Aircraft
Blimps, Helicopters, Spacecraft, Aeronophynet, Aviation Database, Avro Vulcan Pages, Boeing Kids, Canadian Museum of Flight, EAA Aviation Young Eagles Web Site, Federal Aviation Administration (FAA), Flapping Wings: Introduction to Ornithopters, GlidePath, How Things Fly
Boats
Adventures at Sea, Deep-Sea Machines, Eddy's Thimble SIB Pier, Finland's Icebreakers, Greatest American Fourth of July, Lady Washington, Mariners' Museum, NOAA Ship Ronald H. Brown, Pride of Baltimore II, Savage Seas: The Captain's Bridge
Cars and Trucks
Electric, Solar, American Honda, Antique Motorcycle Club of America Virtual Museum, Car Connection, Early Adventures with the Automobile, Fire Truck, Greatest Achievements: Highways, Let There Be Lights, Monster Truck History, Museum of British Road Transport, New Teen Drivers
Robots
CCUV Project, Get A Grip On Robotics, JPL Robotics, Lego Mindstorms Robotics, NASA's Cool Robot Of The Week, NOVA Online - Bomb Squad, ROVer Ranch, Tech Museum of Innovation Robotics, Upuaut Project
Animated Engines
Animated pictures explain the inner workings of a variety of steam, stirling, and internal combustion engines.
Edheads Simple Machines Activities
Explore the rooms of a house to discover and identify various simple machines. Look in the tool shed to learn about Compound Machines.
Introduction to Simple Machines
A look at the six basic types of simple machines, with pictures and quizzes.
Simple Machines
Gives real-life examples of the six simple machines, plus an easy quiz, and links.
Simple Machines
Explains simple machines such as levers, gears and pulleys with text, pictures and animations.
Simple Machines Learning Site
An overview of the six basic types of simple machines with pictures and student drawings.
The Secret Life Of Machines
Drawings and explanations to common machines and how they work.