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  2. Froebel gifts - Wikipedia

    en.wikipedia.org/wiki/Froebel_gifts

    The Froebel gifts (German: Fröbelgaben) are educational play materials for young children, originally designed by Friedrich Fröbel for the first kindergarten at Bad Blankenburg. Playing with Froebel gifts, singing, dancing, and growing plants were each important aspects of this child-centered approach to education.

  3. Ripple effect - Wikipedia

    en.wikipedia.org/wiki/Ripple_effect

    A diagram of the Ripple effect illustrating how the "Weinstein Scandal" led all the way to the rise of the Me Too movement.A ripple effect occurs when an initial disturbance to a system propagates outward to disturb an increasingly larger portion of the system, like ripples expanding across the water when an object is dropped into it.

  4. 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.

  5. Ripple - Wikipedia

    en.wikipedia.org/wiki/Ripple

    Ripple marks, as identified in sediments and sedimentary rocks; Ripple (payment protocol), a real-time payment system by Ripple Labs; Ripple control, a form of electrical load management; Various brainwave patterns, including those which follow sharp waves in the hippocampus; Ripple I and Ripple II, 1962 US nuclear bomb tests in Operation Dominic

  6. Patterns in nature - Wikipedia

    en.wikipedia.org/wiki/Patterns_in_nature

    For example, when leaves alternate up a stem, one rotation of the spiral touches two leaves, so the pattern or ratio is 1/2. In hazel the ratio is 1/3; in apricot it is 2/5; in pear it is 3/8; in almond it is 5/13. [56] Animal behaviour can yield spirals; for example, acorn worms leave spiral fecal trails on the sea floor. [57]

  7. My daughter repeated kindergarten because she couldn't read ...

    www.aol.com/daughter-repeated-kindergarten...

    Susie Coughlin was concerned when her daughter struggled with reading skills at her public school.. The mom of two was disappointed her district didn't teach phonics as part of its literacy program.

  8. Capillary wave - Wikipedia

    en.wikipedia.org/wiki/Capillary_wave

    Capillary waves (ripples) in water Ripples on Lifjord in Øksnes Municipality, Norway Capillary waves produced by droplet impacts on the interface between water and air.. A capillary wave is a wave traveling along the phase boundary of a fluid, whose dynamics and phase velocity are dominated by the effects of surface tension.

  9. Ripple marks - Wikipedia

    en.wikipedia.org/wiki/Ripple_marks

    Like the sinuous ripples, this form of ripple is created by unidirectional flow with the dip at an angle to the flow as well as downstream. Linguoid / Lunate Linguoid ripples have lee slope surfaces that are curved generating a laminae similar to caternary and sinuous ripples. Linguoid ripples generate an angle to the flow as well as downstream.

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