Learn from a retired race car driver and current owner of a racetrack about the difference between speed, velocity, and acceleration, and how they all come together on the race car track.

Follow the voyage of a barge as it travels through a lock and dam.

Learn how locks and dams are used to help control water levels in different locations on a river.

Learn how locks and dams operate and what happens when a boat goes through to get from one part of the river to another.

Edward Brauer, P.E. US Army Corps of Engineers, shares examples of the Corp's river channeling methods and answers student questions about how the work is done and how effectively they operate.

Learn how to start a locomotive and compare that process to starting a car.

See the workings of a locomotive power plant and learn how it operates.

Railroad personnel explain how a train car's wheel carriage works and how it's repaired.

Railroad personnel remove a train car's wheel carriage for maintenance and repair.

Hear and see a train traffic operator in action as he uses his control panel to guide train traffic.

Learn how train traffic operators use control panels to control rail traffic on railroads and in railyards.

Railroad personnel explain the jobs of the engineer and other personnel, who make sure that train runs smoothly.

Railroad personnel talk about train sizes.

Learn about important events and people in the history of train transportation.

Railroad personnel explain what happens during train rides and how to ride one.

Learn more about the history and operation of trains from experts.

Learn more about the history and operation of trains from experts.

Learn more about the history and operation of trains from experts.

Learn how an electric car operates.

Find out how helicopters fly.

This video explains why airplanes have lights and what purpose they serve.