Lec 20 | MIT 8.03 Vibrations and Waves, Fall 2004

Huygens' Principle - Interference - Thin films - Soap - Oil - Light (double slit interference)

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Education

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• vibrations
• waves
• resonance
• superposition
• oscillations
• refraction
• reflection
• Snell
• Maxwell
• MIT
• OpenCourseWare
• Huygens

[kotofu]

@KKinsane2009 the wave will not only phase longitudinally, but it will also have a reduction in its amplitude in the order of cos(phase/2), that is from 2A of course, the superposition of the two waves

[soso2282]

Thank you professor

[ayan20061993]

Thank you profeesor..... You have made the things so clear by beautiful demonstrations.....

[Guardianangelhybrid]

Thanks to Professor Walter Lewin I finally understand the principle of waves. THX!!!!!!!

[KKinsane2009]

:) wow, I wouldn't go that far, I just never accept that scientists have tried hard enough, at school I always got told "this is that its been proven done deal with it" so I ask "have YOU read the theory?" answer is always no, so I continue from there and low and behold looking yourself is a better aproach than being told what every constant is that its immutable etc, thats not learning thats programming and I will not have it :)

DO our Laws Of Physics apply to the entire universe though :O

[KKinsane2009]

if sin(a) for example is flipped 180 (upside down to make it sound simpler) and is triggered the exact same time as the original it will cancel itself. I figured this out by messing with synthisizers, warbeats has a tutorial on how to do this with instrumentals and originals to obtain clean vocal tracks, and I believe this has MUCH wider application in sciences.

however if the difference like you say is 0.5 Lamda the wave will "phase" longtudinally. damn this is confusing.

[sn1pe352]

KKinsane2009; you are truly more advanced than any MIT student could dream of :D

We're truly living in a musical universe and until we understand vibratory physics entirely we will never truly understand the universal law's which govern our entire cosmos

[zaguilar1]

you must like Bill Nye

[Loyal234]

I am learning the same thing in my AS-Level!!!

[KKinsane2009]

how many physicists understand the circle of fitfhs? and harmonic theory? music?! because you need to imho, it is key.