Sphero is built by a company called Orbotix, and its co-founder, Ian Bernstein, says that Sphero is the next generation in gaming systems. You’ve got your old-school Atari, NES, and even PlayStation, with their wired controllers. Then you’ve got the Nintendo Wii with its magic wand and the Xbox and its Kinect, which took gaming […]
But before we move on, let’s clarify: Digital TV (DTV) and HDTV don’t have the same meanings, even though they’re sometimes used interchangeably in casual conversation. DTV refers to the manner in which something is broadcast; HDTV refers to the format it’s broadcast in. DTV can also be broadcast through digital signals in other formats,
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There are two types of anti-sleep alarms. The first type of alarm is built right into the car and uses sensors, cameras and other high-tech tricks to discern a driver’s fatigue and correct the problem accordingly. The second type fits over the driver’s ear and sounds an alert when the driver starts to fall asleep.
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Time-telling tools are everywhere these days. Think about the number of mobile devices, clocks on computer sidebars and car radio displays you see before lunch on any given workday; there are plenty of ways to stay on top of the time, it seems. But there’s something about the face of an elegant wristwatch that just
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Well, if history can repeat itself, so can prehistory, even comic strip prehistory. The Solowheel from Inventist, Inc. is simultaneously an advanced form of low-energy, zero-emission, ultra-portable transportation and a modern version of Thor’s prehistoric wheel from “B.C.” Not that self-balancing people movers are anything new, even in modern times. The best known product in
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What is a Pager? A pager is a very simple radio that listens to just one station all of the time. A radio transmitter broadcasts signals over a specific frequency. All of the pagers for that particular network have a built-in receiver that is tuned to the same frequency broadcast from the transmitter. The pagers
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Cell Phone Jamming Basics Disrupting a cell phone is the same as jamming any other type of radio communication. A cell phone works by communicating with its service network through a cell tower or base station. Cell towers divide a city into small areas, or cells. As a cell-phone user drives down the street, the
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Understanding the CD: Material As discussed in How Analog and Digital Recording Works, a CD can store up to 74 minutes of music, so the total amount of digital data that must be stored on a CD is: 44,100 samples/channel/second x 2 bytes/sample x 2 channels x 74 minutes x 60 seconds/minute = 783,216,000 bytes
In consumer optical products — most commonly cameras — aperture describes the size of the hole that lets light into a device. Cameras use mechanical diaphragms to control how much light passes into the camera body and strikes the image sensor or film. That diaphragm works a lot like the irises in your eyes; it
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As with non-WiFi cameras, your choice of camera will be dependent on how you plan to use it. WiFi-enabled point-and-shoot cameras retail for a little bit more than their plug-and-play counterparts, from about $200 on up. As of early 2010, no WiFi SLR cameras were available; however, by using a WiFi-enabled SD card called an
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