Describes the result of dropping objects of similar size and shape but of differing weight through air. Compares ideas on motion of Galileo and Aristotle. (GH)

Explains macroscopic properties of a number of systems as averaged-out behavior of numbers of particles. The approach is applied to a model of nuclear fission, rotational velocity in a galaxy, the nature of the rings of Saturn, oscillations of the earth, drops on a spider web, and the shape of ruined Meidum pyramid. (GH)

Describes activities using "Hot Wheels" cars as a means of introducing concepts of friction, inclined planes, and kinetic energy to elementary school children. (JR)

Details are provided of the actions of the Atomic Energy Commission in response to the problem of radioactive wastes stockpiled at AEC-licensed uranium mill sites across eight western states. (DT)

Describes an interesting, inexpensive, and highly motivating experiment to study uniform and accelerated motion by measuring the position of a car as it crashes into a rigid wall. Data are obtained from a sequence of pictures made by a high speed camera. (Author/SLH)

Advocates the creation of swimming pool oscillations as part of a general investigation of mechanical oscillations. Presents the equations, procedure for deriving the slosh modes, and methods of period estimation for exciting swimming pool oscillations. (GS)

The changing role of the physical scientist in society is traced from the first atomic bomb explosion in the New Mexican desert in 1945 to the present. Both the good and bad points of the changes brought upon the world by the rapid development of nuclear energy are discussed. (BT)

Intended as a guide to some of the literature and other teaching aids that may help improve course content; this article covers elementary particle research utilizing accelerators in the 50-1000 MeV range. (MLH)

THE AUTOINSTRUCTIONAL MATERIALS IN THIS TEXT WERE PREPARED FOR USE IN AN EXPERIMENTAL STUDY, OFFERING SELF-TUTORING MATERIAL FOR LEARNING ATOMIC PHYSICS. THE TOPICS COVERED ARE (1) ISOTOPES AND MASS NUMBERS, (2) MEASURING ATOMIC MASS, (3) DISCOVERY OF THE NUCLEUS, (4) STRUCTURE OF THE NUCLEUS, (5) DISCOVERY OF THE NEUTRON, (6) NUCLEAR REACTIONS,…

THE AUTOINSTRUCTIONAL MATERIALS IN THIS TEXT WERE PREPARED FOR USE IN AN EXPERIMENTAL STUDY, OFFERING SELF-TUTORING MATERIAL FOR LEARNING ATOMIC PHYSICS. THE TOPICS COVERED ARE (1) RADIATION USES AND NUCLEAR FISSION, (2) NUCLEAR REACTORS, (3) ENERGY FROM NUCLEAR REACTORS, (4) NUCLEAR EXPLOSIONS AND FUSION, (5) A COMPREHENSIVE REVIEW, AND (6) A…

This handbook is designed to help users of radioactive materials to handle the radioactive material without exposing themselves or others to radiation doses in excess of maximum permissible limits. The discussion of radiation levels is in terms of readings from dosimeters and survey instruments. Safety in the handling of radioactive materials in…

The topics covered by 47 booklets in the series are indexed. Page references are not given, but the booklet covering each topic is indicated by a code explained in the first two pages of the index. A brief account of the educational services program of the Atomic Energy Commission describing the booklets, films, and other services provided for…