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200204 19 Friday per->SON notes
| 14.20 .. : first lecture, structure formation and recognition |
 | Prof. Dr. Manfred Euler, Leiter der Abteilung Didaktik der Physik und Direktor am Leibniz- Institut für die Pädagogik der Naturwissenschaften (IPN) / Universität Kiel / Fachgebiete: Biophysik, Physiologie und Biomedizin; |
| Pythagorean discoveries of note --> number correlations |
| harmonices mundi, Keppler |
| Galilei: found out that tension correlates non-linearly with appended weight, so Pythagorean dicovery must be legend |
| distance of frets is not linear (guitar or lute) 1,3,5,7, |
| Sommerfeld: grandfather of quantam physics |
| doktorfater von heisenberg |
| ear is extremely sensitive .5 * 10^-16 W/cm^3 |
| comparable to reciever in satellite dish |
| loudest (pain threshhold) : 12 orders in mag higher in energy (eq 6 orders of mag in amplitude |
| simple experiment to let you hear light: |
| gurkenglas eine seite schwaerzen, dan mit lampe beleuchten |
| 100 Hz |
| aehnlich mit weinglas |
| ear principle: pressure fluctuations in the outside world, converted into density variations of neural discharges |
| superposition principle: differnt frequencies go to different places in ear, basilarmembran |
| wir hoeren besser als die theorie erlaubt: despite dampening |
| nature must have overcome energy dissipation |
| the energy that is lost is pumped back into the system as mechanical energy |
| process postulated 50 years ago, but confirmed only 20 years ago |
| the ear is an active system, an active inner ear, not only reciever but emitter |
| active process widens range of frequency |
| american guy comments: doesnt solve basic problems of hyperacuity |
| main problem of living beings: how to evade themal equilibrium? |
| self-structuring systems |
| demo: glass tube with metal grid near bottom, heat grid, cooling off makes sound |
| structure formation and structure perception |
| what happens if such a self-organizing system interacts with the outside world |
| phase transistion from a superpositins state to a locked state |
| demo: change distance between a loudspeaker and an organ pipe |
| demo: gekoppelte orgelpfeife |
| was ist schlimmer als eine bockfloete? zwei! |
| demo: 4 metronomes alled to occillate will find their synchrony |
| demo: gulliver couldnt have learned the language of lilliputians because we can't resolve the harmonics if they are shifted up by a factor of twelve |
| lead by British gentelman |
| Prof. Anthony Moore, Musiker,Rektor und Professor an der Kunsthochschule für Medien Köln. |
| ammi |
| Dr. Peter Cariani, Research Associate / Eaton Peabody Laboratory of Auditory Physiology/ Massachusetts Eye & Ear Infirmary; und Assistant Professor / Department of Otology and Laryngology/Harvard Medical School; |
| the big |
| what is going on |
Friday, April 19, 2002 at 4:41:12 PM History |
| Prof. Dr. Friedrich Kittler, Medientheoretiker/ Institut für Ästhetik und Kulturwissenschaften, Humbolt-Universität Berlin; |
| strong german accent, almost unitelligeble |
| How and why here in Europe science has originated |
| Eur. science started out of music |
| musicae <-- musa (the muse) <-- mind |
| eco told us about the aristotle's lost chapters on comedy |
| musae danced masked |
| stomach swells |
| gave birth to boy homer |
| how did the greeks come to their writing |
| mythical version |
| historical/archaeological version |
| [always says voy-ell instead of vowel] |
| new theory: homer ay have been illiterate --reciting his iliad -- while in his audience were aristocrats who hired scribes to record his story of Troy |
| earliest greek incription |
| about sex and drugs and rock and roll |
| suggest -- because of citing Nestor -- that writer had read (not heard, because of distance) Illiad |
| 740 B.C. |
| heraklit |
| harmonia |
| related: arithmos -- number |
| opposites coincide, beauty arises out of difference |
| king cadmos of Thebes |
| bringer of phonecian alphabet |
| the mating of struggle and union -- Ares and Aphrodite -- gives Harmonia, young nymph |
| marriage, 9 muses come down with the gods and join the party |
| marriage of music (Harmonia) and writing (Cadmos) |
| results in Gamos |
| related to english gamut (scale) |
| story about Pythagoras of Samos |
| has left his island, long journey to southern Italy |
| there he invented Philosophy |
| Croton, metapont .. |
| he dug a hole, cave, and said to some mother: |
| please write down everything that happens in my absense, in the cave |
| he returned and read the notes, all impressed becaused didn't know writing |
| philolaos of croton |
| Pythogoras exoteric thoughts: things he said to those he did not explain why they are so to |
| akusmata -- things to be heard |
| what is thunder? sound to make the living afraid of death. |
| what is the holy oracle at delphi? the harmony in which the sirens sing. |
| tetrakys |
| invented term, related to Heideggers geviert |
| 1, 2, 3, 4 = 10 |
| tuning and measurment |
| Thales could measure the sun and predict an eclipse, but not tune the sun and produce one |
| Pythagoras could measure the string and tune the lyre to produce a note |
| that's why music is the origin of science of the technically feasible |
| 2:1, 3:2, 4:3 |
| n/(n+1) |
| later used by euler to define e |
| mating of even and odd numbers |
| 5 is named gamut, because the sum of the first numbers |
| three middles |
| arithmetic |
| geometric |
| harmonic |
| 1:x = x:2 ==> x = sqrt of 2 |
| alogon, end of harmony, ir-ratio |
| [hates socrates, he destroyed everything (see last dialog before death, with Pythagoreans)] |
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