At this site download and read a lecture entitled "Fundamental Ideas and Problems of the Theory of Relativity," given by Albert Einstein during the Nobel Prize ceremonies when he was the laureate in physics. Available in PDF format.

This site has a comprehensive listing of over 50 books written by Einstein. Each has a link to Amazon, listing availability, cost, short synopsis.

A simulation of a well-known special relativity experiment of Einstein's, involving a train and a tunnel. Velocity and tunnel length can be altered to observe the effects.

A historical approach to special relativity, giving all the events and names in the history of discovery of special relativity. Many links to these individuals.

Fear of Physics uses animations and simple language to teach the theory of relativity.

Learn about the 4th dimensions and the theory of relativity.There is no absolute, or "same," time and space. This means time and space are different for everyone! How you experience events in time and space depends on two important...

Albert Einstein publishes his special theory of relativity and his theory on the quantum nature of light, which he identified as both a particle and a wave. With ever new appliances, electricity begins to transform everyday life.

[Free Registration/Login Required] Watch a clock slow down in the strong gravitational field near the event horizon of a massive black hole. A PDF worksheet and a video tutorial are also available. [2:57]

A clear (as these things go) presentation of the calculation of relativistic momentum. Given with a handy calculator that even calculates the % error. The site goes on to Momentum of a Photon, and to Relativistic Energy in Terms of...

A mathematically understandable presentation of relativistic energy. Parts include Relativistic Energy, Rest Mass Energy, Conservation of Energy, Pair Production, Relativistic Kinetic Energy, and even Kinetic Energy. A couple of...

This site from ScienceWorld gives a brief description of Brownian motion. It also goes on with a detailed series of formula derivations utilizing calculus. Links to related topics and definitions are given.

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

Brief explanation of observations that Arthur Eddington used to test Einstein's general theory of relativity. Click on the starred words to learn more about the topic.

Using a question and answer format, this page discusses the question: "Is the Speed of Light Constant?" Discusses some of the history and experiments performed with light and the conclusions drawn from those findings.

This site from ScienceWorld mostly describes Lenard's most notable scientific discoveries and contributions. Includes minimal biographical information and links to additional information on related subjects.

Website for the PBS series "A Science Odyssey." Numerous opportunities to explore the people and discoveries of science.

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...