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African percussion
Agogos
Bags & cases
Bass drums
Batons
Beaters & mallets
Bell trees
Bells
Bird calls
Bodhrans
Cabasas
Caixas
Castanets
Chime bars
Class packs
Claves
Cowbells
Cymbals
Didgeridoos
Dhol drums
Djembes
Doumbeks
Drum keys
Drum skins
Early years
Frame drums
Gamelan
Gathering drums
Glockenspiels
Gongs
Guiros & scrapers
Hand chimes
Hardware
Honestly Made
Horns & sirens
Indian percussion
Jumbie Jam
Kazoos
Kokirikos
Maracas & shakers
Marching drums
Mark trees
Metallophones
Monkey drums
Music frames
Music stands
Music therapy
Ocarinas
Ocean drums
Panpipes
Practice pads
Rainsticks
Rattles
Recorders
Repiniques
Rototoms
Samba
Sand blocks
Sheet music
Singing bowls
Slapsticks
Sleigh bells & jingles
Snare drums
Spare parts
Steel pans
Storage
Straps & harnesses
Surdos
Tabla drums
Taiko drums
Talking drums
Tamborims
Tambourines
Thrones
Thumb pianos
Thunder sheets
Tom toms
Triangles
Tubophones
Vibraslaps
Wak-a-Tubes
Washboards
Whistles
Wind machines
Woodblocks
Xylophones
Red plastic wind whistler
Code: PP3030
£7
RRP £7.50
£5.83
ex. VAT
Quantity:
Add to basket
50+ in stock
Great as a group or classroom activity
Made from 106cm length of strong red plastic tubing
Simply twirl in mid air for unusual whistling sound
The faster you twirl, the higher the pitch
Product description
×
These whistling tubes or 'noise-makers' will keep children entertained for hours, whilst also demonstrating the fascinating physics behind music.
To play, simply twirl the red tube around in the air. The air moving through the instrument produces a range of tones, loosely on the harmonic scale. When twirling the Wind Whistler, the air molecules within the tube begin to bump together and these vibrations produce sound waves. When you twirl faster, a higher tone is produced.
This very simple item, believe it or not, beautifully demonstrates 'Bernoulli's Principle' - that fast moving air molecules create lower pressure. The idea is that the far end of the hose is moving much faster than the end being held so the higher pressure at the held end effectively sucks up air which in turn creates the whistle.