Provides a discussion which is intended for chemistry college students on the ion cyclotron resonance (ICR) spectroscopy, the physical basis for ion cyclotron resonance, and the experimental methodology employed by ICR spectroscopists. (HM)

Focuses on recent research on currents and eddies of the earth's oceans. Special emphasis is given to instrumentation involved in studying the oceans. (SA)

Gives a brief description of open-circuit wind tunnels of rectangular cross-section and of how expanded polystyrene can be used to build a small one. (Author/GA)

An effective demonstration of the phase relationships in a series RLC circuit, resonance and Q, is made possible by multiplexing four signals onto a single channel, thereby converting a single-channel scope to four channels. (Author/GA)

Describes the following: a device which converts the displacement of a pendulum into an electric signal and is used as a voltage generator of low frequencies; a turn-by-turn transformer demonstration; how to remove the buoyant force on a piece of cork immersed in water; and how to demonstrate Coulomb's Law on the overhead projector. (GA)

Describes the following: use and construction of a lens-pinhole spatial filter assembly to produce expanded beams; how to modify a unilab V. L. F. oscillator to give variable frequencies between .1 Hz and 10 Hz; to use Crookes radiometer quantitatively; and an externally located, movable probe for plasma physics experiments, using conventional…

Describes the science education improvement project at Hostos Community College (New York). The curriculum consists of a melding of technology and pure science, based on the premise that "science-poor" societies should give priority to applied science education. (JDS)

Describes how to construct a moving reference frame for the quantitative measurement of the Coriolis effect. (MLH)

Describes an apparatus that can be used to prepare air-sensitive or water-sensitive samples for melting point determinations. (MLH)

Describes the construction and operation of a temperature programmer; it can be built for less than $100 and can be used with any gas chromatograph that uses a variable resistor to control oven temperature. (MLH)

Describes the construction of a simple apparatus that can be used to take advantage of the overhead projector in a spectacular presentation of chemical reactions that complement quantitative approaches of study in the traditional high school science classroom. (JRH)

Reports on a nationwide survey of elementary teachers about factors relating to the acquisition of science equipment and materials, including the amount of personal funds spent to enhance their science instruction. Reports that the average amount spent per teacher totaled $199 with the maximum amount being $2000 and a sizable group not spending…

Provides the apparatus setup, experimental method, necessary formulas, and references for three measurement experiments: (1) "Determine the Magnetic Induction of a Coil with a Hall Element"; (2) "Measuring Magnetic Force and Magnetic Field of Small Permanent Magnets"; and (3) "Measurements of Sound Velocity by Means of PZT" (piezoelectric…

Examines the working mechanism of a commercial "Mystery Glow-Ball" by analyzing its electronic circuitry. Finds that the advertising for the ball is wrong; energy actually came from inserting a battery. (YP)