The attempts of scientists to detect the existence of the medium of ether are traced. (DT)

Using sociometric techniques and ratings of professional status as a researcher, a highly elite invisible college was identified. The study was performed in the context of high energy physics. (Author/JB)

Outlines the prospects of generating coherent x rays using high-power lasers and indentifies problem areas in their development. Indicates possible applications for coherent x rays in the fields of chemistry, biology, and crystallography. (GS)

TEACHERS DEVELOPING LESSON PLANS FOR A COURSE IN BASIC PRINCIPLES AND CONCEPTS OF PHYSICS CAN USE THIS OUTLINE. IT WAS DEVELOPED BY A COMMITTEE OF TEACHERS AND WAS BASED ON EXPERIENCE AND CLASSROOM USE. THE OBJECTIVE OF THE COURSE IS TO HELP STUDENTS ACQUIRE AN UNDERSTANDING OF THE SCIENTIFIC APPROACH AND A WORKING KNOWLEDGE OF BASIC LABORATORY…

This programed booklet presents ideas related to inductors and inductance--resistance networks. It is designed for the engineering student who is familiar with differential equations and electrical networks. A variety of cases are considered with the idea of developing in the student a broad acquaintance with the inductor response. The booklet is…

This programed booklet is designed for the engineering student who is familiar with the techniques of integral calculus and electrical networks. The booklet teaches how to determine the current and voltages across a resistor, inductor, and capacitor after the switch in a network has been closed. This is a classical problem in engineering, the…

Compared were the effects of open-ended experiments and closely directed laboratory experiments in high school physics on concept comprehension, laboratory performance, and achievement in problem solving. Test instruments for evaluating concept comprehension and problem solving were constructed from relevant items in the New York Regents Physics…