Some measurements of the spectral components of planetary radiation and planetary temperatures

The object of the present paper is (1) to describe further measurements of the radiation emitted by planets; (2) to give an radiation into spectral components; and (3) to give estimates of planetary temperatures.     

The dynamics of nuclear reactions

The dynamics of nuclear reactions are surveyed on an elemental basis with emphasis upon the c.g. system of coordinate axes. Corrections are given for angular distributions, angular straggling, and thin target straggling.     

Display and interaction features of instructional texts and computers

The design of instructional texts is an area of educational technology which is attracting considerable interest, much of it centered on the display of information and on student-text interaction. This article discusses whether techniques found useful in text design can be transposed to the display of CAL materials. Each medium has its problems and advantages; at present, little is directly transferable from one medium to the other. The computer-presented 'dynamic book' concept provides an example of how to combine giving learners control over the presentation with book-style indexing and browsing.