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Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Has Mariusz Ratajczak Found the Holy Grail of Stem Cells?

So many controversies about stem cells have flared and died away over the past decade that it can be hard to keep track of them all. The most recent contretemps, as evidenced by reports in the scientific press here, here and here, is about an exceedingly rare (and perhaps non-existent) group of diminutive cells called [...]..

July 25, 2013 — Christine Gorman

Introducing Imperceptibly Thin Electronics

It's entirely possible that the future of wearable computing looks more like Saran Wrap than Google Glass. Already, scientists have developed circuits you can wear like temporary tattoo and thin, flexible silicon-based devices that dissolve in water...

July 24, 2013 — Seth Fletcher

Zombie Tits, Ungifted and Animal Wise Authors Win Scientific American s Summer Reading Poll

Join our G+ Hangout On Air at noon today (Friday, July 26) with the three winning authors, here:G+ Hangout on Air with Virginia Morell, Rebecca Crew and Scott Barry Kaufman, hosted by SA blogger Joanne Manaster The votes are in for Scientific American’s poll in which we asked readers to choose their favorite authors from our list of the best summer science books of 2013.We are excited to announce our three winners! Becky Crew, author of Zombie Tits, Astronaut Fish and other Weird CreaturesScott Barry Kaufman, author of Ungifted: Intelligence RedefinedVirginia Morell, author of Animal Wise: The Thoughts and Emotions of our Fellow CreaturesAll three authors are set to join us live for a Google Plus Hangout on Air at noon Eastern on Friday, July 26...

July 22, 2013 — Bryan Bumgardner

5 (Scientific) Reasons to Stay Single This Summer

Photo credit: Flickr/blgrssby For better or worse, humans do not have a distinct “mating season.” Healthy females ovulate every month, which means that mating too can take place any time of year...

July 19, 2013 — Caitlin Shure

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