Our advanced laboratory makes use of several custom-built and commercial instruments for educational experimentation, including a Chaotic Pendulum, Hall Effect Experiment equipment, a Vacuum Evaporator and more.
In this experiment a real-time phase plot is used to show angular speed as a function of angular position. We observe resonance in a damped, driven linear oscillator, as well as chaos and period doubling in a nonlinear oscillator.
Chaos in Electronics
Op amps and other electronic components are used to construct a circuit that exhibits the Lorenz attractor, the first chaotic system ever discovered.
Hall Effect Experiment
Homemade Hall samples and a strong magnetic field are used to create a voltage perpendicular to the magnetic field and an applied current.
Used to determine spacing between atoms in crystals.
Copper is heated until it melts and actually evaporates, forming a thin metallic film on a glass slide.
LED Statistical Mechanics
We observe the Boltzmann distribution in the emission spectra of LEDs in an instructional experiment developed at Emory.
Student work to develop novel instructional experiments has resulted in six journal papers.
- Oscillations of a water column beneath trapped air
- Observing the Maxwell-Boltzmann distribution in LED emission spectra
- Measurements of the speed of light in water using Foucault's technique
- A simple optical probe of transient heat conduction
- Inexpensive fabrication of silicon Hall devices
- Reflection of a polarized light cone