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Robots
When will we have robots?  We already have many kinds of robots!  Industries use a variety of robots and now robots are becoming morecommon in the home. 
The Husqvarna Company makes the Auto Mower, a lawn mowing robot.  The robot has sensors which detect where objects arein the yard and it maneuvers around them.  The robot can cut the grass while you relax on the patio with a glass of lemonade!  Also, Eurekanow makes robotic vacuum cleaner.  Like the robot lawn mower, the vacuum cleaner automatically detects where the furniture is and vacuums aroundit.  
Cars are becoming robots now that many cars have GPS (Global Positioning Systems) on them.  A car with a GPS system can give youdirections on how to go somewhere, tell you where the closest gas station is, and, some day in the future, will drive itself.  You will take a napor read while the car drives itself to your destination.
We even have robotic pets now.  The Sony company makes a robotic dog named Aibo thatcan sit, stand, and walk like a regular dog but can also communicate and take pictures!  Aibo understands certain commands, like a dog does,such as "Sit down", "Stand up", "Turn right", etc.  If you ask Aibo a question such as "How old are you?", its eyes will flash the number ofyears old it is.  Aibo is also a great guard dog.  He can patrol the yard and take pictures with a built in camera of anything suspicious.