View Proposal #102
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| ID | 102 |
|---|---|
| First Name | Joel |
| Last Name | Haack |
| Institution | University of Northern Iowa |
| Speaker Category | faculty |
| Title of Talk | The Henrici Harmonic Analyser |
| Abstract | The mathematical basis for analysis of a periodic function was provided by J. B. J. Fourier in Paris in 1822 in the form of a series expansion. Calculations, however, were very tedious. Several ingenious mechanical devices to perform the analysis were devised in the late 19th Century and perfected in the early 20th Century. An important example is the Henrici analyzer, a working version of which is housed in the Department of Speech and Audiology at The University of Iowa. The mathematical background of the device will be described, and videos will be shown of the authors using the Iowa Henrici to analyze a waveform. Pictures and descriptions of another device at the Science Museum in South Kensington, London will also be presented. |
| Subject area(s) | History of math, fourier series |
| Suitable for undergraduates? | Yes |
| Day Preference | |
| Computer Needed? | |
| Bringing a laptop? | Y |
| Overhead Needed? | Y |
| Software requests | |
| Special Needs | |
| Date Submitted | 2/2/2005 |
| Year | 2005 |