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Hot electrons caught by scientists

Scientists theorized for decades that it is possible doubling Fire-Magma Tibia Open Server of the efficiency of solar cells if successfully exploited the so-called "hot electrons". Now, researchers at the Jesuit Boston College experimentally proved that the theory is true. When sunlight reaches the cells, the result of its impact is the emergence of free electrons of different energy states. Acquisition of these energies is possible, when they reach the low ranges of conduction band. The problem is that in the meantime, these high-energy hot electrons lose most of its energy. Thus, for example, happens when the solar cell optimized for obtaining energy from the infrared spectrum of the photon reaches a higher energy state. First, it becomes "hot electron" and only with the abstraction energy. Before this, however, the electron loses a lot of it. If we can capture energy from "hot electrons" before I lose, the theoretical efficiency of solar cells could increase by up to 67%.

Consume billions of gigabytes of data

Researchers at the University of California, San Diego, prepared a report on the consumption of information by the Americans in 2008 [PDF]. It follows from this that the people of the United States within 12 months, "they used" 3.6 zettabytes (1021, one trillion gigabytes) of information and nearly 11 quadrillion words. This means that the average inhabitant of this country, "consumed" for each of 34 gigabytes of information and 100.500 words. Such data is obtained from the analysis of more than 20 sources of information. From books and newspapers, portable computer games, satellite radio and online video. The study does not include information "consumed" during working hours. Scientists define "information" as the flow of data coming to the people and counted bytes, words, and time spent on consumption.

Paper Batteries

Just dip a piece of paper in ink made of carbon nanotubes and silver nanocables to rapidly obtain the battery - says Professor Yi Cui of Stanford University. Society needs to be cheap, highly efficient energy storage devices such as batteries and Supercapacitors simple - the scientist says. The scientist says that its batteries are special. Through the use of materials at the nano scale, the basic elements of battery are very small, so the ink nanopipes and nanocables strongly attaches to the paper fibers. This in turn means that batteries are extremely durable. Battery made by Cui proposed method is able to withstand 40 000 charge / discharge cycles, and so much more than a modern lithium batteries.