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Modern industrial robots are true marvels of engineering. A robot the size of a person can easily carry a load over one hundred pounds and move it very quickly with a repeatability of +/-0.006 inches. Furthermore these robots can do that 24 hours a day for years on end with no failures whatsoever. Though they are reprogrammable, in many applications (particularly those in the auto industry) they are programmed once and then repeat that exact same task for years.
A six-axis robot like the yellow one below costs about $60,000. What I find interesting is that deploying the robot costs another $200,000. Thus, the cost of the robot itself is just a fraction of the cost of the total system. The tools the robot uses combined with the cost of programming the robot form the major percentage of the cost. That's why robots in the auto industry are rarely reprogrammed. If they are going to go to the expense of deploying a robot for another task, then they may as well use Click here to read
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A number of researchers have embraced the idea of miniature robots working together in swarms. Doug Adkins and Ed Heller developed the robot at left at Sandia National Lab. At 1/4 cubic inch and weighing less than an ounce, it is possibly the smallest autonomous untethered robot ever created. Powered by three watch batteries, it rides on track wheels and consists of an 8K ROM processor, temperature sensor, and two motors that drive the wheels. Enhancements being considered include a miniature camera, microphone, communication device, and a chemical micro-sensor.Click here to read

Some entertainment robots are not much more than rolling, remote-controlled speaker phones with video camera "eyes." They can wander around at parties and play pre-recorded jingles or display scrolling messages to promote a company's products or distribute promotional literature.
Florida Robotics makes robots like these. They also make more complex robots that have the capability to talk with on-lookers and include fiber optic hair, remote controlled water guns, on-board video camera and transmitter (robot can send video of what he sees to remote monitor or video wall), sound effects and smoke.
Disney makes use of a Florida Robotics robot called "X1846" at Walt Disney World in Orlando, Florida. X1846 serves drinks there. Heck, I'll take a robot that can bring me a soda. Click here to read
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