Engines & Equipment

Engines and construction equipment are all complex machines. How do some of these engines work, and how do they help us construct buildings and structures?

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How Steam Engines Work

Steam engines powered all early locomotives, steam boats and factories -- they fueled the Industrial Revolution. Learn how the steam engine produces power!


What is a punkin chunkin?

Right around the fall months you may have heard the phrase 'punkin chunkin.' Have you ever wondered what exactly that is, or how the machines that launch pumpkins work?

How Maglev Trains Work

Magnetic levitation trains, aka Maglev trains, are becoming a popular transportation topic all around the globe. How is it that maglev trains float above the track and achieve speeds of more than 300 mph?

How Bearings Work

Bearings are the invisible heroes inside many mechanical devices. Learn about all different kinds of bearings, including 5-foot ball bearings that keep buildings on solid footing.

How Submarines Work

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.

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

It doesn't seem like twisted rope and wooden gears or levers would be able to produce the force and speed needed to launch heavy loads a great distance.

Water-cooled air conditioners work in a different way than standard air conditioners that chill the air with a compressor. If water-cooler air conditioners don't use a compressor, then how do they cool the air? Find out the answer in this article.

What is a tank engine, as in Thomas the Tank Engine?

Thomas the Tank Engine is a merchandising phenomenon that includes small wooden train sets, video tapes, books, clothing, an official Web site and tons of fan sites. But wait, what exactly is a "tank engine" anyway?

How do the engines breathe in diesel submarines? Don't internal combustion engines need a lot of oxygen to run? Where would all of this oxygen come from when the sub is underwater?

There is a force that causes a 3-pole motor to spin in one direction and not the other. What exactly is this force and how does it prevent the motor from spinning in another direction. Find out the answer to this question in this article from HowStuffWorks.