Astronomer Carl Sagan discusses the possibility of time travel in this audio-enhanced interview from the NOVAWeb site.

Time travel is a staple of science fiction stories, but is it actually possible? Colin Stuart imagines where (or, when) this fascinating phenomenon, time dilation, may one day take us. [5:04]

This is an online study guide for the novel The Time Machine by H. G. Wells including author information, literary elements, chapter-by-chapter summaries/notes, study questions, and analysis.

This article describes how black holes may provide clues to the possibility of time travel and parallel universes.

A review of the game "The Time Tribe." Four children, a wily bird, a devious enemy, a mysterious manor house, a magical key-ring, and an elevator that travels through time. Will you get lost in the sands of time?

Discover some of the deep questions that scientists and philosophers ask about time and some of the ideas that emerge from each one.

Travel through time and explore how the changing climate has affected sea ice, sea level, carbon dioxide levels, and global temperatures. Also, decide whether or not you would be affected if the sea level rose due to warmer temperatures...

A full-time Travel Agent specializing in France custom travel and River Cruising; we offer you the best travel suppliers in the travel industry. We also offer you the best travel deals for all your travel needs for one person or for...

How and why did the United States come to have four time zones? Learn about how cities and railroad travel impacted the development of these zones. Includes video (requires RealPlayer).

Travel through Earth's history to learn about the Oligocene time period, which is characterized by the appearance of most of the living families of mammals.

Explore the work of archeologists and anthropologists by building a 3-D clay representation of a human skull to look for clues to a person's physical form, ethnic origin, behavioral patterns, health history and social standing.

In past times, ocean navigators tossed a piece of wood over the side of their ships and noted how long until the ship passed the wood. They used this time measurement and the length of the ship to calculate their speed and estimate how...

Here's a geology project that uses historical seismograph data that you can collect from the comfort of your own computer. You'll use a web interface to a network of seismometers run by the Northern California Earthquake Data Center, at...

The BBC reveals what is known about wormholes, a possible consequence of Einstein's Theory of General Relativity in which space is bent, opening up the possibility of time travel.

In this experiment, students go outside and create a simulation of P and S waves traveling across a 30-meter span. This is repeated using a 30-meter square. They experiment with P and S wave behavior, record results, and use...

A detailed text-based account of the history of France from earliest times to the present. Included in the history are Gaul, Roman Empire, Franks, Charlemagne, Joan of Arc, French monarchy, French Revolution, establishment of a Republic,...

Read about the government of Namibia from its independence in 1990 until the current time. You can find a list of the current government officials. Information is from the U.S. State Dept. Background Notes.

Read this brief history of Botswana from its pastoral roots to the current time. Information is from the U.S. State Dept. Background Notes.

As part of the study of Space, the students will do research on and create a podcast/vodcast about spinoffs developed from space exploration. In groups, students will use various websites to acquire information about technological...

This project is an experiment in classical physics. You'll be following in Galileo's footsteps, and investigating Newton's laws of motion, but you'll be taking advantage of modern video recording technology to make your measurements. The...

Imagine two aliens racing across outer space to their moon. Who can we deem the fastest alien? With DIRT- or the equation Distance = Rate x Time- we can calculate their rates, using the distance they traveled and the time they took....

Eighth graders are presented with the graphs of two cars traveling. One shows distance from home versus time and the other shows speed versus time. Students are to write a description of what might be happening during each car's...

GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you are? Wilton L. Virgo explains how the answer lies 12,000 miles over your head, in an...

A history of aeronautics focusing on the major types of air travel for each major time period. Excellent pictures are included in most sections. Easier reading is available by clicking on Level 2 or 3.