Expert mode allows you to do even more cool stuff. This educational website explores time from the philosophical and physical points of view, and discusses subjective and objective time reckoning. Interactive features of the site include a console where a student can keep personal notes, a forum, and quizzes. There are guides for teachers who want to implement the material in their classroom programs. The site presents a study of how time has been experienced from ancient times up to the Year 2000, and a review of the evolution of time-measurement devices through the ages from sundials to atomic clocks.
Students can learn to make their own sundials.
There are sections on Albert Einstein, Immanuel Kant, and others who studied the phenomenon of time, and monuments such as Stonehenge which show how the ancients understood time in astronomical cycles. An image gallery illustrates some of the historical material. The site was developed for ThinkQuest 2000, an international student Web design contest. The site is presented in English and Dutch. This website was designed to help people learn about energy, energy sources, and energy use.