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A recent study proves that the difference of landscape between the northern and the southern hemispheres of Mars, as well as the concentration of the planet's magnetic field in the southern hemisphere, could have been caused by the same giant collision.There are still intriguing questions related to our red neig... |
29 September 2008
05:59 GMT |
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At dawn, an increasing number of regular fields south of England become art, as their crop is tamped into complex patterns of rings, circles, squares and all the geometrical shapes you can think of. Crop circles have recently come into public attention, sparking many debates related mostly to their source.Technically... |
19 September 2008
05:22 GMT |
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The Earth has a magnetosphere that affects the life of most creatures on Earth. Earth's magnetism is very weak, from 0.3 gauss at the Equator to 0.7 gauss at the Poles. Researchers discovered magnetic bacteria living in the ponds and lakes, presenting a chain of magnetic crystals inside their cells. Those locate... |
24 March 2008
16:36 GMT |
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Without a map or GPS, we are completely lost in the middle of nowhere. But many species, such as the mole rat, birds, fish, amphibian, have a magnetic compass. Bats have it too, and a new research shows how these mammals can feel the polarity of a magnetic field, detecting the difference between north and south. This... |
24 September 2007
06:49 GMT |
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According to researchers working at a joined project of the University of California and Hitachi Global Storage Technologies, cited by ITPro, most hard disk drive failures are produced by phenomena called "magnetic avalanches" and their better understanding could lead to hard disk drives that are much more stable and... |
19 July 2007
03:00 GMT |
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Scientists had a rare occasion to study one of the most impressive marine animals, which gave birth to so many legends among sailors throughout history, a large giant squid that washed up to shore on a remote Australian beach, reported Reuters.It was really a fine specimen, but unfortunately the tentacles had been b... |
11 July 2007
05:02 GMT |
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The first pictures of the spatial distribution of a magnetic field penetrating a superconductor were presented by a team of researchers at the U.S. Department of Energy's Ames Laboratory. They show strange two-dimensional equilibrium patterns and intricate models.Soap-foam like structures display on the surface... |
9 July 2007
09:52 GMT |
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Nanotechnology is full of surprises and new applications are discovered every day. One of the most unusual is the recent experiment of a team of scientists who were able to make a magnet change the color of a liquid, turning it from coffee-brown to orange, then green and finally dark blue.The liquid is actually a so... |
6 July 2007
09:02 GMT |
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For the first time, scientists from the European Space Agency obtained tri-dimensional pictures of a spectacular magnetic "dance" above the Earth, caused by a phenomenon known as "magnetic reconnection."The Cluster mission is a European Space Agency (ESA) unmanned space mission to study the Earth's magnetosphe... |
29 June 2007
09:52 GMT |
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Superconductivity is a phenomenon occurring in certain materials at extremely low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field. They are thought to appear usually below -140 degrees Celsius. Superconductors are used in many applications, like MRI ... |
20 June 2007
02:50 GMT |
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Scientists have suspected for years that electric fields cause cancer. But new investigations show that in fact they could stop or even kill it. Low-intensity, intermediate-frequency electric fields were useful in fighting off an aggressive brain cancer called glioblastoma multiforme (GBM). The electric field strateg... |
31 May 2007
03:00 GMT |
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A mystery about the interior of the Sun lasting for centuries has been solved by scientists at National Science Foundation (NSF) and NASA. They now proved that sound waves escape the interior of the sun and form fountains of hot gas that shape and provide fuel for a region of the sun's atmosphere.This thin regi... |
30 May 2007
15:31 GMT |
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Every 11 years, the Sun experiences its own "storm season," with violent explosions in its atmosphere, with an energy equivalent to a billion megatons and travelling towards Earth at about 1 million km per hour (about 0.05% the speed of light), though sometimes much faster. Predicting such events is not easy, but no... |
26 May 2007
08:02 GMT |
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Present information technologies rely on electrons for carrying process data and information, but, as silicon technology is reaching its physical limits, researchers are looking for alternatives. Another emerging field is "spintronics", that deals with the use of the "spin" of an electron for storing, processing an... |
28 April 2007
05:50 GMT |
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That's it. The World's natural abundance tap is going to turn off.Between 2008 and 2018, the world will experience a last year of high oil production followed by a constant drop, as it is depicted by a new model made by Fredrik Robelius, a Swedish physicist and petroleum engineer at the University of Uppsal... |
18 April 2007
05:46 GMT |
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The findings, which are contrary to previous studies, suggest that even in its earliest stages, the Earth was already well protected from the solar wind, which can strip away a planet's atmosphere and bathe its surface in lethal radiation."The intensity of the ancient magnetic field was very similar to today�... |
5 April 2007
08:18 GMT |
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It will be the world's strongest magnet for neutron experiments, eclipsing the 15-tesla system now in use.The new, high-field magnet, which is based on the magnet lab's Series-Connected Hybrid concept, will be housed at the Berlin Neutron Scattering Center. The magnet will produce a magnetic field between ... |
4 April 2007
06:48 GMT |
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