Welcome to

Physics 331, Winter 2017
New material is again and again added to this Web site!
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Instructor: Tom Giebultowicz ("Dr. Tom")
e-mail: giebultt@onid.orst.edu
(please use this address only for communicating with the instructor)
Office hours: MW 10:30 - 12:00 at Wngr. Room 300 (or any time by appointment).
Lab TA: Maggie Lewis; e-mail: lewismag@onid.oregonstate.edu; Labs meet at WNGR 204.
The list of composers and performers for the Homework.
Rules -- how to choose a name from the list.
Instructions how to write, to prepare and to submit the homework.
NEW!!!!!!! Perfect midterm (solutions, answers).

NEW!!! Info about the TERM PAPER (due at the last week):
Generally, about the term paper: Please click!
More specific guidelines how to write the term paper: Please click!
Examples of good term papers from other Dr. Tom's courses will be posted soon.
FINAL EXAM: Monday, March 20, 2:00 pm - 3:40 pm
(venue: TBA)

February 24: Lecture 14 (topics)
Sound intensity and the decibel scale.
Sound and deciBels
Sound intensity, sound pressure.
Sound level in deciBel scale and pressure scale -- a highly instructive calculator.

Tune of the day:

76 Trombones
(from the 1962 movie "Music Man")
Feb. 21: Lecture 13 -- topics

Fourier analysis/syntesis of a sawtooth waveform

Chopin's "Funeral March", normal way.
Chopin's "Funeral March" played backwards, another example.
Chopin's "Funeral March" played backwards.
"Sight" Classical Piano Music, recorded and playes backwards
Jesse Werkman - Reflections (REVERSE Piano Piece)
Timbre, harmonic content,attack and decay.
The sound waveform: the ADSR sound envelope (a tutorial, one of many one can find in the Web).
Lecture 11 (topics)

Tune of the day:

Cornetto -- an early fingered brass instrument,
popular in the Renaissance times. Today, there are
few musicians who can play this instrument. Crispian
Steele-Perkins, shown in this short Youtube movie,
is one of them.
Fourier analysis in music, Fourier spectra of the middle C tone (440 Hz) from different instruments.
Trombone and the peculiar Fourier spectrum of trombone tones.
Extra: introduction to Harmonic Analysis (a.k.a. Fourier Analysis)
Lecture 10 (topics)

Tune 1 of the day:

Tune 2 of the day:

Lecture 09 (outline)
An excellent Web site with many animations;
in particular, click on the first two links
in the "Sound Waves and Radiation from Sources" menu.

Tune of the day: Johann Sebastian Bach, Toccata and Fugue in D minor, organ.
Lecture 08 (topics, Feb. 02)
Fundamental frequency and harmonics (from "Physicsclassroom")
Harmonics in strings and closed-end air tubes (from Wikipedia).
Motion of air molecules in a sound wave - displacement and pressure
Standing waves in air colums 1 (displacement and pressure) - from "Hyperphysics"
Standing waves in air colums 2 (open ends) - from "Hyperphysics"
Wind instruments -- a Web document showing the names of different parts of organ pipes, etc.
Recorder (simple wind instrument, not an electronic device!)
Embouchure definition (note the difference between the American and British pronunciation).

Tune of the day:
Richard Wagner, "Tannhauser", the overture.
Lecture 07 - topics (Jan. 31)

A good comprehensive tutorial on standing waves (too long to
watch the whole thing in class, but please watch it at home!).

Standing Waves on a String
(one of the many movies on string waves
you may find in Youtube - I like this one).

Another Youtube: standing waves on strings, Part One

Part Two of the above.

Lecture 06 -- topics (Jan. 26).
Shock Wave (Youtube)
Supersonic flight, sonic boom
"Dr. Caulfield's Science Lesson" -- visit (at home, perhaps) "Physics", Chapters 14 & 15.
From the above: standing waves.

Tunes of the day -- Jan. 26, 2015:

Niccolo Paganini, Caprices 1, 5 and 24 (there are 24 altogether)
performed by Itzhak Perlman
Paganini was clearly a genius, as a performer as well
as a composer. Playing his "Caprices" poses such a challenge
that only the very top virtuosos have the courage to play them
for larger audiences. The "Caprices" clearly demonstrate what an
incredible richness of tones can be produced by a violin.

Lecture 05: topic (Jan. 24, 2017)
Power Point: Beats and Doppler Effect

Tune of the day, Jan. 24, 2017:

"Song of the Volga Boatmen"
by Boris Christoff
(one of the greatest bass singers
of the XXth Century).
Lecture 04, 01/19/2017: topics.
About waves, in general (power point)
Huyghens Principle (from Wikipedia).
Tune of the day, Jan. 19, 2017 (click on the icon):

"Ave Maria" (Schubert)
Maria Callas
(one of the greatest sopranos of all time)
Lecture 03, 01/17/2017: topics
Lecture 03 Extras SHO, Wikipedia (good graphics illustrating damping and resonance)

01/12/2017, Lecture 02: topics
Lecture 02 Extras

Tune of the day:

"Flight Of The Bumblebee"