en-us Science news and technology updates from Scientific American http://www.scientificamerican.com Copyright 1996-2013 Scientific American http://www.scientificamerican.com 45 http://www.scientificamerican.com/media/logo/SAlogo_144px.gif 144 Thu, 27 Dec 2012 08:05:00 EST http://rss.sciam.com/click.phdo?i=5751c9270feda3123254baf8a330782c http://www.scientificamerican.com/article.cfm?id=a-history-of-limb-lengthening <p> </p> <a href=http://www.scientificamerican.com/article.cfm?id=a-history-of-limb-lengthening>[More]</a> Technology,History of Science,Technology,Medical Technology,Addiction & Recovery,Psychology,Ethics,Health,Society & Policy Mon, 30 Jul 2012 13:30:00 EST http://rss.sciam.com/click.phdo?i=f6ad9c351b2bcdc3dc5fad5ee054cd0f http://www.scientificamerican.com/article.cfm?id=will-swimsuit-controversy-rise-again-timeline <p> </p> <a href=http://www.scientificamerican.com/article.cfm?id=will-swimsuit-controversy-rise-again-timeline>[More]</a> More Science,More Science,Everyday Science Wed, 20 Jun 2012 08:05:00 EST http://rss.sciam.com/click.phdo?i=0821a84be984a711d6acc3422e04ff87 http://www.scientificamerican.com/article.cfm?id=rated-x-how-movie-recommendation-systems-work <p>What movie should you watch tonight? Personalized recommendation engines help millions of people narrow the universe of potential films to fit their unique tastes. These services depend on a machine-learning strategy called singular value decomposition, which breaks down movies into long lists of attributes and matches these elementsto a viewer&#39;s preferences. The technique can be extended to just about any recommendation system, from Internet search engines to dating sites.</p> <a href=http://www.scientificamerican.com/article.cfm?id=rated-x-how-movie-recommendation-systems-work>[More]</a> Technology,Computing,Communications,Technology,Everyday Science