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Sleep Hits the Reset Button for Individual Neurons

Electrical impulses travel up a neuron to branching dendrites, providing a neural tune-up. A little shuteye refreshes.Right, but what does that really mean?Not talking here about leaping out of bed ready for a five-mile run upon awakening, but rather about what's happening at the level of individual brain cells deep inside your head.A new study by R.

STAFFMarch 22, 2013 — Gary Stix

How a Martian Goddess Changed My Mind About Copyright

Creative Commons Habits Are Hard to BreakCreative Commons Licences are Good Things, in my estimation. I've had one on my personal art blog The Flying Trilobite since almost the very beginning.There are different grades of Creative Commons Licences (CCL), and like many artists, I've stuck with the most restrictive one.

March 22, 2013 — Glendon Mellow

Physicists Debate the Many Varieties of Nothingness

What is nothing? Sounds like a simple question— nothing is simply the absence of something, of course —until you begin to think about it. The other night the American Museum of Natural History hosted its 14 th annual Asimov Memorial Debate, which featured five leading thinkers opining (and sparring, sometimes testily, but more on that later) about the nature of nothing.“Nothing is the most important part of the universe,” said Lawrence Krauss, a physicist at Arizona State University and author of the recent “A Universe from Nothing: Why There is Something Rather than Nothing.” Of course we can imagine the (mostly) empty space between galaxies as being a sort of nothing.

March 22, 2013 — Michael Moyer

Bora's Picks (March 22nd, 2013)

Begin at the beginning by Kathleen Raven: Where do you begin the story of genetically modified food? At a modern beginning, with Augustinian monk Gregor Mendel, arguably the father of genetics as we know it today?

STAFFMarch 22, 2013 — Bora Zivkovic

There goes the neighborhood

(Ed. note: This post previously appeared on our Sleights of Mind Blog) Change blindness, our failure to detect changes in a scene that should have been (but weren't) obvious, is a common occurrence not only on the magic stage, but it in real life, too.The San Francisco Exploratorium has now produced a spectacular demonstration of cumulative change blindness.

March 21, 2013 — Susana Martinez-Conde

#SciAmBlogs Thursday - Dog Spies, Girl Scouts, Pet Trade, Moral Paradox, Tiniest Microbe, Human-Teeth Fish, Mimic Octopus, and more.

- Stephanie Swift - Making Pretty, Meaty, Friendly Animals  - Julie Hecht - Spying on Dogs: Intrigue, drama and science  - Jennifer Ouellette - Walking the Planck: Our Lopsided Universe  - Bonnie Swoger - On Girl Scouts, glaciers, and great women  - Becky Crew - The sheepshead fish has human teeth, but it’s okay because it won’t give you a psychedelic crisis  - Jennifer Frazer - What The World’s Tiniest Free-Living Microbe Is Doing In You  - Katherine Harmon - Mimic Octopus Makes Home on Great Barrier Reef  - John R.

STAFFMarch 21, 2013 — Bora Zivkovic

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20% off Scientific American Health & Medicine

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