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  2. Ripple marks - Wikipedia

    en.wikipedia.org/wiki/Ripple_marks

    Current ripple marks, unidirectional ripples, or asymmetrical ripple marks are asymmetrical in profile, with a gentle up-current slope and a steeper down-current slope. The down-current slope is the angle of repose, which depends on the shape of the sediment.

  3. Wave-formed ripple - Wikipedia

    en.wikipedia.org/wiki/Wave-formed_ripple

    Symmetrical ripple. Although symmetrical ripples are also called bi-directional ripples there is a difference between them. Bi-directional ripples are rarely symmetrical due to the difference in force of the two directions, where as the wave formed or oscillation ripples form from the circular water movement pattern of water molecules.

  4. Ripple (electrical) - Wikipedia

    en.wikipedia.org/wiki/Ripple_(electrical)

    Ripple (specifically ripple voltage) in electronics is the residual periodic variation of the DC voltage within a power supply which has been derived from an alternating current (AC) source. This ripple is due to incomplete suppression of the alternating waveform after rectification. Ripple voltage originates as the output of a rectifier or ...

  5. Sedimentary structures - Wikipedia

    en.wikipedia.org/wiki/Sedimentary_structures

    Asymmetrical ripple marks These are created by a one way current, for example in a river, or the wind in a desert. This creates ripple marks with still pointed crests and rounded troughs, but which are inclined more strongly in the direction of the current. For this reason, they can be used as palaeocurrent indicators.

  6. Ripple tank - Wikipedia

    en.wikipedia.org/wiki/Ripple_tank

    In physics, a ripple tank is a shallow glass tank of water used to demonstrate the basic properties of waves. It is a specialized form of a wave tank. The ripple tank is usually illuminated from above, so that the light shines through the water. Some small ripple tanks fit onto the top of an overhead projector, i.e

  7. Ringing artifacts - Wikipedia

    en.wikipedia.org/wiki/Ringing_artifacts

    The central example, and often what is meant by "ringing artifacts", is the ideal low-pass filter, the sinc filter. This has an oscillatory impulse response function, as illustrated above, and the step response – its integral, the sine integral – thus also features oscillations, as illustrated at right.

  8. List of electrical phenomena - Wikipedia

    en.wikipedia.org/wiki/List_of_electrical_phenomena

    Some examples are: Atmospheric electricity; Biefeld–Brown effect — Thought by the person who coined the name, Thomas Townsend Brown, to be an anti-gravity effect, it is generally attributed to electrohydrodynamics (EHD) or sometimes electro-fluid-dynamics, a counterpart to the well-known magneto-hydrodynamics.

  9. Mechanical wave - Wikipedia

    en.wikipedia.org/wiki/Mechanical_wave

    Ripple in water is a surface wave. In physics , a mechanical wave is a wave that is an oscillation of matter , and therefore transfers energy through a material medium . [ 1 ] ( Vacuum is, from classical perspective, a non-material medium, where electromagnetic waves propagate.)