Explore the fascinating world of sound waves to discover what it is people really hear. Investigate how sound waves move through matter and how different vibration speeds create different sounds. Finally, learn why sound waves are important. ...
In a microphone, sound waves (sound-pressure variations in the air) are converted into corresponding variations in electric current in two operations that take place almost simultaneously. In the first, the sound wave impinges on a slightly flexible surface (diaphragm), causing it to move to and...
The ear mechanism is able torespondto both very small and very largepressurewaves by virtue of being nonlinear; that is, it responds much more efficiently to sounds of very smallamplitudethan to sounds of very large amplitude. Because of the enormous nonlinearity of the ear in sensing pressure...
Once sound waves have penetrated absorbent material, their energy converts into heat. After the sound waves are absorbed by the material, they’re unable to bounce away to another surface. In turn, the room’s echo and reverberation are greatly reduced, leading to a quieter environment....
Whenever, you tune into more than one thing at a time — simultaneously — your brain actually goes into Theta. For example, watching sparkles on the ocean can put you into Theta as you start to see waves of light move across the water. In this state “you” disappear, and you become...
how and why we use radiowaves to communicate, stuff about the electromagnetic spectrum, and of course all the computer science education related to the use of pixel puzzles (see below) plus data transmission, maybe linked to alien life / intelligence and if the schoolkids are of a suitable ...
At the conclusion of the concert, Ernestine Woelger of Skerries Soundwaves presented Orla with a beautiful sea-glass pendant by Ed Cooke. Ernestine explained that Orla had waived her fee and that the net proceeds of the concert were going into a new fund which would be open to music related...
The accomplishment of conquering an obstacle course can be incredibly rewarding, encouraging kids to push their limits and stay active. Moreover, ninja playgrounds often incorporate elements of friendly competition, allowing children to race against each other or time themselves. This competitive aspect ...
sound less than 20hz is called infrasonic( 次声 )waves. when we move, the air will vibrate. the vibration of air can produce infrasonic wave. as the frequency of infrasonic waves is close to that of people's internal organs, infrasonic wave may cause resonance(共振 ) in human bodies. as...
"Everything you hear, no matter how small, from the tiniest buzz of an irradiated bee to the booms of massive waves crashing at the sea wall, has been recorded, designed, edited and mixed to create a world that doesn’t exist." This year's nominees: “Baby Driver,” Julian Slater “...