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

Wormholes In Art Trace Species Through Time and Space

Wormholes aren't just for time travel or teleportation anymore. Some very real and ancient wormholes are now helping to trace the distribution of insect species and artwork.A biologist found himself in the unlikely world of centuries-old European woodblock print art...

November 20, 2012 — Katherine Harmon

Pharmacies Dispense Meds Even after Docs Stop Prescription

When doctors take patients off of a prescription medicine, it is often for a good reason. But pharmacists don't always get the memo. A new study finds that more than 1 in 100 discontinued prescriptions were filled by the pharmacy anyway, putting some patients at serious risk.In the U.S., pharmacists filled more than 3.7 billion prescriptions in 2011...

November 19, 2012 — Katherine Harmon

Come Hang Out with Some World Changing Ideas

Oil that cleans water. Pacemakers powered by our own blood. Drones that can spy on you in your backyard. Scientific American has chosen these and seven other innovations as the leading developments in 2012 that could ultimately change our world...

November 19, 2012 — Mark Fischetti

A Presidential Pythagorean Proof

James Abram Garfield was born on this day, November 19, in 1831. Had an unstable, delusional stalker's bullets and nineteenth-century medical "care" not cut short his life just six months into his presidency, he would be 181 today (more on that later)...

November 19, 2012 — Evelyn Lamb

Strange Signal at Galactic Center-Is It Dark Matter?

Are there dark doings near the center of the Milky Way? That may be so when it comes to the collision of dark matter particles. Although such particles are invisible, we could still theoretically see the mess they make when they collide...

November 18, 2012 — Daisy Yuhas

All-of-the-Above Energy Strategy Trumps Climate Action

"I am a firm believer that climate change is real, that it is impacted by human behavior and carbon emissions. And, as a consequence, I think we've got an obligation to future generations to do something about it." So spoke newly re-elected President Barack Obama at a press conference on November 14 when questioned by a reporter.So what is Obama going to do about it?...

November 16, 2012 — David Biello

Print It: 3-D Bio-Printing Makes Better Regenerative Implants

Desktop 3-D printers can already pump out a toy trinket, gear set or even parts to make another printer. Medical researchers are also taking advantage of this accelerating technology to expand their options for regenerative medicine...

November 15, 2012 — Katherine Harmon

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