She discovers how sound has driven the evolution of truly incredible. Here she learns just how much information can be carried by sound. This creates the unique sound an orchestra makes when playing a symphony. The speed of sound depends upon the type of medium and its state. Lets talk about sound waves, sounds waves are actually very kind of strange things to go through and think about how they work. Through the story of a cochlea implant patient helen explores the complicated way our ears can translate sound waves a physical vibration in. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The symphony of physics was broadcast in march, 2017.
Sound is a series of longitudinal or compression waves that move through air or other materials. Sound usually travels fast in gases, faster in liquids, and fastest in solids. Wave motion and sound department of physics and astronomy. Helen investigates how big ben creates pressure waves at particular frequencies, how soprano lesley garretts singing voice works, the deep tones of a volcanic eruption and the sounds made by a black hole in space.
Visiting a hidden location buried beneath the hills of scotland, helen experiences some of the most extreme acoustics in the world. One of three plates with apertures circular, square, or triangular is placed on top and a liquid film is formed across the aperture. Sound waves can travel through solids, liquids, and gases. Aug 31, 2015 this concept trailer covers physics of hearing and corresponds to chapter 17 in openstax college physics for ap courses. On imdb tv, you can catch hollywood hits and popular tv series at no cost. Dr helen czerski investigates the science behind the sounds were familiar with and the sounds that we normally cant hear, from big ben to the stromboli. Sound waves are created by the vibration of some object, like the cone in a radio loudspeaker. Visiting a hidden location buried beneath the hills of scotland, helen experiences some. As a longitudinal wave, sound is a rapid variation in pressure that propagates regions of above normal pressure regions under compression are called compressions or condensations regions of below normal pressure. The symphony of physics episode air dates and to stay in touch with sound waves. While it does not require a background in physics to understand, it is assumed that the reader has at least high school level linear algebra, calculus, and trigonometry. The waves radiating out from the black hole was particularly interesting.
Finally, at the university of cambridges institute of astronomy, helen meets a scientist who. Dr helen czerski examines the world of sound waves. The symphony of physics next episode air date and your others favorite tv shows. Check below for episodes and series from the same categories and more. Dr helen czerski takes us on a sonic odyssey through the sounds of the universe. Ubuntu spotted on sound waves the symphony of physics. To introduce the concept of resonance, in particular the concept of coupling resonance, the author use. Dec 05, 2014 sound waves are longitudinal waves mean the particles in the wave move parallel to the direction of wave and it also creates high and low pressure region when passing through a medium. The nature of sound summary the physics hypertextbook. Sound is a mechanical, longitudinal wave as a mechanical wave, sound requires a medium sound cannot propagate through a vacuum.
Sound waves the symphony of physics s01 ep01 making sound. Helen visits a hidden location in scotland to experience some extreme acoustics. Sound waves are longitudinal waves mean the particles in the wave move parallel to the direction of wave and it also creates high and low pressure region when passing through a medium. Learn physics sound with free interactive flashcards. These sounds are one million billion times lower than the limit of human hearing and could be the key in figuring out how galaxy clusters, the largest structures in the. Oct 21, 2015 sound waves are caused by vibrating objects. The spectrum of science, turns her attention to the amazing world of sound in this intriguing and accessible two. She discovers how sound diffracts and so helps us to sense danger and how. Like any waveform, sound has the characteristics of wavelength, frequency, amplitude and speed. The symphony of physics new episodes, see when is the next episode air date, series schedule, trailer, countdown, calendar and more. And part of the reason for that is theyre associated with really small displacements of lots and lots of atoms and molecules that go back and forth, back and forth many, many times per second. Although im what you might call a self trained sound engineer ive never studied sound formally. Of course, for all practical purposes, the latter is basically a nonstarter.
Plane waves propagation direction w plane waves have a propagation direction and therefore plane wavefronts e. I so wish programmes like the marvellous bbc open university sound waves. Every attempt has been made to explain the concepts. Sound waves and their sources 1933 educational film that covers the. Helen reveals how the volcano produces sound in a similar way to a musical instrument with the volcano vent acting as a sound resonator. Helen demonstrates how sound waves diffract bend around objects and in doing so help us sense danger and locate it. For more like this subscribe to the open university channel free learning. The speed if wave depends on how quickly one particle can transfer its motion to another particle because waves consist of particle vibrations. As is true of all types of waves, specific behaviors, properties, and. Add the shows you like to a watchlist and let the site take it from there. I can also tell that the film editor fully understands the subject, as you cant get.
While a mechanical wave exists in a medium which on deformation is capable of producing elastic restoring forces waves ofproducing elastic restoring forces, waves of. This article is an introduction to the physics of waves as it relates to sound propagation. Pdf download making waves masters of modern physics read full ebook. The physics of waves helps to explain the process by which sound is produced, travels, and is received. Sep, 2017 helen reveals how the volcano produces sound in a similar way to a musical instrument with the volcano vent acting as a sound resonator.
Sound is a wave that is produced by objects that are vibrating. Finally, at the university of cambridges institute of astronomy, helen meets a scientist who has discovered evidence of sound waves in space, created by a giant black hole. Learn quiz physics sound music with free interactive flashcards. Sound waves the symphony of physics s01 ep01 making sound part 01 hd stream watch sound waves the symphony of physics s01 ep01 making sound part 01 online watch. Alternative title making sound, using sound synopsis bbc documentary series exploring the physics of sound. The symphony of physics is a tv show on british national television from bbc4 with an average rating of 3. Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Because sound is the vibration of matter, it does not travel in a vacuum or in outer space. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The speed of sound depends upon the medium and its state. Good program otherwise, the harmonic oscillations interested me the most, the patterns and then the conkers. Dr helen czerski examines the extraordinary messages sound waves carry and how they help us understand the world around us. In the first episode, making sound, scientists from the university of leicester use lasers to reveal how big ben vibrates and creates waves at particular frequencies that then produce the bells distinct sound. Choose from 500 different sets of physics sound flashcards on quizlet.
In this episode of crash course physics, shini goes over some of the basics and some of the not so basics of the physics of sound. Choose from 500 different sets of quiz physics sound music flashcards on quizlet. Helen investigates how big ben creates pressure waves at particular frequencies, how soprano lesley garretts singing voice works, the deep tones of a volcanic. The symphony of physics is on tv, including series 1episode 2. Sep, 2017 dr helen czerski examines the extraordinary messages sound waves carry and how they help us understand the world around us. The symphony of physics is a twopart bbc documentary series hosted by dr. Sound waves the symphony of physics s01 ep01 making. The application of acoustics is present in almost all. The waves can pass quickly through solids, a bit more slowly through liquids, and more slowly again through gases. How sound propagates through a medium, pitch, timbre, loudness e.
Many examples are given of how sound is produced, such as how each musical instrument, even when playing the same note, creates different. Through the story of a cochlea implant patient helen explores the complicated way our ears can translate sound waves a physical vibration in the air. Finally, at the university of cambridges institute of astronomy, helen meets a. Vortex shedding can result in periodic sound waves. A cylindrical cell mounted on a low cast iron tripod has a tube on the side to admit sound. Helen czerski, which takes us on a journey into the world of sound waves and reveals what the physics of sound can tell us about the world and how it works. Select any poster below to play the movie, totally free. Produced in collaboration with pbs digital studios. Dr helen czerski investigates the extraordinary science behind the everyday sounds we hear and those that we normally cannot hear. The symphony of physics, series 1, episode 1, making sound. Dr helen czerski conducts a modern day version of ernst chladni plate experiment. A cellist with impaired hearing gives our physical definition of sound.
When two waves overlap by being in the same place at the same time a kid on a raft moving towards you is making waves by dipping his hands in the water. This concept trailer covers physics of hearing and corresponds to chapter 17 in openstax college physics for ap courses. This educational video produced by encyclopedia britannica explains the science of sound. Many examples are given of how sound is produced, such as how each musical instrument, even when playing the same note, creates different tones because of the way the sound is made. When sound from, say, a tuning fork enters the cell through the tube, twodimensional standing waves form in the membrane. Waves a wave is a disturbance that pppg gropagates through space and time, usually with transferrance of energy. The speed of sound also depends on the temperature of the medium. Through the story of a cochlea implant patient helen explores the complicated way our ears can translate sound waves a physical vibration in the air into an electrical signal our brain can understand. The nature of simple harmonic motion as periodic, in contrast with noise, which is nonperiodic, is pointed out very early on. With helen czerski, trevor cox, martin cockrill, marc holderied. Sound waves generally travel faster through solids than through gases. Dr helen czerski investigates the extraordinary science behind the everyday. The time needed for a wave to make 1 complete cycle.
The world is awash with sound waves, they are all around us. Jul 11, 2018 sound waves the symphony of physics s01 ep01 making sound part 01 hd stream watch sound waves the symphony of physics s01 ep01 making sound part 01 online watch sound waves the symphony of physics s01 ep01 making sound part 01 online stream. Helen czerski, taking us on a journey into the world of sound. Aug 04, 2016 in this episode of crash course physics, shini goes over some of the basics and some of the not so basics of the physics of sound. Sound waves and the speed of sound physics phys101. With helen czerski, trevor cox, marc holderied, jenny bizley.
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