A surge in a crowd is an example of a transverse wave, where the motion of the individuals is perpendicular to the direction of the wave itself.
That is the definition of "surge".
A longitudinal wave is a type of wave that moves in the same direction as the wave's propagation. In a longitudinal wave, the particles of the medium oscillate parallel to the direction of the wave's motion. Sound waves in air are an example of longitudinal waves.
Light is an example of a electromagnetic wave.
A surge is a gradual increase in water level caused by a storm or seismic activity, while a rogue wave is a single, abnormally large wave that can appear unexpectedly. Surges can be forecasted to some extent, while rogue waves are less predictable and pose a higher risk to ships and structures.
A sound wave or an ocean wave, for example
is the moved in a wave is the moved in a wave
surge
It stands for "wave" or "surge" as in Tsunami.
tsunami, tidal wave or a water surge.
Wave , swell , surge ,
tidal surge
That is the definition of "surge".
The sentence is missing a space between "th" and "crowd". The correct sentence should be "Harry saw me in the crowd, but he did not wave."
Shock wave
Wave, swell, surge, rise and fall...
surge Storm surge waves.
no its not because when someone waves at you you wave back and say hi! .... this is an example of what you SHOULD NOT do : example: a celebrity waves at you saying hi! you just stand there like your mad or you just don't care << that's weird! ..... so yes you should wave back and say hi or something :)