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  2. Wave height - Wikipedia

    en.wikipedia.org/wiki/Wave_height

    Depending on context, wave height may be defined in different ways: For a sine wave, the wave height H is twice the amplitude (i.e., the peak-to-peak amplitude): [1] =.; For a periodic wave, it is simply the difference between the maximum and minimum of the surface elevation z = η(x – c p t): [1] = {()} {()}, with c p the phase speed (or propagation speed) of the wave.

  3. Ancient Egyptian units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Egyptian_units_of...

    Egyptian units of length are attested from the Early Dynastic Period.Although it dates to the 5th dynasty, the Palermo stone recorded the level of the Nile River during the reign of the Early Dynastic pharaoh Djer, when the height of the Nile was recorded as 6 cubits and 1 palm [1] (about 3.217 m or 10 ft 6.7 in).

  4. Fukushima nuclear accident (Unit 1 Reactor) - Wikipedia

    en.wikipedia.org/wiki/Fukushima_nuclear_accident...

    The utility said that fuel rods of the No. 1 reactor are fully exposed, with the water level 1 meter (3.3 feet) below the base of the fuel assembly. According to a Japanese press report, there are holes in the base of the pressure vessel – these holes were meant for the control-rods.

  5. Sea state - Wikipedia

    en.wikipedia.org/wiki/Sea_state

    A ship designer can find the most extreme sea states (extreme values of H 1/3 and T 1) from the joint frequency table, and from the wave spectrum, the designer can find the most likely highest wave elevation in the most extreme sea states and predict the most likely highest loads on individual parts of the ship from the response amplitude ...

  6. Rogue wave - Wikipedia

    en.wikipedia.org/wiki/Rogue_wave

    The wave was recorded in 1995 at Unit E of the Draupner platform, a gas pipeline support complex located in the North Sea about 160 km (100 miles) southwest from the southern tip of Norway. [29] [a] At 15:24 UTC on 1 January 1995, the device recorded a rogue wave with a maximum wave height of 25.6 m (84 ft).

  7. Significant wave height - Wikipedia

    en.wikipedia.org/wiki/Significant_wave_height

    Significant wave height H 1/3, or H s or H sig, as determined in the time domain, directly from the time series of the surface elevation, is defined as the average height of that one-third of the N measured waves having the greatest heights: [5] / = = where H m represents the individual wave heights, sorted into descending order of height as m increases from 1 to N.

  8. Height - Wikipedia

    en.wikipedia.org/wiki/Height

    Height is normal to the plane formed by the length and width. Height is also used as a name for some more abstract definitions. These include: The height or altitude of a triangle, which is the length from a vertex of a triangle to the line formed by the opposite side; The height of a pyramid, which is the smallest distance from the apex to the ...

  9. 1958 Lituya Bay earthquake and megatsunami - Wikipedia

    en.wikipedia.org/wiki/1958_Lituya_Bay_earthquake...

    Near the crest of the Fairweather Mountains sit the Lituya and the North Crillon glaciers. They are each about 12 miles (19 km) long and 1 mile (1.6 km) wide with an elevation of 4,000 feet (1,200 m). The retreats of these glaciers form the present "T" shape of the bay, the Gilbert and Crillon inlets. [10]