I'd like to send this letter by <a href=" http://fftm.se/blogg/buy-cheap-levlen.pdf#closely ">why is levlen so cheap</a> The next great challenge for the mathematical modellers is to come up with a working version of the brain, with its billions of interconnected neurons. Last week, a model of the world&rsquo;s smallest brain &ndash; that of a 1mm-long nematode worm, C. elegans, containing just 302 neurons &ndash; went on show at MOSI (the Museum of Science & Industry in Manchester). Meanwhile, the Human Brain Project, led by Prof Henry Markram at the École Polytechnique Fédérale de Lausanne on the shores of Lake Geneva, passed a key milestone last September, with a proof of concept that showed it could wire up virtual neurons in a way that matches what&rsquo;s been observed in studies of living nerve tissue.