The recent rapid progress in the natural sciences and engineering has enabled us to use the tools of engineering to answer many questions that have troubled humanity since its very beginnings. Ultra-fast and ultra-powerful supercomputers, the mapping of the human genome, interfaces that connect directly to the brain, nanotechnology-driven molecular-sized implants, fast internet-based communication technologies are but a few of the many new technologies that are quickly becoming widely available. While providing answers to old questions, these technologies are also opening up entire new fields of study and horizons of knowledge. Biomedical engineering – a field that is multi-disciplinary by nature – seeks to apply these technological advances in the service of biology and medicine. The problems facing the biomedical engineer are problems of diagnosis and testing, on the one hand, and actual medical treatment, on the other. Whether the subject involves equipment for diagnosis or treatment, the use of computers or robots, support for natural processes, or artificial limbs, the successful Biomedical Engineer must take a multi-disciplinary approach to the problem.