Word: freehand
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...laptop screen on the wall. It's touch-sensitive, so he can point and click on the board with his hand, navigating from urn to urn, zooming in on images when he wants to highlight a detail. He even uses his index finger to draw lines, and he sketches freehand directly on the screen when he needs to illustrate a point. When he's done, Rush can save what's on the Smart Board and instantly distribute it to every laptop in the room, so the kids can take it home to study...
...restore basic function to his left arm, Holgersen uses the Freehand System, a device that restores the ability to grasp, hold and release objects. During a seven-hour operation, surgeons at Denmark's National Hospital made incisions in Holgersen's upper left arm, forearm and chest. Eight flexible cuff electrodes, each about the size of a small coin, were attached to the muscles in his arm and hand that control grasping. These electrodes were then connected by ultrathin wires to a stimulator - a kind of pacemaker for the nervous system - implanted in his chest. The stimulator was in turn linked...
...says of the device. "I move my right shoulder and see my left hand move. But I quickly got used to it, and now it feels very natural. I don't even think about it. It has become part of me and made me more independent." Thanks to the Freehand implant, Holgersen can now hold a cup, lift a fork and grasp a pen, actions he was previously unable to perform...
...Freehand is not for everyone, though. To benefit from the device, patients must have use of a shoulder and upper arm and partial use of their hands. The technology can be fragile, too, and patients must be constantly on guard against infection around the implanted electronics. Another drawback is that the Freehand system provides no tactile feedback for things like temperature, so users also have to be careful when handling hot objects such as cigarettes or coffee. To get around this problem, Thomas Sinkjaer and colleagues at the Center for Sensory-Motor Interaction at Denmark's Aalborg University are developing...
...Draw a freehand map of the world. Fill in the capital cities, heads of state, principal industries and most important crops...