A very funny ad with a lot of sexy girls, encouraging us to visit Israel. Oh, and don't forget to bring a flak-jacket with you Enjoy the hot girls!

For the first time there was a negative charge exactly equal to 25 percent of that unit. Research in Nature magazine. Since the electricity comes from the transport of electrons, it is logical to expect that the smallest load that can be transported is equal to the charge of a single electron. Under specific conditions, it is possible to observe portions of this fundamental unit. Even in these conditions, however, there have been observed only odd fractions of charge: third, fifth, seventh. In the last issue of Nature it was published the existence of a quasi-particle with a charge corresponding exactly a quarter of that of an electron. In particular, these unique elementary particles, which have been precisely called "quasi-particles" to their particular nature, are formed when electrons are confined in a two-dimensional system, which forces them to interact strongly with each other. It is known that when a flow of electrons is confined in a two-dimensional plan of a semiconductor and it is applied simultaneously in a strong magnetic field perpendicular to this plane, the electrons have unusual quantum properties. In a research just published in Nature, in an electron gas, two-dimensional and ultra-pure, were detected within the fluid vortexes charges carrying exactly one quarter of the charge of an electron.

The procedural memory remains imprinted in the chemical synapses. It is not the merit of a cell constant. When we drive a car or we tie a shoe knot, we store a series of gestures that are accessed faster and automatically whenever you need that action again. It is the so-called working memory or procedural memory, whose operation resembles that of cache memory of a computer, for example, allows us to more quickly open a website already visited. A study conducted by Gianluigi Mongillo of French Cnrs research, and Omri Barak and Misha Tsodyks the Weizmann Institute (Israel) would seem to refute the widespread belief that this type of memory is fixed thanks to a number of specific neurons. On the contrary, the procedural memory is recorded at the level of chemical changes in cells that remain after the transition pressure in nervous synapses (points of contact and communication between neurons).