Group items tagged waves - Chem 109H Fall08

Waves and Wave Motion - 0 views

www.visionlearning.com/...module_viewer.php

waves

shared by ChemPaths UW-Madison on 15 Sep 08 - Cached

- A A on 15 Sep 08
  
  Simple, direct tutorial on waves.
  
  <div class="cArrow"> </div><div class="cContentInner">Simple, direct tutorial on waves. </div>
  
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Waves can take many forms, but there are two fundamental types of waves: “longitudinal” and “transverse” (see Figures 1 and 2).
- ChemPaths UW-Madison on 15 Sep 08
  
  We didn't talk about this in class, but it helps explain why some waves can't even be seen moving - like longitudinal waves in the stones during earthquakes!
  
  <div class="cArrow"> </div><div class="cContentInner">We didn't talk about this in class, but it helps explain why some waves can't even be seen moving - like longitudinal waves in the stones during earthquakes!</div>
  
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ChemPaths UW-Madison on 15 Sep 08

Excellent site on wave mechanics and the history of how we think about waves. Mostly about liquid waves.

<div class="cArrow"> </div><div class="cContentInner">Excellent site on wave mechanics and the history of how we think about waves. Mostly about liquid waves.</div>

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Wave Tutorial - 0 views

chemed.chem.wisc.edu/...index.plx

109h atomic duality structure wave-particle waves

shared by ChemPaths UW-Madison on 04 Sep 08 - Cached

ChemPaths UW-Madison on 04 Sep 08

Walking students from basic wave mechanics on toward the idea of the electron as a confined wave.

<div class="cArrow"> </div><div class="cContentInner">Walking students from basic wave mechanics on toward the idea of the electron as a confined wave.</div>

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Olympus Microscopy Resource Center: Physics of Light and Color - Particle and Wave Diff... - 0 views

www.olympusmicro.com/...index.html

duality wave-particle waves

shared by Justin Shorb on 15 Sep 08 - Cached

Justin Shorb on 15 Sep 08

Good Java tutorial about particle versus Waves

<div class="cArrow"> </div><div class="cContentInner">Good Java tutorial about particle versus Waves</div>

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ASPIRE - Waves - 0 views

sunshine.chpc.utah.edu/...waves.htm

shared by A A on 15 Sep 08 - Cached

Justin Shorb liked it

- A A on 15 Sep 08
  
  Interesting way to understand wave mechanics.
  
  <div class="cArrow"> </div><div class="cContentInner">Interesting way to understand wave mechanics. </div>
  
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- Justin Shorb on 15 Sep 08
  
  This reminds me of the video in lecture. However, I really like the way the applet shows how waves work in what looks like a crystal lattice.
  
  <div class="cArrow"> </div><div class="cContentInner">This reminds me of the video in lecture. However, I really like the way the applet shows how waves work in what looks like a crystal lattice.</div>
  
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ChemPaths: Standing Waves - 0 views

chemed.chem.wisc.edu/...index.plx

shared by Jongmin Lee on 07 Sep 08 - Cached

- Jongmin Lee on 07 Sep 08
  
  When a wave is confined to a specific place, only certain wavelengths--those that can fit the space available--are allowed. These allowed waves reflect from the boundaries of the space and the reflection reinforces the original wave (constructive interference). All other wavelengths cancel each other out by destructive interference.
  
  <div class="cArrow"> </div><div class="cContentInner">When a wave is confined to a specific place, only certain wavelengths--those that can fit the space available--are allowed. These allowed waves reflect from the boundaries of the space and the reflection reinforces the original wave (constructive interference). All other wavelengths cancel each other out by destructive interference.</div>
  
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- ChemPaths UW-Madison on 15 Sep 08
  
  Has anyone determined the pattern in the frequencies for the videos?
  
  <div class="cArrow"> </div><div class="cContentInner">Has anyone determined the pattern in the frequencies for the videos?</div>
  
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http://chemed.chem.wisc.edu/chempaths/paths/index.plx?path=waveTutorial&stone=3 - 0 views

chemed.chem.wisc.edu/...index.plx

shared by Michael Nonte on 07 Sep 08 - Cached

- Jongmin Lee on 07 Sep 08
  
  As the wave frequency is increased, the wavelength decreases.
  
  <div class="cArrow"> </div><div class="cContentInner">As the wave frequency is increased, the wavelength decreases.</div>
  
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- Justin Shorb on 15 Sep 08
  
  Yes - what do you think this will end up meaning for relating color of light to energy of light? What does a long wavelength mean?
  
  <div class="cArrow"> </div><div class="cContentInner">Yes - what do you think this will end up meaning for relating color of light to energy of light? What does a long wavelength mean?</div>
  
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- Michael Nonte on 15 Sep 08
  
  1-D Vs. 2-D Waves
  
  <div class="cArrow"> </div><div class="cContentInner">1-D Vs. 2-D Waves</div>
  
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- Justin Shorb on 15 Sep 08
  
  Which of these waves was 1D and which 2D?
  
  <div class="cArrow"> </div><div class="cContentInner">Which of these waves was 1D and which 2D?</div>
  
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ChemPaths: Standing Waves: Chladni Plate - 0 views

chemed.chem.wisc.edu/...index.plx

shared by Justin Shorb on 10 Sep 08 - Cached

It will produce a loud sound when a resonant frequency is reached.
- Alex Schwartz on 10 Sep 08
  
  Loud sound also produced by resonant frequencies...notice, resonant light waves produce visibly pleasing results while sound waves produce audibly noticable results.
  
  <div class="cArrow"> </div><div class="cContentInner">Loud sound also produced by resonant frequencies...notice, resonant light waves produce visibly pleasing results while sound waves produce audibly noticable results.</div>
  
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- Justin Shorb on 15 Sep 08
  
  Yes, and resonate frequencies can produce non-pleasing results - the age old "shattering wine glass" which happens when an opera singer hits just the right 'resonating' high pitch!
  
  <div class="cArrow"> </div><div class="cContentInner">Yes, and resonate frequencies can produce non-pleasing results - the age old "shattering wine glass" which happens when an opera singer hits just the right 'resonating' high pitch!</div>
  
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Assignment: Wave Tutorial - 89 views

Greetings 109H Students! This forum contains posts and discussions about Diigo-based assignments. Feel free to leave comments here regarding questions and the ChemPaths administrator will get back...

109h

started by ChemPaths UW-Madison on 03 Sep 08 no follow-up yet

Biodegradable plastics made from corn - 0 views

blogs.zdnet.com/emergingtech

Plastics Bioplastics

shared by Becky Kriger on 08 Dec 08 - Cached

Biodegradable plastics have already been created by using proteins from plants such as corn or soy. But they were not strong enough to be used by the industry. Now, researchers at Iowa State University have found a way to reinforce these biorenewable plastics. They are using high-powered ultrasonics to reinforce the plastics with nanoclays.
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But how biodegradable plastics can be made with corn proteins? Grewell keeps a plastic model of a molecule looking like a ball. That's about the shape of a soy or corn protein […] Then he unfolded the model into a long, straight loop. That's what happens when researchers add some glycerin — a byproduct of biodiesel production – and some water to the molecule.
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Nanoclays are clays from the smectite family which have a unique morphology: they form platelets about 1 nanometer thick and 100 nanometers in diameter. Below is an example of the structure of one nanoclay raw material named montmorillonite.
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...1 more annotation...
Apparently, it's difficult to use these nanoclays. So the researchers turned to "high-powered ultrasonics — high-frequency sound waves too high for human hearing – to separate and disperse the platelets."
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Mechanical Waves - 0 views

chemed.chem.wisc.edu/...index.plx

shared by Michael Nonte on 15 Sep 08 - Cached

- Michael Nonte on 15 Sep 08
  
  On this page: -Propagation -Frequency -Wavelength
  
  <div class="cArrow"> </div><div class="cContentInner">On this page: -Propagation -Frequency -Wavelength</div>
  
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NSDL.org | Light Color Energy Educational Resources Search Results > Page 1 | The Nati... - 0 views

nsdl.org/search

109h atomic light particles pdf structure subatomic waves

shared by Justin Shorb on 15 Sep 08 - Cached

LIGHT: ITS SECRETS REVEALED
- Justin Shorb on 15 Sep 08
  
  This is a fairly large PDF file, but it has some good visual information!
  
  <div class="cArrow"> </div><div class="cContentInner">This is a fairly large PDF file, but it has some good visual information!</div>
  
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Justin Shorb on 15 Sep 08

Great PDF talking about light. Good images of how to go from wavelength to sizes of various objects.

<div class="cArrow"> </div><div class="cContentInner">Great PDF talking about light. Good images of how to go from wavelength to sizes of various objects.</div>

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