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# Demos, Techniques, and Experiments

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• Barometer
An introduction to using a Mercury Barometer, also known as a Fortin Barometer. Requires Flash; uses videos in RealMedia, QuickTime or mpeg format.
• Error Analysis
A series of documents on error analysis in the experimental physical sciences. The discussion is at a beginning University level.
• Error Propagation
Propagation of errors of precision using Mathematica and the Experimental Data Analyst package. This brief discussion is suitable for students at all levels who need to do a fair amount of error propagation calculations.
• Fitting Techniques
A brief introduction to fitting data to models. The emphasis is on least-squares techniques. The level is somewhat beyond what we expect from a typical first year student.
• Flash Animations for Physics
An index to various Flash animations for physics.
• Fourier Transform, A Brief Introduction
A brief introduction to Fourier series, Fourier transforms, discrete Fourier transforms of time series, and the Fourier transform package in the Python programming langauge.
• Least-Squares Fitting
A discussion of the design principles for a least-squares fitter suitable for use in analysing data from the physical sciences and engineering.
• Manometers
A small document on using a manometer to measure a pressure.
• Micrometer
Using a Micrometer. Requires Flash.
• Monte Carlo Simulation
Discusses the computer generation of events obeying some statistical model using Monte Carlo simulation. Brief reviews of Special Relativity and High Energy physics are also provided, and a small discussion of the generation of pseudo-random numbers is included. Used by upper year physics majors and specialists.