Describes experiments conducted with semiconductors, photo-cells, and an oscilloscope. (SL)

Describes an experiment for determining the acceleration of a projectile. (SL)

Describes an experimental arrangement which provides a simple introduction to holographic interferometry. (SL)

Presents simple and inexpensive demonstrations of properties of metallic glasses. (SL)

Using the simple optical system and photodiode described in this article it is possible to give clear, quantitative demonstrations of all the Fraunhofer diffraction phenomena at single and multiple apertures. These measurements can be related to the theoretical predictions given in standard textbooks. Circuit diagram and optical layout are…

Describes an inexpensive device for students to measure Planck's constant using the photoelectric effect. (SL)

Describes experiments simulating the mechanics of the human elbow and back. (SL)

Describes four experiments in mechanics which utilize a tennis ball serving machine. (SL)

Describes experiments and apparatus used to study the interaction of falling water drops on water surfaces and the collision between pairs of drops. (SL)

Describes the inception, use, and evaluation of a demonstration laboratory designed to enable first-year university students to observe physical phenomena that they did not observe in the secondary school. (Author/SL)

Describes an experiment for determining the blackbody radiation constant hc/k, utilize a conventionally built cavity and a single-beam, single-window Perkin-Elmer 12-C model spectrometer. (SL)

Biomimetic chemistry is concerned with the synthesis of small, molecular weight molecules which mimic the properties of metal-containing sites within certain biologically significant species. A series of experiments for an advanced undergraduate laboratory is described as a way to introduce this area into the chemistry curriculum. (JN)

Described are experiments to give students experience in the synthesis of peptides from amino acids and to use visible spectroscopy to measure a rate of reaction. The activities were designed for undergraduate courses. (RH)

Described is a laboratory activity to determine five unknown organic compounds. The procedures are designed to help students determine unknowns from a series of tests. (RH)