Date: Thu, 18 Mar 1999 14:43:43 -0500

Author: Gerald Zani

Subject: Re: Stringed Instruments


There are a couple wonderful crowd pleaser demos that the Chicago Alliance did
at Notre Dame.

One is to take a trumpet, or any handy brass wind instrument, dip the end in
soap bubble solution and hold a note. Very surprising.

The second demo was to build a Swiss horn. Start with about 4 or 5 two foot
long pieces of PVC tubing. Blow into one piece like a trumpet and get the
sound of a straight tube, which has only the odd harmonics. Then add a second
tube onto the first to double the length. Again blow like a trumpet. Add a
third tube, and a fourth, and so on, increasing the length but maintaining the
sound quality of a straight tube, that is, only the odd harmonics are heard.
Then slap a fluted horn extension onto the end piece and produce some even
overtones onto the odd harmonics of the straight tube. Then compare this
to the sound of a trumpet (straight bore) and a cornet (similar but with a
conical bore).

So, who is bringing the trumpet and cornet? JZ

At 02:14 PM 3/18/99 -0500, you wrote:
>Ha, ha....the only instrument I currently play is the Bass drum...and its not
>even mine. I could tune three water-filled bottles and play Marry Had A
>Lamb. Maybe we should get band going?
>Karl & Al at Home wrote:
>> ...I know, I'm nothin but a trouble
>> >
>> >
>> >Chele
>> >
>> I'll say...and you haven't yet spoke up about presenting ideas..Oh, I get
>> it, you want to play the guitar for the show. You'll have to tune it to
>> the bloogles and ringing rods,, Karl
>> Karl, Al, Victoria & Ashley Trappe HOME email:
>> 3203 Crawford Rd WORK email:
>> Spicewood, Tx 78669
>Work like you don't need money,
>love like you've never been hurt,
>dance like no one's watching;
>For happiness is a journey,
>not a destination.
>Machele Bailey
>Lab Manager
>Physics Department
>Wake Forest University
>(336) 758-5532

Gerald Zani
Lecture Demonstrator
Dept. of Physics #1843
Brown University Phone: (401) 863-3964
Providence, RI 02912 Fax: (401) 863-2024

Time is the thing. Time is everything. How to spend time.
We all want something to do with our minds.
The choices are a major human preoccupation.
But, once a certain level of time disposal is reached,
should you try to go beyond it?