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Water Geysers on Saturn’s Moon

By Guest PostAugust 1, 2013Sciencecassini spacecraft, christophe sotin, cornell university, data, enceladus, enceladus plume, galileo, gravity, hydrocarbon composition, icy surface, instrument, ithaca, jet propulsion laboratory, linda spilker, matt hedman, moon, moon of saturn, NASA, organic material, robert brown, saturn, saturn gravity, saturnian moon, seismological signs, tiger stripes, titan, university of arizona, vims, water geysers

A new study published in Nature this week describes the forces that control the jets of water and organic material that erupt from the icy surface of Enceladus, a moon of Saturn. UA scientists contributed data to the study.

The intensity of the jets of water ice and organic molecules that shoot out from Saturn’s moon Enceladus depends on the moon’s proximity to the planet, according to data obtained by NASA’s Cassini spacecraft. The finding, detailed in the journal Nature this week, is the first clear observation that shows the Enceladus plume varies in a predictable manner. (more…)

Eye-tracking could outshine passwords if made user-friendly

By Guest PostJuly 31, 2013Technologybiometric, biometric authentication, biometric security systems, eye recognition systems, eye tracking, eye tracking signatures, identification system

It’s a wonder we still put up with passwords.

We forget our highly secretive combinations, so we frequently have them reset and sent to our cellphones and alternative email addresses. We come up with clever jumbles of letters and words, only to mess up the order. We sit there on the login screen, desperately punching in a code we should know by heart. (more…)

Evolution of monogamy in humans the result of infanticide risk

By Guest PostJuly 31, 2013Natureevolution of monogamy, infanticide, mating system, monogamy

The threat of infants being killed by unrelated males is the key driver of monogamy in humans and other primates.

The study by academics from UCL, University of Manchester, University of Oxford and University of Auckland, is the first to reveal this evolutionary pathway for the emergence of pair living. (more…)

Origins and uses of wrinkles, creases, folds

By Guest PostJuly 31, 2013Scienceanatomy, biology, brown university, creases, engineers, folds, hollow channels, huajian gao, initial strain, kyung suk kim, mazen diab, micro organs, origins, properties of surface, ruga states, ruike zhao, skin creases, teng zhang, uses of wrinkles, wrinkle phase

New research into the origins of — and structural differences between — wrinkles, creases, and folds could have applications in many fields, from flexible electronic devices to dermatology to flexible sheets that become sticky when stretched. Findings from a Brown University research group appear in Proceedings of the Royal Society A.

PROVIDENCE, R.I. [Brown University] — Engineers from Brown University have mapped out the amounts of compression required to cause wrinkles, creases, and folds to form in rubbery materials. The findings could help engineers control the formation of these structures, which can be useful in designing nanostructured materials for flexible electronic devices or surfaces that require variable adhesion. (more…)

Some volcanoes ‘scream’ at ever-higher pitches until they blow their tops

By Guest PostJuly 31, 2013Scienceeruptive cycles, harmonic tremor, small earthquakes, tremor frequency, volcanic eruption

It is not unusual for swarms of small earthquakes to precede a volcanic eruption. They can reach a point of such rapid succession that they create a signal called harmonic tremor that resembles sound made by various types of musical instruments, though at frequencies much lower than humans can hear. (more…)

Hubble spots azure blue planet

By Guest PostJuly 30, 2013Sciencealien world, colour of planet, exoplanets to earth, exotic planet, hot jupiters, planet is blue

Astronomers from the University of Exeter using the NASA/ESA Hubble Space Telescope along with an international team of researchers have, for the first time, determined the true colour of a planet orbiting another star. (more…)

Meet your 3D maker

By Guest PostJuly 30, 2013Technology3d maker, 3d printing, bar codes, culture, editor pamela woon, electronic chips, external radio frequency, id, microsoft retail stores, on the whiteboard, rfid, tags, Technology

In this episode of “On the Whiteboard,” Editor Pamela Woon goes to a workshop that features 3D printing and finds that with the Windows 8.1 update, it’s as easy as printing a Word document.

REDMOND, Wash. – July 30, 2013 – In this episode of “On the Whiteboard,” Editor Pamela Woon goes to Makerhaus and its 10,000-square-feet of fabrication prototyping – a membership workshop that features 3D printing for things such as jewelry, toys, and virtually anything you can design with 3D software. (more…)

Indian foresters learn state-of-the art methods in mid-career training at Yale

By Guest PostJuly 30, 2013Environmentamherst, career training, chadwick dearing oliver, forest policy, global context, greater boston area, ifs, indian foresters, indian officers, management, mark ashton, mary tyrrell, paul barten, pocket parks, quabbin reservoir, short course, teri university, tom wagner, university of massachusetts, urban resources initiative, uri, watershed, yale, yale myers forest

Officers of the Indian Forest Service (IFS) arrived on the Yale campus July 21 for a two-week training session on state-of-the-art concepts and practices in forestry and environmental management. The session is part of a partnership between the Global Institute of Sustainable Forestry at Yale, TERI University (The Energy and Resources Institute in India), and the Indira Gandhi National Forest Academy acting under the auspices of the Indian Ministry of Environment and Forests.

The Indian Ministry of Environment and Forests conceived the idea of holding short, intensive training sessions as a way of injecting fresh ideas, tools, and techniques into its forest service. The Yale Global Institute has participated from the beginning of the program, making this the fourth year, and the sixth group of Indian foresters welcomed to campus. (more…)

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