Simple Pendulum Revisited

Simple quantum systems in the momentum representation

Sites for Course Background: The Mechanical Universe, http://www.learner.org/progdesc/series42.html

Situational diagnosis for preservice elementary teachers on some basic astronomical phenomena

Snell's Law from an Elementary Particle Viewpoint

Solar and lunar demonstrators

Solar heaters and other parabolic devices

Solar Neutrinos: A Popular Account

Solar transit of Atlantis and the Hubble Space Telescope images

Solidification pipes: from solder pots to igneous rocks

Some Aspects of the Electromagnetic Multipole Expansions

Some historical resources for teaching about curved mirrors

Some minimally-variant map-based rules of motion at any speed

Some peculiarities of equilibrium between springs and charges

Some Psychological Knowledge for Scientists' Use

Some Remarks about Variable Mass Systems

Some Remarks on the Question of Charge Densities in Stationary-Current-Carrying Conductors

Sorting Tasks and Vocabulary-in-Context Activities for Assessing Introductory Astronomy Understanding

SPACE PHYSICS: An experimental measurement of longitude

SPACE PHYSICS: Developing resources for astrophysics at A-level: the TRUMP Astrophysics project