hypertextbook
Free books to read and enjoy online. General interest hypertext-books and technical hyper-textbooks — physics, mathematics, cycling, education, media, skepticism, West Africa, and more.
Chaos — the study of the uncontainable, the unpredictable, the messy. Fractals — fantastic curves and surfaces unlike anything ever seen in mathematics before. Dimension — a way to bring order to chaos and measure to madness. One can devote an academic lifetime to these topics, but this introduction makes them as easy to understand as the straight line and the parabola. The Physics Hypertextbook is a reaction to three big problems with textbooks: lack of writer's voice, layouts that reduce readability, and outdated economics.
The Physics Factbook is an encyclopedia of scientific essays written by high school students that can be used by anybody. It is an exercise in library research methods in which students are sent out in search of a measurement with the intent of having them find more than just a number with a unit. It is an ongoing project with no foreseeable end date or limits. This is the story of my six-week odyssey riding across North America on a recumbent bicycle: a bicycle you ride in a recumbent (seated) position. Recumbent bicycles are sometimes called "bents", which is where the phrase "get bent" comes from. E-World is a collection of essays by Glenn Elert.
