Whistles work because of competing air streams that flutter against eachother. A typical whistle allows air to rush straight in and curl around however it has to break through an earlier part of the air stream to get out the top which creates an unstable situation, with the air streams fighting for dominance and thus producing a sound as a result...
Subscribe now for just $9.99 per month and gain access to over 1,250,000 (1.25 million) words worth of educational material pertaining to a wide array of subjects and interests
Some of the topics covered include (but are not limited to)...
Science - physics, elements, chemistry etc.
Mathematics - theories, historical figures, important equations etc.
History - famous figures, battles, empires and civilizations etc.
Art - artists, artwork, art mediums etc.
The ultimate resource for teachers, students, writers; truly anyone with a curious and open mind for new concepts and novel vantage points of observing the world
Not convinced? Keep scrolling. Enjoy the first 500 characters of each and every piece of content available for premium members for FREE! The scroll never ends, so learn all you can!