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Acoustics discussions for students of all ages

December 6 -- Last Class

On the last day of class, December 6, 2005, Mrs. Anderson presented me, Glenn Bowie, with two gifts: a large SQUIRT beverage bottle, and a thank-you note from class members. She presented assistant teacher Tyler Knott with a case of four unopened root beer bottles.

Mrs. Anderson commented that the Squirt bottle would have a note like that of a tuba.
Analysis showed that the bottle note equals 105 Hz.
This picture is us in Dr. Bowie's class on sound. During this picture we were howling like wolves to be able to compare our sounds with those of wolves and an Alaskan Malamute.

We used a one program called WavePad to record sounds and another called Gram to analyze them.
We also made a jug band by filling beverage bottles with just enough water to get the right note. We were going to make a recording but we ran out of time.

In our jug band we had three different notes. The notes we used were F, middle C, and B-Flat, or A-sharp. We played Polly Wolly Doodle and I've Been Working On The Railroad.

The chart above shows the different frequencies for the notes in Hertz, or cycles per second. The human ear can hear between 20 and 20,000 Hz and most musical sounds are between 100 and 12,000.

This is a picture of Dr. Bowie, Mrs. Anderson, and Tyler Knott who put this class together.

Course Content
Unit 1. . Week 1
i. . how to sound a bottle

Unit 2. . Week 2
i. . Richard S. Horne created analyzer called Spectrum
ii. . learn how to use Gram.exe
iii. . Spectrum Class tools

Unit 3.. Week 3
i. . notes in a bottle
ii. . listen to wolves
iii. . Northern Cardinal down-slurred cheer
iv. . listen to a loon -- recognize tremolo
v. . listen to mourning dove, recorded April 3/05
vi. . experience the art of sound

Unit 4. . Week 4
i. . listen to an aircraft flyby sounds
ii. . listen to buzz1, David R. Sky created a Nyquist filter Buzz tone generator and contributed an audio clip [MP3 Clip1] named buzz1.mp3. This example was taken from http://audacity.sourceforge.net/download/nyquistplugins.

our address: glennbowie@live.com