Describes how to construct an inexpensive condenser to be used in a fractional distillation demonstration. (BR)

Describes how to collect micrometeorites and suggests a number of related activities such as determining the number of meteors entering the atmosphere and determining the composition of the micrometeorites. (BR)

Report comments about the problem of providing mathematical training for biologists, and then reports on the range and type of mathematics required by biology students at different stages and for different specializations within biology. (BR)

Describes some functional group interconversions that can be carried out on a small scale. The reactions are examples of transformations found in A-level, ONC and HNC courses for British chemistry students. (Author/GS)

Alerts science teachers to "futures research" involving the systematic determination of the major alternative futures which can emerge from our present and the delineation of how our present actions can influence which of these alternatives will occur. Identifies some available resources for teachers. (PEB)

Points out the need for a greater awareness, among physicists, of medieval physical science. Reviews briefly and gives examples of notable achievements of the era and argues that the view of science of fourteenth-century nominalism has greater affinity to today's theoretical physics than that of the Scientific Revolution. (Author/GS)

Presents reactions for the formation of xenon compounds and compounds of the other inert gases. Provides bonding and structure theories for noble gas compounds and speculates on possible applications. (GS)

Describes how to produce a rainbow in the classroom using a laser and a large sphere, or a partial rainbow using a cylinder of water and a light source. (BR)

Describes teaching schemes and apparatus designed to give the teacher and the student a range of reliable, workable experiments to explore the world of small static charges. (GS)

Examines the observations and experiments conducted in the 18th century to detect and measure light pressure. The reception of these results reveals another scientific strategy besides confirmation and refutation, namely, estimation of parameters. (Author/GS)