Kids learn about the theory of relativity in the science of physics including examples, special vs. general, length contraction, and E=mc2.

[Free Registration/Login may be required to access all resource tools.] Kinetic theory of matter and how kinetic energy relates to the state of matter.

Article outlining the scientific history behind the discovery of black holes. The writer discusses how scientific theories guide scientists in creating explanations for natural phenomena.

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

In this interactive tutorial students explore special relativity and quantum mechanics. Learn basic tenets of the theory of special relativity and the relationship between mass and energy. Also discover the evidence for the particle...

[Free Registration/Login may be required to access all resource tools.] Explores Einstein's theory of gravity and the warping of space-time.

Extensive discussion of "qualia," the sense-data that inform perception. Considers the different meanings of the term and relates them to epistemological questions about mental states, theories of representation, and introspection....

Explore some of our most fundamental questions about space exploration with this research overview collected by scientists at the National Science Foundation. Additionally, experience deep space first-hand with telescope interactives.

A representation of Minkowski spacetime diagrams using graph paper that is rotated, showing the world lines of three stationary observers with light clocks.

The path of cannonballs fired near a black hole are computed using the Schwarzschild metric and presented in this visualization, allowing for study of the theory of general relativity. The cannon's angle and the number and speed of the...

Manipulate variables in order to observe the effects of relative motion on events such as an explosion and the time at which its light signal reaches a destination.

A timeline of scientific discoveries and theories of the ancient Greeks. It covers the period from 585 BC to 150 AD, with three additional entries for related events in the 1900s. Each entry has links to additional content on the website...

Graphical visualization of how the relative motion of two events affects their spatial and temporal separation in special relativity.

Mathematics and Science often go together in physics and other studies. This site explores a physicist who utilized both fields to advance the ideas of relativity and other concepts.

Discover Alfred Wegner's ideas relating to continental drift and seafloor spreading which are both evidence to the concept of plate tectonics.

Addressed with questions about relative speed and the speed of light, students begin to "think like Einstein" while exploring the science behind the mystery of time travel.

Simulation examining simultaneity and causality in special relativity by manipulating the space and time coordinates of one or two events.

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.

This site offers a wealth of online textbook-related materials that encourage the discovery of science in the world around us. Enter the site to access material on specific topics. Each section contains reading material (complete with...

Visualization of how space curves near a huge object.

In this Spanish-language entry, grasp a concrete understanding of a complicated man whose discoveries impacted society more than any other scientist. This site chronicles the life and accomplishments of Albert Einstein. It also studies...

Online access to portions of Einstein's original papers and manuscripts.

Take a look at general relativity with this science simulation illustrating orbits of objects that are the result of an explosion near a black hole measured in Schwarzschild metric. Users are able to adjust the energy from the exploding...

Consider general relativity with this simulation using Kerr metric of orbits in an equatorial plane near a rotating black hole.