These images (see link) of the rim of the Hellas basin on Mars were obtained by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express spacecraft.
The scenes show a portion of the northern region of the Hellas basin at 29° S latitude and 68° E longitude. They were taken during orbit 488 with a resolution of 18.3 metres per pixel. North is to the right.
The Hellas basin is located in the Martian southern hemisphere, and is actually a giant impact crater. It is abo
Airplanes generate trailing wake vortices which can be dangerous for following aircraft, especially on takeoff and landing. An onboard laser measuring device scans the air space in front of the plane, recognizes turbulence and will inform the pilot.
The volume of air traffic is constantly rising – many air routes are already overloaded. Frequent delays are encountered when machines are taking off and landing at major airports. The frequency of aircraft cannot be increased because they have t
In automotive catalytic converters and industrial exhaust gas filters, porous materials play a crucial role: they filter and break down hot waste gases. It is now possible to process virtually all metal alloys into fibers which can be used to make open-pored sintered materials.
The requirements to be met by a coffee filter are simple: it must retain the powder and not be decomposed by the hot water. The conditions for dealing with exhaust gases in industrial processes are much tougher: tem
Modern optical microscopes are high-tech devices with complex functions and operations. So that not just specialists can get the best out of these advanced instruments, Leica have produced a microscope which automatically selects the optimal combination of optical components.
Many modern items of equipment can do too much. It is not only when operating a video recorder or a mobile phone that you can quickly end up in the depths of some menu full of unclear functions. New features are overlo
The focal length of a lens means that a camera has to have a certain thickness – or so we might think. Insect eyes show that this need not be the case: A camera chip based on the compound-eye principle can be used for person recognition and is as thin as paper.
If people were insects, books on optics would certainly look different. The camera illustrated as the technical equivalent next to a cross-section of the eye with just one lens, one iris and one retina would not be of the conventiona
The Airbus A380 will be the world’s biggest passenger airplane and it is already a perfect example of global cooperation. The Fraunhofer IML has ensured that the Stade plant near Hamburg will benefit from an optimal material flow and logistics concept.
555 passengers on two decks will be able to travel for 14,800 kilometers non-stop in the Airbus A380 – almost from one end of the Earth to the other. The air route from Berlin to Wellington in New Zealand, for example, covers a distance of abo
Biologists from the University of Arizona in Tucson are teaming up with health officials from the Mexican state of Sonora to learn more about the mosquitoes that carry dengue and West Nile viruses and about the disease-causing organisms.
The reported number of dengue fever cases in Sonora has been increasing in the last several years, and the disease appears to be moving north. The dengue fever season in Sonora is seasonal and peaks mid-October, after the summer rainy season.
The
University of Toronto microbiologists have used pattern recognition software to discover the function of yeast genes essential to cell life – knowledge that could help scientists determine what causes cells to die, as well as what they need to live.
“Given the similarities between the yeast and human genomes, our work should promote advances in genomics research in both yeast and humans,” said Professor Timothy Hughes of U of T’s Department of Medical Genetics and Microbiology, who led the
As previously informed, Vestas has experienced a series of problems with the operation of the offshore project Horns Reef located in the North Sea, 15 kilometres off the shore near Esbjerg located on the Danish west coast.
Harsh environment
The environment at Horns Reef is harsh and it has been ascertained that all transformers and a number of generators had to be changed. In close and constructive collaboration with the customer, the Danish utility Elsam, Vestas and ABB a
CNRS and Inserm research scientists at the Institut Curie have shed new light on the function of huntingtin, the protein whose mutation underlies Huntington ’s disease. This neurodegenerative disease,like Alzheimer ’s or Parkinson ’s,is characterized by the abnormal death of certain neurons.
The scientists have discovered that huntingtin,like a “booster rocket “,accelerates the transport of a neuron survival factor. When huntingtin is mutated, the “booster rocket ” malfunctions, transport
A new report in top science magazine “Nature” shows that rising carbon dioxide or CO2, is causing a massive increase in dissolved chemicals in Britain’s waters. The chemicals (called DOC or dissolved organic carbon) could harm our health and accelerate current rises in atmospheric CO2 levels.
The discovery was made by a team led by wetland researcher Dr Chris Freeman, Royal Society Industry Fellow at the University of Wales, Bangor, who explained: “We’ve known for some time that CO2 levels
For many years astronomical images from the world’s telescopes were reserved for an elite of astronomers and technical people. Now anyone with a desktop computer running Adobe® Photoshop® software can try their hand at crafting astronomical images as beautiful as those from the Hubble Space Telescope. A free software plug-in, released today, makes a treasure trove of archival astronomical images and spectra from the NASA/ESA Hubble Space Telescope, the European Southern Observatory’s Very Large Tele
Study performed through Syracuse Center of Excellence in Environmental and Energy Systems calls for an established test procedure to evaluate the effectiveness of VOC removal
A new study conducted through the Center of Excellence in Environmental and Energy Systems (CoE) to evaluate the performance of room air cleaners has found that no single air-cleaning unit effectively removes all volatile organic compounds (VOCs) from the air and underscores the need to establish standards, test proce
A University of Arkansas researcher and his colleagues have discovered a new mechanism that regulates the interaction of proteins in cell membranes. This discovery may lead to more efficient drug screening and possibly different methods for fighting infections.
Roger Koeppe, University Professor of chemistry and biochemistry, Thomas Suchnya, Frederick Sachs and Phillip Gottlieb of SUNY Buffalo and Sonya Tape and Olaf Andersen of Weil Medical College of Cornell University report their findi
Observations challenge standing view of how and when galaxies formed
A rare glimpse back in time into the universe’s early evolution has revealed something startling: mature, fully formed galaxies where scientists expected to discover little more than infants.
“Up until now, we assumed that galaxies were just beginning to form between 8 and 11 billion years ago, but what we found suggests that that is not the case,” said Karl Glazebrook, associate professor of physics and
A powerful new instrument heading to space this Saturday is expected to send back long-sought answers about greenhouse gases, atmospheric cleansers and pollutants, and the destruction and recovery of the ozone layer. Only a cubic yard in size but laden with technical wizardry, the High-Resolution Dynamic Limb Sounder (HIRDLS) will measure a slew of atmospheric chemicals at a horizontal and vertical precision unprecedented in a multi-year space instrument.
Scientists at the National Center f
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