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  2. Hawaiian scale - Wikipedia

    en.wikipedia.org/wiki/Hawaiian_scale

    Thus, a "3-foot" wave is roughly six feet high (in actuality a height of ~1.8 m), i.e., head-high to a 6-foot (~180 cm) person; a "2-foot" wave is roughly four feet high (height of ~1.2 m), i.e., chest-high to such a person; and a "6- to 8-foot" wave would be 2 to approaching 3 times head-high to such a person (height of ~3.5 to 5 m). As wave ...

  3. Douglas sea scale - Wikipedia

    en.wikipedia.org/wiki/Douglas_sea_scale

    Wave length and height classification. Wavelength. Short wave 100 m – Average wave 100–200 m; Long wave 201 m + Wave height. Low wave 2 m – ...

  4. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    11 cm = 1.1 dm – length of an average potato in the US; 13 cm = 1.3 dm – body length of a Goliath birdeater; 15 cm = 1.5 dm – approximate size of largest beetle species; 19 cm = 1.9 dm – length of a banana; 26.3 cm = 2.6 dm – length of average male human foot; 29.98 cm = 2.998 dm – distance light in vacuum travels in one nanosecond

  5. Wind wave - Wikipedia

    en.wikipedia.org/wiki/Wind_wave

    The wave conditions are: mean water depth d = 2.50 ft (0.76 m), wave height H = 0.339 ft (0.103 m), wavelength λ = 6.42 ft (1.96 m), period T = 1.12 s. [ 28 ] In linear plane waves of one wavelength in deep water, parcels near the surface move not plainly up and down but in circular orbits: forward above and backward below (compared to the ...

  6. 40-foot wave of molasses razed Boston community more than a ...

    www.aol.com/weather/40-foot-wave-molasses-razed...

    In the Liberties neighborhood, at Laurence Malone's warehouse where about 315,000 gallons of whiskey were stored, a fire started sometime between 4 and 8 p.m. on June 18, 1875.

  7. 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.

  8. Wavenumber - Wikipedia

    en.wikipedia.org/wiki/Wavenumber

    Wavenumber has dimensions of reciprocal length, so its SI unit is the reciprocal of meters (m1). In spectroscopy it is usual to give wavenumbers in cgs unit (i.e., reciprocal centimeters; cm1 ); in this context, the wavenumber was formerly called the kayser , after Heinrich Kayser (some older scientific papers used this unit ...

  9. Ship resistance and propulsion - Wikipedia

    en.wikipedia.org/wiki/Ship_resistance_and_propulsion

    where constant (k) should be taken as: 2.43 for velocity (V) in kn and length (L) in metres (m) or, 1.34 for velocity (V) in kn and length (L) in feet (ft). Observing this, Froude realized that the ship resistance problem had to be broken into two different parts: residuary resistance (mainly wave making resistance) and frictional resistance.