This is a set of six web pages, authored and curated by David P. Stern, describing four unconventional methods of accelerating spacecraft. These are using cannons, nuclear power, solar sails and ion rockets....

This web site for a class on flow visualization showcases the work of engineering and fine arts students. Eleven galleries present student images showing fluids and clouds, with information about both the science and the...

Created by Lang Moore and David Smith for the Connected Curriculum Project, the purpose of this module is to explore the effects of an external driving force on a simple linear oscillator, damped or undamped. This is...

Three European organizations provide electronic access to the Codex 72, part of the Galilean Collection at the Biblioteca Nazionale Central in Florence, Italy. Codex 72 discusses "theorems on motion published in the ...

This essay describes the influence that the pendulum had on Galileo's thinking and science. It also discusses the use of a pendulum to measure time. This is a part of The Galileo Project, an extensive web site on the...