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Latest Petra Stories

Scientists Spin Cellulose Fibers That Are Stronger Than Steel
2014-06-02 12:24:56

Deutsches Elektronen-Synchrotron DESY A Swedish-German research team has successfully tested a new method for the production of ultra-strong cellulose fibers at DESY's research light source PETRA III. The novel procedure spins extremely tough filaments from tiny cellulose fibrils by aligning them all in parallel during the production process. The new method is reported in the scientific journal Nature Communications. "Our filaments are stronger than both aluminium and steel per...

nanoparticle growth
2014-03-30 06:06:44

Deutsches Elektronen-Synchrotron (DESY) Analysis allows tailoring materials for switchable windows and solar cells With DESY’s X-ray light source PETRA III, Danish scientists observed the growth of nanoparticles live. The study shows how tungsten oxide nanoparticles are forming from solution. These particles are used for example for smart windows, which become opaque at the flick of a switch, and they are also used in particular solar cells. The team around lead author Dr. Dipankar...

Shadows Of Petra Awaken Its Astronomical Orientation
2014-03-05 13:20:32

SINC During the winter solstice, the sun is filtered into the Monastery at Petra, Jordan, illuminating the podium of a deity. Just at this moment, the silhouette of the mountain opposite draws the head of a lion, a sacred animal. These are examples from a study where researchers from Instituto de Astrofisica de Canarias and CSIC (Spain) showed how celestial events influenced the orientation of the great constructions of the Nabataeans. The movement of the Sun in the skies of Petra...

Signs Of Ancient Terrace Farming Uncovered In Petra
2013-01-03 08:45:29

April Flowers for redOrbit.com - Your Universe Online A multinational archaeology team is providing new insights into successful and extensive water management and agricultural production in and around the ancient city of Petra, which is located in modern Jordan. Professor Susan Alcock of the Brown University Petra Archaeological Project (BUPAP) leads the dig. Christian Cloke, doctoral student in the Department of Classics at the University of Cincinnati, used a variety of tools and...

2013-01-03 05:02:25

Model Citizen Petra Nemcova makes her home in New York while helping others all over the world. New York, NY (PRWEB) January 02, 2013 In the new issue of Haute Living New York, we talk with supermodel Petra Nemcova, who, after narrowly escaping death during the 2004 Indian Ocean tsunami, founded the Happy Hearts Fund, a non-profit foundation dedicated to rebuilding schools and communities following natural disasters. “In situations like that you find inner strength that you never...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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