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Everything Earth Science
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Written by Everything Science
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Jun 13, 2006 at 12:00 AM |
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Last year was the most destructive hurricane season in history and this year forecasters are expecting at least 9 hurricanes, with 5 of them being major ones. With these recent years being such active hurricane seasons, why does it seem like the U.S. is getting hammered by such horrific storms?
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| With these recent years being such active hurricane seasons, why does it seem like the U.S. is getting hammered by such horrific storms? Some scientists say it's part of a naturally occurring cycle while others have made the claim global warming is to blame. |
Some scientists say it's part of a naturally occurring cycle, while others have made the claim global warming is to blame. Two of the foremost weather and ocean scientists believe that this is all part of the cycle of nature.
Also, after analyzing data, they believe that the salinity and currents of the Atlantic Ocean play a large role in the formation of hurricanes on the East and Gulf Coasts.
The latest calculations anticipate that this coming season there's an 81 percent chance of a major hurricane. While right now these numbers are predictions, they are based on science and research - so it never hurts to be prepared.  (3) Comments posted about this in the forum
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Everything Physical Science
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Written by Everything Science
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Jun 06, 2006 at 12:00 AM |
Scientists in the joint study group of Max-Planck-Institut für Plasmaphysik (IPP) and Berlin’s Humboldt University (HUB) have generated ball-lightning in the laboratory - or, to be more precise, ball-lightning-like plasma clouds. The physicists produce luminous plasma balls above a water surface which have lifetimes of almost half a second and diameters of 10 to 20 centimetres.
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| A ball-lightning-like plasma cloud is produced in an underwater discharge. (Photo: D. Lange, IPP) |
Ball-lightning is described as a luminous phenomenon occurring during thunderstorms. It is a mystery, however, that they should be visible not as a brief flash, i.e. just for microseconds, but exist for several seconds, i.e. a hundred thousand times as long as a flash of lightning. Besides such famous figures as the Roman philosopher Seneca, Pliny the Elder, Charlemagne and Henry II of England, in modern times the Nobel Prize winners in physics, Niels Bohr and Pjotr Kapitza, claim to have observed this phenomenon. Less renowned observers also report unexpected encounters with ball-lightning; the internet features more than a million entries on the subject. On the other hand, the phenomenon is so rare that there are still no reliable data available. Accordingly, doubtful attempts at interpretation are rampant, ranging from black holes to mini nuclear explosions and esoteric explanations.
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Everything Space
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Written by Everything Science
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Jun 03, 2006 at 12:00 AM |
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This image, taken by the advanced Moon Imaging Experiment (AMIE) on board ESA’s SMART-1 spacecraft, shows the central peaks of crater Zucchius.
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| This image, taken by the advanced Moon Imaging Experiment (AMIE) on board ESA’s SMART-1 spacecraft, shows the central peaks of crater Zucchius. AMIE obtained this image on 14 January 2006 from a distance of about 753 kilometres from the surface, with a ground resolution of 68 metres per pixel. The imaged area is centred at a latitude of 61.3º South and longitude 50.8º West. Zucchius is a prominent lunar impact crater located near the southwest limb. It has 66 kilometres diameter, but only its inside is visible in this image, as the AMIE field of view is 35 kilometres from this close-up distance. Credits: ESA/SMART-1/Space-X (Space Exploration Institute) | AMIE obtained this image on 14 January 2006 from a distance of about 753 kilometres from the surface, with a ground resolution of 68 metres per pixel.
The imaged area is centred at a latitude of 61.3º South and longitude 50.8º West. Zucchius is a prominent lunar impact crater located near the southwest limb. It has 66 kilometres diameter, but only its inside is visible in this image, as the AMIE field of view is 35 kilometres from this close-up distance.
Because of its location, the crater appears oblong-shaped due to foreshortening. It lies just to the south-southwest of Segner crater, and northeast of the much larger Bailly walled-plain. To the southeast is the Bettinus crater, a formation only slightly larger than Zucchius. (0) Comments posted about this in the forum |
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Everything Space
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Written by Everything Science
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May 22, 2006 at 12:00 AM |
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One of the attractions at the ILA2006 Space Pavilion is the full-scale ExoMars rover mock-up based on an artist's impression of Europe’s next mission to Mars and the first robotic mission with the European Space Exploration Programme Aurora.
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At the International Aerospace Exhibition and Conference (ILA) in Berlin, May 2006, a new ‘International Space Village’ within groups together space agencies and industry from around the world. In the space pavilion Europe's highly ambitious Aurora programme for the future exploration of Mars and the solar system is featured, including the ExoMars rover.
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The large rover and its deployment on the surface of Mars are probably the most challenging elements of the ExoMars mission, currently slated for launch in 2011, which will search for traces of life on and underneath the surface of Mars. The rover will carry a payload, dubbed Pasteur, and will be equipped with a drilling system that will reach up to two metres below the Martian surface.
Through the mock-up and accompanying background animation the many visitors to ILA2006 could gain an appreciation of the different mission phases, the rover surface operations, as well as the rover's expected size.
While an artist's view was used to produce both the rover and its animated graphics, European industry is gearing up to design and manufacture the real thing after having conducted conceptual studies (Phase A) both for the mission and for the rover as one of the mission elements.
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