Researchers using data from NASA's THEMIS mission have pinpointed the impact epicenter of an earthbound space storm as it crashes into the atmosphere - and given an advance warning of its arrival. The team's study reveals that magnetic blast waves can be used to pinpoint and predict the location where space storms dissipate their massive amounts of energy. These storms can dump the equivalent of 50 gigawatts of power, or the output of 10 of the world's largest power stations, into Earth's atmosphere.
The joint Japan-U.S. Suzaku mission is providing new insight into how assemblages of thousands of galaxies pull themselves together and, for the first time, Suzaku has detected X-ray-emitting gas at a cluster's outskirts, where a billion-year plunge to the center begins.
Suzaku ("red bird of the south") was launched on July 10, 2005. The observatory was developed at the Japanese Institute of Space and Astronautical Science (ISAS), which is part of the Japan Aerospace Exploration Agency (JAXA), in collaboration with NASA and other Japanese and U.S. institutions.
A team of physicists and engineers have demonstrated all-fibre quantum logic, where single photons are generated and used to perform the contolled-NOT quantum logic gate in optical fibers with high fidelity.
The only quantum technology in practical use today is quantum cryptography and is currently limited in the distance over which secure communication may occur.
More sophisticated quantum networks will require multiple nodes with the ability to implement small-scale quantum processing in order to increase the range of quantum communications. Such networks will rely on optical fibre links, making fibre-based photon generation and information processing of key technological importance.
If you watched "Angels&Demons" recently, you may have thought particle physics was just about scary science that could do real harm on the chance it may do future good.
Not so, though most people don't realize the impact particle physics has had on society. Particle physics saves lives, connects continents through new channels of communication and generally helps us understand the world around us. In many ways it inspires tomorrow’s leaders.
While the perils associated with particle physics, from Earth-gobbling black holes to Vatican-destroying amounts of antimatter, gain news headlines, it’s easy to overlook the large economic and societal benefits of particle physics research.
Five-fold symmetry is considered to be impossible in crystallography for the same reason that pentagonal tiles do not exist - it is not possible to cover a floor or wall simply using tiles with five sides of all the same length.
The only way around the problem is to use other geometrical shapes to fill in the gaps, a principal used by the builders of mosques as long ago as the 15th century. The complex ornamental structure was "rediscovered“ by mathematicians last century.
Roger Penrose demonstrated a pattern named the Penrose Parquet, which achieves complete coverage following simple rules using two periodically repeating geometrical forms.
The Centre for Epidemiological Studies into Sexually-Transmitted Diseases and AIDS in Catalonia (CEEISCAT) started a pioneering study in Spain in 2005 to look into the prevalence of sexually-transmitted diseases (STDs) among female sex workers (SWs). The objective was to monitor the rates of infection with both HIV and other diseases over time, as well as the prevalence of risky behavior.