Discusses subatomic particles (quarks, leptons, and others) revealed by higher accelerator energies. A connection between forces at this subatomic level has been established, and prospects are good for a description of forces that encompass binding atomic nuclei. Colors, fundamental interactions, screening, camouflage, electroweak symmetry, and…

Uses centrifugal and Coriolis force to explain electric and magnetic fields induced inside rotating superconductors. (MLH)

This historical survey describes the contributions made to the field of physics by the National Bureau of Standards since its inception in 1901. Four broad areas are emphasized: nuclear physics, thermal physics (including cryogenics), spectroscopy and fundamental constants. (BT)

Newton's contribution to measure a phenomenon quantitatively and explain results along the lines of mechanical philosophy has been accepted as a common approach of science. Describes many of the mathematical relationships based on these lines that Newton found about different phenomena. (PS)

The newest and most exotic manner in which stars die is investigated. A brief outline is presented, along with a discussion of the role supernova play, followed by a description of how the black holes originate, exist, and how they might be detected. (DF)

Presented is an alternative approach to teaching the Physical Science Study Committee (PSSC) wave model of light, using microwaves. Effectiveness of the alternate approach was determined by student achievement of six objectives. Both experimental and conventional PSSC methods were satisfactory for reaching the objectives. (DS)

Describes an undergraduate laboratory experiment on the statistical theory of nuclear reactions. The experiment involves measuring the relative cross sections for formation of a nucleus in its meta stable excited state and its ground state by applying gamma-ray spectroscopy to an irradiated sample. Involves 3-4 hours of laboratory time plus…

Describes a set of experiments for an undergraduate laboratory which demonstrates the relationship between velocity, mass, and temperature in a gas. The experimental method involves time-of-flight measurements on atoms excited to metastable states by electron impact. Effects resulting from recoil in the electron-atom collision can also be…