PASADENA, Calif. - Walter Mueller knows his Transformers. The 32-year-old has been collecting the robot toys for more than 20 years. He even has one of the brand's main characters, Optimus Prime, ...
We’re not quite at “The Jetsons” level of technology, where every home has a robot maid or butler — but robots can already make themselves useful around the house, from cleaning the windows to mowing ...
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