Victor Korn

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Gum disease may have ties to Alzheimer’s

Oral bacteria from poor dental hygiene have been linked to brain tissue degeneration, a finding that shows a potential association between gum …

A Cyberpunk Skyscraper And Other Amazing Images From This Week

Want To Read Others' Thoughts? Try Reading Literary Fiction

Your ability to "read" the thoughts and feelings of others could be affected by the kind of fiction you read.<p>That's the conclusion of a study in the journal <i>Science</i> that gave tests of social perception to people who were randomly assigned to read excerpts from literary fiction, popular fiction or …

What Happens If An Astronaut Floats Off In Space?

In short: he's in trouble.<p>In the film <i>Gravity</i>, which opens this month, two astronauts are on a spacewalk when an accident hurtles them into the void. So what would actually happen if you went, in NASA's terminology, "overboard"?<p>NASA requires spacewalking astronauts to use tethers (and sometimes …

APOD: October Aurora in Prairie Skies (2013 Oct 05) Image Credit & Copyright: Randy Halverson http://apod.nasa.gov/apod/ap131005.html Explanation: Wind and spaceweather are transformed in this haunting night skyscape. The prairie windmill and colorful auroral display were captured on October 1, from central South Dakota, USA, as a good season for aurora hunters came with longer autumn nights. From green to rarer reddish hues, the northern lights are sparked by the geomagnetic storms caused by solar activity. These extend far above the cloud bank to altitudes well over 100 kilometers, against the backdrop of distant stars in the northern night. Visual double star Mizar, marking the middle of the Big Dipper's handle, is easy to spot at the left edge of the frame. The dipper's North Celestial Pole pointers Merak and Dubhe line up vertically near picture center. http://www.facebook.com/dakotalapse http://www.dakotalapse.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131005 #APOD

Thermoacoustic Headphones Make Sound With Hot Nanotubes

Just call it "Heats by Dre."<p>Inside these earbuds, something big is happening on a very small scale. Set on a tiny lattice of silicon, electrified nanotubes of carbon are rapidly warmed up and cooled down, producing sound waves as their temperature fluctuates. The technique is known as …

Headphones

This Water Droplet Maze Is Mesmerizing

Watch it in action. Plus: learn something about the Leidenfrost effect.<p>Have you heard of the Leidenfrost effect? If not, it's about to be your favorite effect. If yes, same.<p>The basic idea is, when a liquid comes in contact with something really hot--about twice as hot as the liquid's boiling point, …

Researchers Study Chicken Nuggets, Find Mostly Nerves, Bone, Fat

A new study found that chicken nuggets mostly contain bone, organ parts, blood vessels, and nerves, containing 50 percent or less muscle tissue, the …

McDonald's

Rise and shine: the daily routines of history's most creative minds

One morning this summer, I got up at first light – I'd left the blinds open the night before – then drank a strong cup of coffee, sat near-naked by an open window for an hour, worked all morning, then had a martini with lunch. I took a long afternoon walk, and for the rest of the week experimented …

Nightwatch: The Haunting Light Painted Nightscapes of Noel Kerns

Dallas-based photographer Noel Kerns specializes in capturing haunting night scenes of ghost towns, decommissioned military bases, and industrial …

Top 4 keys to mastering moon phases

The most important key is to think of the moon as a world in space, with a day and night side.<p><b>Why does the moon seem to change its shape every night?</b> …

BigPic: A Model Of BepiColombo, The Spacecraft That'll Explore Mercury

Europe and Japan are on a mission to Mercury. The BepiColombo mission is expected to launch in 2015, and arrive in Mercury by 2022. Carried in a vessel creatively dubbed the "composite spacecraft," two Mercury orbiters will separate and go into different orbits. One, made by the European Space …

Space

APOD: Hubble Remix: Active Galaxy NGC 1275 (2013 Oct 06) Image Credit: Data - Hubble Legacy Archive, ESA, NASA; Processing - Al Kelly http://apod.nasa.gov/apod/ap131006.html Explanation: Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. Wild-looking at visible wavelengths, the active galaxy is also a prodigious source of x-rays and radio emission. NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. This color composite image, recreated from archival Hubble Space Telescope data, highlights the resulting galactic debris and filaments of glowing gas, some up to 20,000 light-years long. The filaments persist in NGC 1275, even though the turmoil of galactic collisions should destroy them. What keeps the filaments together? Observations indicate that the structures, pushed out from the galaxy's center by the black hole's activity, are held together by magnetic fields. Also known as Perseus A, NGC 1275 spans over 100,000 light years and lies about 230 million light years away. http://www.kellysky.net/ http://heritage.stsci.edu/2008/28/ http://hubblesite.org/news/2008/28 http://spacetelescope.org/news/heic0817/ http://chandra.harvard.edu/photo/2008/perseus/ http://dx.doi.org/10.1038/nature07169 http://arxiv.org/abs/0808.2712 Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131006 #APOD