DEVICES

Ever wondered how that thing works? Explore the inner workings of many common devices and inventions, as well as those that aren't so common, such as compasses, gyroscopes and bug zappers.
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How Rail Guns Work

Rail guns leave gunpowder-based weapons in the dust (one can hit a target 250 miles away in six minutes). So why isn't the military using them? Find out how rail guns can be used and learn about the limitations of this technology.

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  • 10 Innovations Nominated for 2010 Edison Awards

    10 Innovations Nominated for 2010 Edison Awards

    The American Marketing Association created the Edison Awards to honor inventors and their innovations. With many great ideas to choose from, what are some of the nominees for 2010? See more »

  • 10 Inventions by Thomas Edison (That You've Never Heard Of)

    10 Inventions by Thomas Edison (That You've Never Heard Of)

    It's common knowledge that Thomas Edison invented the incandescent light bulb and the phonograph, but did you know he also developed concrete furniture and a phone to communicate with the dead? See more »

  • 5 Amazing Innovations that Have Won Edison Awards

    5 Amazing Innovations that Have Won Edison Awards

    Every now and then, a new product bursts onto the scene, causing a sensation among consumers and leaving an indelible mark on a given industry. These amazing innovations are contenders for an Edison Award. See more »

  • 5 Things You Didn't Know About the Metric System

    5 Things You Didn't Know About the Metric System

    In most of the world, the metric system reigns supreme, and with its convenient prefixes and correlation of units, it's easy to see why the system caught on. But what don't you know about metric? See more »

  • How Biomechatronics Works

    How Biomechatronics Works

    In the TV series "The Six Million Dollar Man," scientists restore a crippled test pilot who lost legs one arm and an eye. While this is total fiction, an emerging field known as biomechatronics is coming close to this vision. See more »

  • How Biometrics Works

    How Biometrics Works

    With the help of Q, James Bond can breeze through a security system that requires the villain's irises, voice and handprint. Biometrics isn't just for the movies. Real-life businesses and governments are using it. Check it out. See more »

  • How BrainPort Works

    How BrainPort Works

    Learn all about BrainPort, a device for sensory substitution by electrotactile stimulation. See more »

  • How can someone control a machine with her thoughts?

    How can someone control a machine with her thoughts?

    The Rehabilitation Institute of Chicago introduced a new bionic arm that can be controlled by reading a person's thoughts. How does this technology work? Can you control a machine with thoughts? Learn about the bionic arm in this article. See more »

  • How CAT Scans Work

    How CAT Scans Work

    CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides. See more »

  • How Crossbows Work

    How Crossbows Work

    The crossbow, a weapon popular with Wookiees, vampire slayers and some modern hunters, looks like a cross between a bow and a rifle. Read about it’s fascinating history and uses. See more »

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