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 Shovels Work

Antique steam shovels can still be found rusting away at old mining sites or painstakingly restored and on display in museums the world over. How much do you know about these mammoth-sized digging tools?

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  • How Van de Graaff Generators Work

    How Van de Graaff Generators Work

    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. See more »

  • Inside a Competition Tractor

    Inside a Competition Tractor

    Tractor pulls are popular displays of raw horsepower.The trucks used in these competitions use engines that are capable of producing thousands of horsepower. See more »

  • Oops! The Great Mechanical Recalls Quiz

    Oops! The Great Mechanical Recalls Quiz

    Some of the most notorious product recalls have involved medicines, such as Tylenol and Vioxx. But the makers of cars, coffee makers and computers sometimes have to offer mea culpas, too. How total is your recall on these factory flaws? See more »

  • Quiz: Robots That Move Us

    Quiz: Robots That Move Us

    Whether they're helping out on an assembly line, steering cars down the highway or trundling around a combat zone, robots that move us are everywhere. Now we challenge you to move us with your vast knowledge. Hey, no help from the artificial intelligence in the corner! See more »

  • Rolling Reactions: The Car Chem Quiz

    Rolling Reactions: The Car Chem Quiz

    Cars reveal a thing or two about chemistry, and we have the quiz to prove it. So hop in, buckle up and let's see if your car chem knowledge leaves you looking like Greased Lightning or blows up in your face. See more »

  • The Ultimate Hydraulic Machines Quiz

    The Ultimate Hydraulic Machines Quiz

    Hydraulic equipment is amazing in its strength and agility. From common backyard machines to the huge machines you see on construction sites, hydraulics make quick work of even the most difficult tasks. How much do you know about hydraulic machines? See more »

  • What is a punkin chunkin?

    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? See more »

  • How are people able to breathe inside a submarine?

    How are people able to breathe inside a submarine?

    How are people able to breathe inside a submarine? What do they do to keep the air breathable? See more »

  • How do the engines breathe in diesel submarines?

    How do the engines breathe in diesel submarines?

    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? See more »

  • How do they get the balls in ball bearings so perfectly round and smooth?

    How do they get the balls in ball bearings so perfectly round and smooth?

    Ball bearings can be found in a wide variety of machines and gadgets. If you take a look at one of them you may notice how perfectly smooth they feel and appear. How do they get like that? Find out how ball bearings are created in this article. See more »

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