OLED Components" New Warnings On EMP Threat. 'Magnetic electricity' discovered. Researchers have discovered a magnetic equivalent to electricity: single magnetic charges that can behave and interact like electrical ones. The work is the first to make use of the magnetic monopoles that exist in special crystals known as spin ice. Writing in Nature journal, a team showed that monopoles gather to form a "magnetic current" like electricity. The phenomenon, dubbed "magnetricity", could be used in magnetic storage or in computing.
Magnetic monopoles were first predicted to exist over a century ago, as a perfect analogue to electric charges. Although there are protons and electrons with net positive and negative electric charges, there were no particles in existence which carry magnetic charges. Rather, every magnet has a "north" and "south" pole.
Current event In September this year, two research groups independently reported the existence of monopoles - "particles" which carry an overall magnetic charge. Greg's Cable Map. Gene tweak boosts fly sex appeal. Two male flies that have had their hydrocarbon-producing cells removed Flies that cannot make a type of pheromone are "sexually irresistible" to other flies - regardless of gender. Scientists bred fruitflies that were unable to secrete hydrocarbon signalling chemicals. They report in the journal Nature that hydrocarbon-free male flies attempt to copulate with each other. In fact, when these chemical signals are removed, flies are completely unable to recognise gender or species barriers.
Joel Levine, a neuroscientist from the University of Toronto at Mississauga in Canada, led the team that carried out the research. "The big question we wanted to ask was: how does a fly recognise another fly? " His team bred their experimental flies using a transgene. This is a gene which is inserted into the fly genome and contains a specific set of instructions - in this case to kill the cells that secrete hydrocarbons. The scientists marked the target cells, called oenocytes, with a fluorescent dye.