Wahyu Costanza

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Four Weird Ways Animals Sense the World

Creatures like crabs, butterflies, snakes, and octopuses sense the world in unusual ways.<p>When humans sniff in order to smell something, we draw a quick puff of air into our nostrils and over chemoreceptors in our nasal cavity. But octopuses, butterflies, and other animals don't have noses like …

Shelf Life: 33 Million Things | @GrrlScientist

Natural history museums are many things, but they are not peopled exclusively with dry, dusty old white men, rooting around in dry, dusty old drawers, examining dry, dusty old dead things.<p>Natural history museums are many things <i>but</i> they are not, as I was sometimes told, peopled exclusively with dry, …

APOD: The Double Dust Disks of HD 95086 (2014 Nov 17) Illustration Credit: Spitzer Space Telescope, JPL, NASA http://apod.nasa.gov/apod/ap141117.html Explanation: What do other star systems look like? To help find out, astronomers are carrying out detailed observations of nearby stars in infrared light to see which have dust disks that might be forming planets. Observations by NASA's Spitzer Space Telescope and ESA's Herschel Space Observatory have found that planetary system HD 95086 has two dust disks: a hot one near the parent star and a cooler one farther out. An artist's illustration of how the system might appear is featured here, including hypothetical planets with large rings that orbit between the disks. The planets may have created the large gap between the disks by absorbing and deflecting dust with their gravity. HD 95086 is a blue star about 60 percent more massive than our Sun that lies about 300 light years from Earth and is visible with binoculars toward the constellation of Carina. Studying the HD 95086 system may help astronomers better understand the formation and evolution of our own Solar System as well as the Earth. http://www.spitzer.caltech.edu/ http://www.jpl.nasa.gov/ http://www.nasa.gov/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=141117 #APOD

APOD: LDN 988: Dark Nebula in Cygnus (2014 Nov 20) Image Credit & Copyright: Bob Franke http://apod.nasa.gov/apod/ap141120.html Explanation: Obscuring the rich starfields of northern Cygnus, dark nebula LDN 988 lies near the center of this cosmic skyscape. Composed with telescope and camera, the scene is some 2 degrees across. That corresponds to 70 light-years at the estimated 2,000 light-year distance of LDN 988. Stars are forming within LDN 988, part of a larger complex of dusty molecular clouds along the plane of our Milky Way galaxy sometimes called the Northern Coalsack. In fact, nebulosities associated with young stars abound in the region, including variable star V1331 Cygni shown in the inset. At the tip of a long dusty filament and partly surrounded by a curved reflection nebula, V1331 is thought to be a T-Tauri star, a sun-like star still in the early stages of formation. http://bf-astro.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=141120 #APOD

APOD: Star Formation in the Tadpole Nebula (2014 Nov 18) Image Credit: WISE, IRSA, NASA; Processing & Copyright : Francesco Antonucci http://apod.nasa.gov/apod/ap141118.html Explanation: Dusty emission in the Tadpole nebula, IC 410, lies about 12,000 light-years away in the northern constellation Auriga. The cloud of glowing gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893. Formed in the interstellar cloud a mere 4 million years ago, bright cluster stars are seen all around the star-forming nebula. Notable near the image center are two relatively dense streamers of material trailing away from the nebula's central regions. Potentially sites of ongoing star formation in IC 410, these cosmic tadpole shapes are about 10 light-years long. The featured image was taken in infrared light by NASA's Wide Field Infrared Survey Explorer (WISE) satellite. http://www.nasa.gov/mission_pages/WISE/main/ http://irsa.ipac.caltech.edu/Missions/wise.html http://www.astrobin.com/users/FrankAntonucci/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=141118 #APOD

Leonid meteor shower 1833

Engraving of the November 1833 Leonid meteor shower. This year’s Leonids peak on the morning of November 18.<p>Every year around mid-November, debris …

Meteor Showers

Google's Massive New Android Update Just Launched, And There May Already Be A Big Problem With It

According to Google's forum for reporting bugs within Android, some developers are reporting that their devices running Android 5.0 won't connect to Wi-Fi networks.<p>The thread started on Oct. 17 with the most recent post published on Nov. 13, as blog Phone Arena spotted.<p>The developer that filed the …

APOD: Too Close to a Black Hole (2014 Oct 26) Image Credit & Copyright: Alain Riazuelo http://apod.nasa.gov/apod/ap141026.html Explanation: What would you see if you went right up to a black hole? Featured is a computer generated image highlighting how strange things would look. The black hole has such strong gravity that light is noticeably bent towards it - causing some very unusual visual distortions. Every star in the normal frame has at least two bright images - one on each side of the black hole. Near the black hole, you can see the whole sky - light from every direction is bent around and comes back to you. The original background map was taken from the 2MASS infrared sky survey, with stars from the Henry Draper catalog superposed. Black holes are thought to be the densest state of matter, and there is indirect evidence for their presence in stellar binary systems and the centers of globular clusters, galaxies, and quasars. http://www2.iap.fr/users/riazuelo/index.php Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=141026 #APOD

APOD: Philae Attempts Comet Nucleus Landing (2014 Nov 12) Image Credit: ESA http://apod.nasa.gov/apod/ap141112.html Explanation: Today humanity will make its first attempt to land a probe on the nucleus of a comet. As the day progresses, the Philae (fee-LAY) lander will separate from the Rosetta spacecraft and head down to the surface of Comet 67P/Churyumov–Gerasimenko. Since the texture of the comet's surface is unknown and its surface gravity is surely low, Philae will then attempt to harpoon itself down, something that has never been done before. Featured here is an artist's illustration of dishwasher-sized Philae as it might look on Comet Churyumov–Gerasimenko's surface, along with explanation balloons detailing onboard scientific instruments. Many people on a blue planet across the Solar System will be eagerly awaiting news and updates. Whether Philae actually lands, whether it lands on a smooth patch, whether the harpoons take hold, and how far the robotic lander sinks into the surface should all become known as events unfold today. http://www.esa.int Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=141112 #APOD

Rosetta mission places Philae lander on its comet

As of Thursday morning, November 13 – after initially failing to attach to the surface – Philae is now stable and is sending back pictures.<p>Ten years …

This Scientist Is Building A Robot Version Of Himself, And It's The Most Uncanny Thing Ever

Ishiguro is the director of the Intelligent Robotics Laboratory in Osaka, Japan and one of the world's leading roboticists. For nearly a decade, Ishiguro has dedicated his life to creating the most lifelike android possible.<p>Once at the lab, Whitton was struck by the casualness of Ishiguro's …

How Bill Gates Thinks

Author Steven Johnson talks to the engineer turned philanthropist about the future, technology, ice, capitalism, and optimism.<p>When interesting people hang out, interesting things tend to happen. So when we found out that Steven Johnson, author of <i>Where Good Ideas Come From</i> and <i>The Ghost Map</i> was going …

A Time Machine For Smells

This installation transports visitors back in time to the space’s previous life as a factory through the smells of metal, sweat, and grease.<p>Smells are deeply evocative. They can conjure up memories that are years or even decades old. In this spirit, one recent design school graduate is attempting …

Light Bulbs