Transportation

Ever wonder what's happening inside that huge jet engine as you're cruising along at 30,000 feet? Jets, helicopters and even some power plants use a class of engine called gas turbines, which produce their own pressurized gas to spin a turbine and create power.

By Marshall Brain

A car engine uses a four-stroke cycle -- how can two strokes accomplish the same tasks? Learn all about the two-stroke engine, where it's used and how it compares to a four-stroke.

By Marshall Brain

Were these things invented to make your hair stand on end? Find out how Van de Graaff generators create static electricity and why they were invented in the first place.

By John Zavisa

Not so long ago, the world's naval forces worked entirely above water. But all that changed with the addition of the submarine to the standard naval arsenal.

By Marshall Brain & Craig Freudenrich, Ph.D.

Afterburners allow a jet plane to take off from a short runway, such as the deck of an aircraft carrier. What, exactly, is an afterburner and how do they work? Learn the answer to this question in this article from HowStuffWorks.

How do you start a gas turbine engine? What is the mechanism to begin the rotation of the large fan blades?

Since a torpedo cannot have an air-breathing engine like a boat, how is it propelled through the water?

Airline pilots have an amazing job with huge responsibilities. Learn what it's like to be a pilot and what it takes to make it in this highly competitive profession.

By Joel Freeman

Blimps combine the simple buoyancy of a hot air balloon with the technology of an airplane. Learn all about these lighter-than-air vehicles.

By Craig Freudenrich, Ph.D.

Hot air balloons are about as simple as flying can get - no engine, no moving parts really, and very little the pilot can do to control the vehicle. Find out what it's like to fly a hot air balloon!

By Tom Harris

Flying in a glider is about as close as you can get to soaring like a bird. Amazingly, these graceful machines manage their maneuvers without an engine. Learn how gliders fly without power.

By Marshall Brain & Brian Adkins

Black boxes help investigators determine what happened in an airplane accident. What's inside a black box and how does it record flight data?

By Kevin Bonsor & Nathan Chandler

Believe it or not, the marvel we know as the helicopter began as a Chinese top consisting of a shaft - a stick - adorned with feathers on one end.

By Tom Harris & Talon Homer

Ever gaze in wonder at the huge cranes, bulldozers, backhoes, loaders, shovels and fork lifts on a construction site? Find out all about hydraulic machines, from backyard log splitters to big construction equipment.

By Marshall Brain

A fascinating article that describes how a block and tackle (as well as levers and gears) works!

By Marshall Brain

Air taxis could make a trip to the beach or a visit with friends and relatives go from taking six hours on the highway to a quick, no-hassles plane ride. Find out how the air-taxi system will operate.

By Carolyn Snare

It's the largest passenger jet ever built -- so huge that airports have to be redesigned to accommodate it. Find out just how big the A380 is and what this type of craft means for the future of air travel.

By Ed Grabianowski

When a military aircraft is in trouble, the pilot may have to eject to save his life. Find out how this crucial escape system separates pilot from plane.

By Kevin Bonsor

Hydraulic cranes perform seemingly impossible tasks, lifting 70-ton objects with absolute ease. See the simple design behind the Herculean results.

By Kevin Bonsor

We see them all the time, but do you ever think about everything these machines do? A fire engine is a combination personnel carrier, tool box and water tanker. Learn all about this amazing 3-in-1 machine.

By Kevin Bonsor

You probably ride escalators all the time, but do you know how they move, and flatten, and keep the handrail in synch with the steps? Find out exactly what is going on inside an escalator.

By Tom Harris

In action movies, elevators regularly plummet to the basement, landing in a spectacular ball of fire. Is this possible? There are some sophisticated engineering techniques at work behind every elevator ride you take.

By Tom Harris

A radial engine has a unique setup that makes it ideal for certain applications. Find out what makes radial engines different, how they operate and where they're used.

By Marshall Brain

Length, height and wingspan are all popular ways to rank an aircraft, but truly giant planes are often judged by their maximum takeoff weight. Which plane outlifts them all?

By Julia Layton

Oil tankers carry massive amounts of oil, gasoline and other petroleum products between ports. However, crewmembers must guard against explosions, pirates and more.

By Akweli Parker