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Cherry tree moving with the wind blowing about 22 m/sec (about 79 km/h or 49 mph) Sound of wind blowing in a pine forest at around 25 m/sec, with gust alterations. Wind is the natural movement of air or other gases relative to a planet's surface.
The vortex trails produced as the wind passes over a rope produce a sound with a frequency that varies with the velocity of the wind and the thickness of the rope. [ citation needed ] Each doubling of the wind velocity results in an octave increase in the tone, allowing up to a six octave variation in a strong, gusty wind.
Erke, wind instrument of Argentina. A wind instrument is a musical instrument that contains some type of resonator (usually a tube) in which a column of air is set into vibration by the player blowing into (or over) a mouthpiece set at or near the end of the resonator. The pitch of the vibration is determined by the length of the tube and by ...
Helmholtz resonance, also known as wind throb, refers to the phenomenon of air resonance in a cavity, an effect named after the German physicist Hermann von Helmholtz. [1] This type of resonance occurs when air is forced in and out of a cavity (the resonance chamber ), causing the air inside to vibrate at a specific natural frequency .
The wind machine is played by rotating the crank handle, which is attached to the cylinder, to create friction between the wooden slats and the material covering that touches the cylinder but does not rotate as the crank handle is turned. This friction between the wood and the material covering creates the sound of rushing wind.
Buran (a wind which blows across eastern Asia. It is also known as Purga when over the tundra); Karakaze (strong cold mountain wind from Gunma Prefecture in Japan); East Asian Monsoon, known in China and Taiwan as meiyu (梅雨), in Korea as jangma (), and in Japan as tsuyu (梅雨) when advancing northwards in the spring and shurin (秋霖) when retreating southwards in autumn.
A notable example of this phenomenon is the Aeolian tones produced by wind blowing over fixed objects. Although no complete scientific theory of the generation of noise by aerodynamic flows has been established, most practical aeroacoustic analysis relies upon the so-called aeroacoustic analogy , [ 1 ] proposed by Sir James Lighthill in the ...
Another name used for this wind is samiel (Turkish samyeli from Arabic sāmm سامّ meaning poisonous and Turkish yel meaning wind [1]). An alternative type occurring in the region of Central Asia is known as "Garmsil" (гармсель). The name means "poison wind" and is given because the sudden onset of simoom may also cause heat stroke.