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  2. Triskelion - Wikipedia

    en.wikipedia.org/wiki/Triskelion

    5,000 year-old triskelion on an orthostat at Newgrange. The triple spiral symbol, or three-spiral volute, appears in many early cultures: the first appeared in Malta (4400–3600 BCE); the second in the astronomical calendar of the megalithic tomb of Newgrange in Ireland built around 3200 BCE; [13] as well as on Mycenaean vessels.

  3. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    Symbol Name Meaning SI unit of measure alpha: alpha particle: angular acceleration: radian per second squared (rad/s 2) fine-structure constant: unitless beta: velocity in terms of the speed of light c: unitless beta particle: gamma: Lorentz factor: unitless photon: gamma ray: shear strain: radian

  4. Volute - Wikipedia

    en.wikipedia.org/wiki/Volute

    A volute is a spiral, scroll-like ornament that forms the basis of the Ionic order, found in the capital of the Ionic column. It was later incorporated into ...

  5. List of spirals - Wikipedia

    en.wikipedia.org/wiki/List_of_spirals

    For <, spiral-ring pattern; =, regular spiral; >, loose spiral. R is the distance of spiral starting point (0, R) to the center. R is the distance of spiral starting point (0, R) to the center. The calculated x and y have to be rotated backward by ( − θ {\displaystyle -\theta } ) for plotting.

  6. Spiral - Wikipedia

    en.wikipedia.org/wiki/Spiral

    The Celtic triple-spiral is in fact a pre-Celtic symbol. [15] It is carved into the rock of a stone lozenge near the main entrance of the prehistoric Newgrange monument in County Meath , Ireland . Newgrange was built around 3200 BCE, predating the Celts; triple spirals were carved at least 2,500 years before the Celts reached Ireland, but have ...

  7. Lists of physics equations - Wikipedia

    en.wikipedia.org/wiki/Lists_of_physics_equations

    In physics, there are equations in every field to relate physical quantities to each other and perform calculations. Entire handbooks of equations can only summarize most of the full subject, else are highly specialized within a certain field. Physics is derived of formulae only.

  8. Archimedean spiral - Wikipedia

    en.wikipedia.org/wiki/Archimedean_spiral

    The Archimedean spiral (also known as Archimedes' spiral, the arithmetic spiral) is a spiral named after the 3rd-century BC Greek mathematician Archimedes. The term Archimedean spiral is sometimes used to refer to the more general class of spirals of this type (see below), in contrast to Archimedes' spiral (the specific arithmetic spiral of ...

  9. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Symbol Description SI derived unit Dimension Comments Absorbed dose rate: D: Absorbed dose received per unit of time Gy/s L 2 T −3: Action: S: Momentum of particle multiplied by distance travelled J/Hz L 2 M T −1: scalar Angular acceleration: ω a: Change in angular velocity per unit time rad/s 2: T −2: Area: A: Extent of a surface m 2: L ...