Search results
Results From The WOW.Com Content Network
A party whistle A metal pea whistle. A whistle is a musical instrument which produces sound from a stream of gas, most commonly air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.
A pea whistle is constructionally identical to a "police whistle", but the chamber contains a small ball, known as the pea, but usually a material such as plastic or hard rubber. When blown, the pea moves chaotically in the chamber, interrupting and modulating the airflow to create a typical warbling/shrieking effect.
Joseph Hudson (1848–1930) was an inventor in Birmingham, England during the late 19th century and the founder of J Hudson & Co in 1870, later to become the world largest whistle manufacturer . Hudson entered a competition held by the Metropolitan police force in London in 1883 to design a better way of attracting people's attention.
Clitoria ternatea, commonly known as Asian pigeonwings, [1] bluebellvine, blue pea, butterfly pea, cordofan pea, or Darwin pea, [2] is a plant species belonging to the family Fabaceae and native to the Indonesian island of Ternate. [3]: 215 In Indian Ayurveda it is commonly known by the name Aparajita.
Abrus precatorius, commonly known as jequirity bean or rosary pea, is a herbaceous flowering plant in the bean family Fabaceae. It is a slender, perennial climber with long, pinnate -leafleted leaves that twines around trees, shrubs, and hedges.
The pea in a pea whistle isn't part of the sound generation mechanism in the way a woodwind's reed is. In pea whistles the moving pea changes the shape of the resonant chamber, and that causes the characteristic warbling of the sound, but the pea has nothing to do with the generation of the sound.
Sesbania grandiflora is a leguminous tree of family Fabaceae.It is fast-growing and soft-wooded, and it grows to heights of 5–20 metres (16–66 feet). The leaves are regular and rounded, and grow to 15–30 cm (6–12 in) long, with leaflets in 10–20 pairs or more and an odd one.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate