Surface Wave

Surface or ground waves can be of mechanical or electromagnetic nature. In physics, a surface wave is a mechanical wave that propagates along the interface between differing media, usually two fluids with different densities. A surface wave can also be an electromagnetic wave guided by a refractive index gradient. In radio transmission, a ground wave is a surface wave that propagates close to the surface of the Earth.

Read more about Surface Wave:  Mechanical Waves, Electromagnetic Waves

Famous quotes containing the words surface and/or wave:

    “Bees
    Shaking the heavy dews from bloom and frond.
    Boys
    Bursting the surface of the ebony pond.”
    —Wilfred Owen (1893–1918)

    “Down the blue night the unending columns press
    In noiseless tumult, break and wave and flow,”
    —Rupert Brooke (1887–1915)