Interactive · 1 question
Sound is simply the sensation of hearing in the brain produced by a vibrating body. It is in fact a form of energy just like light.
The science of sound is called .
Which of the factors do you think are necessary for the production of sound are?
Yes, all three of them are necessary. Otherwise, sound would not be heard. Since sound is a sensation, as mentioned above, one cannot discuss the sound if one does not hear it. So, the 3 factors are essential to discuss sound.
Video · + 1 min read
Sound is made out of differences in pressure. The best way to illustrate this is with fire:
So what's going on here? Mythbusters has a good explanation of how a ruben's tube is built starting from 13 seconds in until about 44 seconds into the video.
So, we know that there's a speaker at one end of the tube, but what does a speaker actually do? We can figure that out by looking at a speaker move in slow motion.
So all that a speaker does is push air in and out very fast, forcing the air around the speaker to vibrate. In the particular case of the Ruben's tube, we can see how this would force the gas out of the tube, how the louder parts of the song (like whenever the bass kicks) force more gas out and cause the flame to flare up, while the quieter parts cause little change to the gas in the tube.
