 3,2: 193 17144.564740880 0.000985192 0 0 12 181 0 0 573 382 0 14.144° 194 17326.616136471 0.000322358 0 0 12 182 0 0 576 384 0 14.350° 195 17509.489303930 0 0 0 12 183 0 0 579 386 0 14.375° 196 17693.460548082 0.000315907 0 0 12 184 0

  9. List of unsolved problems in physics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    The following is a list of notable unsolved problems grouped into broad areas of physics. [1]Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.