Explore Column Notice, Wave Produced and more!

Explore related topics

Sound resonance is investigated by varying the pitch of a speaker playing in a variable length pipe. Set the frequency of the speaker output and move the pipe up and down to change the length of the air column. Notice how the volume changes depending on the length of the column of air. The tone is loudest when the air in the tube resonates, i.e. when the length of the air column is 1/4 the length of the sound wave produced by the speaker.

Sound resonance is investigated by varying the pitch of a speaker playing in a variable length pipe. Set the frequency of the speaker output and move the pipe up and down to change the length of the air column. Notice how the volume changes depending on the length of the column of air. The tone is loudest when the air in the tube resonates, i.e. when the length of the air column is 1/4 the length of the sound wave produced by the speaker.

In this exhibit, you can raise and lower the pitch of your voice by more than one octave without changing the tempo. When you speak into the microphone you make the air around the microphone vibrate. An electronic circuit picks up the vibrations, changes the frequency, and then sends the result to the earphones. When you turn the pitch control higher, the circuit increases the frequency of the vibrations. When you turn the control lower, the circuit decreases the frequency of the vibrations.

In this exhibit, you can raise and lower the pitch of your voice by more than one octave without changing the tempo. When you speak into the microphone you make the air around the microphone vibrate. An electronic circuit picks up the vibrations, changes the frequency, and then sends the result to the earphones. When you turn the pitch control higher, the circuit increases the frequency of the vibrations. When you turn the control lower, the circuit decreases the frequency of the vibrations.

A computer registers your ability to sing on pitch to “Happy Birthday”. Controls allow the visitor to adjust the key in which the song is played, to match their own voice range.

A computer registers your ability to sing on pitch to “Happy Birthday”. Controls allow the visitor to adjust the key in which the song is played, to match their own voice range.

fly a plane  Take control of a model airplane and learn how to take off, fly and land like a pilot as you master roll, pitch and yaw.

fly a plane Take control of a model airplane and learn how to take off, fly and land like a pilot as you master roll, pitch and yaw.

In Vibrating String, an electric vibrator tugs a string 120 times per second. The string can resonate in different standing wave patterns depending on the tension of the string. By tightening or loosening the string, visitors can change its fundamental resonant frequency and the number of waves they see.

In Vibrating String, an electric vibrator tugs a string 120 times per second. The string can resonate in different standing wave patterns depending on the tension of the string. By tightening or loosening the string, visitors can change its fundamental resonant frequency and the number of waves they see.

Just like the thirty-year-old video game only the “ball” changes pitch as it approaches the “paddle” allowing visitors to play without looking.

Just like the thirty-year-old video game only the “ball” changes pitch as it approaches the “paddle” allowing visitors to play without looking.

Visible Effects of the Invisible graphically demonstrates resonant frequencies. A horizontal, clear glass tube is partially with clear fluid. Sound generated by a speaker housed at one end of the tube causes the air in the tube to vibrate and geysers appear in the fluid where the motion of air is greatest. The geysers are generated at various sections of the tube by the adjusting the resonant frequency of the speaker which causes pressure differentials.

Visible Effects of the Invisible graphically demonstrates resonant frequencies. A horizontal, clear glass tube is partially with clear fluid. Sound generated by a speaker housed at one end of the tube causes the air in the tube to vibrate and geysers appear in the fluid where the motion of air is greatest. The geysers are generated at various sections of the tube by the adjusting the resonant frequency of the speaker which causes pressure differentials.

At Selective Hearing, two separate recordings play at the same time, one coming from a speaker on the right, and the other from the left. Listening to one message makes the other seem to move into the background. Looking at one speaker will bring its message to the foreground. The exhibit highlights the process of listening to one conversation while excluding others at, for example, a cocktail party. The sorting out occurs in the brain, not in the ears themselves,

At Selective Hearing, two separate recordings play at the same time, one coming from a speaker on the right, and the other from the left. Listening to one message makes the other seem to move into the background. Looking at one speaker will bring its message to the foreground. The exhibit highlights the process of listening to one conversation while excluding others at, for example, a cocktail party. The sorting out occurs in the brain, not in the ears themselves,

Watch a moving picture of your voice. Sing or talk into the microphone as you watch the screen. A computer analyzes the sound and displays it as a scrolling pattern. The horizontal band represents the different pitches, or frequencies in your voice. The colors represent the loudness of each frequency; louder sounds show up as yellow and red, softer sounds show are blue and purple.

Watch a moving picture of your voice. Sing or talk into the microphone as you watch the screen. A computer analyzes the sound and displays it as a scrolling pattern. The horizontal band represents the different pitches, or frequencies in your voice. The colors represent the loudness of each frequency; louder sounds show up as yellow and red, softer sounds show are blue and purple.

A flexible metal rod is mounted over a sound box; visitors pluck the rod and change its effective length to see how stronger or weaker vibrations at different lengths relate to the sounds it creates.

A flexible metal rod is mounted over a sound box; visitors pluck the rod and change its effective length to see how stronger or weaker vibrations at different lengths relate to the sounds it creates.

Pinterest • The world’s catalogue of ideas
Search