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Wuala - a distributed file system Google Tech Talks October, 30 2007 ABSTRACT After three years of research and development on a distributed storage system, we are ready to unveil the result: Wuala. Wuala is a new way of storing, sharing, and publishing files on the internet. Unlike traditional online storage systems, Wuala is decentralized and can harness idle resources of participating computers to build a large, secure, and reliable online storage. This enables its users to trade parts of their local storage for online storage and it allows us to provide a better service for free. In the talk, I will explain what Wuala is and how it works, and I will also show a demo. All attendees will also get an invitation code to join the early alpha version. Speaker: Dominik Grolimund I am 26 years old and have studied computer science at ETH Zurich. In 1998, I founded my software company Caleido, and developed the Caleido Address-Book, a professional contact management software, of which over 35'000 licenses have been sold so far in Switzerland, Germany and Austria. In 2003, I did an exchange semester at the TU Delft, the Netherlands, as part of the Unitech exchange program, focusing on business and management. In 2004, a six-month internship followed with Siemens Corporate Research in Princeton, New Jersey in the US, where I worked in the 'Intelligent Vision & Reasoning' department, developing a prod... Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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sex on the internet, the realities of porn, sexual privacy, Google Tech Talks October, 12 2007 ABSTRACT Speaker: Violet Blue Violet Blue is the best-selling, award-winning author and editor of twenty books on sex and sexuality, all currently in print, a number of which have been translated into several languages; she has contributed to a number of nonfiction anthologies. Violet is a sex educator who lectures at UC's and community teaching institutions, and writes about erotica, pornography, sexual pleasure and health for major publications and blogs. She is a professional sex blogger and femmebot; an author at Metroblogging San Francisco (Metblogs); a correspondent for Geek Entertainment Television; she is on the Gawker Media payroll as girl friday contibutor and editor at Fleshbot; in January 2007, Violet was named a Forbes Web Celeb 25. She is a San Francisco native and human blog. Violet is the sex columnist for the San Francisco Chronicle with a weekly column titled Open Source Sex, and has a podcast of the same name that frequents iTunes' top ten. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Pimp my Genome! The Mainstreaming of Digital Genetic... Google Tech Talks May 3, 2007 ABSTRACT DNA is a programming language for living cells. The cell's basic operating system, or genome, directs functions like growth and reproduction, energy utilization, and the production of useful compounds like ethanol or penicillin. With genetic engineering, new functions can be added to cells or broken metabolic pathways repaired. Until recently, genetic engineering has required the DNA molecule itself to be physically manipulated, a tedious and expensive process. Now, automatic DNA synthesis permits virtually any DNA code to be made from scratch, opening up genetic engineering to anyone with a computer and a credit card. The capabilities of this new synthetic... Tags: google howto pimp genome mainstreaming |
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Ruby 1.9 Google Tech Talks February, 20 2008 ABSTRACT Ruby 1.9 Speaker: Yukihiro Matsumoto Yukihiro Matsumoto (Matsumoto Yukihiro, a.k.a. Matz, born 14 April 1965) is a Japanese computer scientist and software programmer best known as the chief designer of the Ruby programming language. He was born in Osaka Prefecture, in western Honshu. According to an interview conducted by Japan Inc., he was a self-taught programmer until the end of high school. He graduated with an information science degree from Tsukuba University, where he associated himself with research departments dealing with programming languages and compilers. As of 2006, Matsumoto is the head of the research and development department at the Network Applied Communication Laboratory, an open source systems integrator company in Shimane prefecture. He is a member of The Church of Jesus Christ of Latter-day Saints and served as a missionary for the church. Matsumoto is married and has four children. http://en.wikipedia.org/wiki/Yukihiro_Matsumoto Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Gaming For Freedom Google Tech Talks June 6, 2008 ABSTRACT Tim, Founder of the Thousand Parsec project, will explore the universe of Free and Open Source computer games, drawing on his personal experience as a case study for successfully building and contributing to an Open Source game project. Many areas will be covered including many which are of interest to people who don't normally play games! Discover the variety and creativity of some existing FOSS games, learn about how commercial games are using FOSS and finally, *how to start your own game project*. Speaker: Tim Ansell Tim Ansell has given talks about FOSS gaming at a number of conferences and organised the Gaming Miniconf at Linux.conf.au 2007 and 2008. Tim is an avid FOSS game developer, founding the Thousand Parsec project 7 years ago in 2001. Originally getting involved in FOSS development via a game project called WorldForge, he now believes that games are a very important part of the FOSS ecosystem. More info at http://blog.mithis.net/archives/games/82-techtalk-gamingforfreedom Slides available at http://www.google.com/url?sa=D&q=http://blog.mithis.net/wp-content/uploads/2008/06/techtalk6-pdfable.pdf Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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CGAL: The Open Source Computational Geometry Algorithms Library Google Tech Talks March, 3 2008 ABSTRACT Introduction Project mission statement, history, internal organization, partners, CGAL in numbers. What's in CGAL A survey on available data structures and algorithms, as well as examples how and by whom they are used. Topics include Triangulations, Voronoi diagrams, Boolean operations on polygons and polyhedra, arrangements of curves and their applications, Mesh generation, Geometry processing, Alpha shapes, Convex hull algorithms, Operations on polygons, Search structures, Interpolation, Shape analysis, fitting, and distances, Kinetic data structures... Generic Programming Paradigm CGAL data structures are C++ template classes and functions, usually taking several template parameters (with default values for ease of use). This gives developers an incredible flexibility to adapt the data structures to their needs, which is important internally for code reuse, and important for end users, as they typically integrate CGAL in already existing applications. Parts of CGAL are also interfaced with languages and software like Python, Java, Scilab, Qt and the Ipe drawing editor. Exact Geometric Computing Paradigm We present how to make geometric algorithms correct, robust, and nevertheless fast, by combining floating point arithmetic with exact arithmetic, and clever filtering mechanisms to switch between these two modes. These mechanisms can be used for geometric predicates, as well as for geometric constructions, which instead of a discrete return value generate new geometric entities. Conclusion and Outlook A wrapup, and a sneak preview on algorithms that might make it into future releases of CGAL. Speaker: Andreas Fabri, PhD, GeometryFactory As member of the initial development team of the CGAL project, Andreas is one of the architects of the CGAL software. For several years he chaired the CGAL Editorial Board. In 2003, Andreas founded the GeometryFactory as spin-off of the CGAL project, offering licenses, service and support to commercial users. Andreas received his PhD in 1994 from the Ecole des Mines de Paris, while working on geometric algorithms for parallel machines at INRIA. Speaker: Sylvain Pion, PhD, INRIA Sophia-Antipolis Sylvain got involved in the CGAL project during his PhD, which he received in 1999 at INRIA. He worked then on providing generic solutions to numerical robustness issues arising in geometric algorithms. Later on he worked on the efficiency of some fundamental geometric algorithms such as 3D Delaunay triangulations. He is now also involved in C++ standardization, and is working on parallel geometric algorithms. He is employed as researcher at INRIA, and is the current chair of the CGAL Editorial Board. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Dryad: A general-purpose distributed execution platform Google Tech Talks November, 1 2007 ABSTRACT Web search has generated the need and economic support for a new class of data-intensive supercomputing applications. Several computing platforms have been created to support this need: the first described in the literature is Google's MapReduce. I will describe the architecture of the Dryad system developed at Microsoft Research, and explain some of our design choices. Dryad allows more general computations than MapReduce, and has consequently been used as a middleware abstraction on which higher-level programming models can be implemented. I will also briefly discuss some of these. Speaker: Michael Isard Michael Isard started out as a computer vision researcher, but has gradually been lured into systems research by his colleagues, first at DEC/Compaq SRC and now at Microsoft Research Silicon Valley. He was closely involved in the design and implementation of the first version of Microsoft's in-house search engine, and his systems research subsequently has concentrated on programming models for parallel and distributed computing. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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2 girls + 7 months + 17 countries + more than 200 encounters = the Energy Wor... Google Tech Talks June, 13 2008 ABSTRACT In January 2007, two young engineers set off to understand how, from Norway to Brazil, from Zambia to Pakistan, entrepreneurs, inventors and civil servants are striving to address the challenges that global warming and the constrained resources of fossil fuels are presenting the 21rst century with. Blandine will be happy to present you with some of the interesting initiatives that Elodie and her collected during this trip, and discuss with you how energy, environment and development interact. Speaker: Blandine Antoine Blandine Antoine has long been keen to broaden her horizons by meeting and working with people from different backgrounds and cultures. Internships and studies in Texas, Russia, Japan, California and more recently Massachusetts have given ground to her conviction that the time she was living in was one of exchanges and unrestrained creativity for those willing to stop, listen and discuss others intuitions, needs and constraints. Her long-lasting interest in the different forms of energy prompted her to take this conviction a step further and embark, with Elodie Renaud, on the Energy World Tour, a 7-month investigation of what energy innovations look like around the world. Their goal? Meet with those who tackle energy challenges, and make their works known to a broader public Since tomorrow is already at our door, Blandne and Elodie felt that these reports would have more impact by supporting another project, targeting younger people. They thus founded Prométhée, a non-profit dedicated to promoting education on energy science and technology which developed class material to be used by primary school teachers and pupils. Blandine holds a diplôme d'ingénieur from the Ecole Polytechnique (France), a MS in Nuclear Engineering from UC Berkeley and a Master in Public Administration from the Ecole des Ponts et Chaussées (France). She has worked at the French National Safety Authority and with GE Nuclear Energy, and is the co-founder of the non-profit Prométhée. A civil servant for the French department for transportation and infrastructures, she is a PhD candidate at MIT's Engineering Systems Division, where she wishes to investigate the economic impacts of the increased used of biomass for fuel on developing economies. Blandine is a Fondation Carnot Fellow and holds a Presidential fellowship from MIT. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Git Google Tech Talks October, 12 2007 ABSTRACT When you have hundreds of people simultaneously patching 25000 files of the Linux Kernel in sometimes conflicting ways, you might need some scheme or plan to sort all that out before you can build your next kernel and reboot. The Linux team uses "git" for their source code repository management, a homegrown solution that is optimized for highly distributed development, working with huge sets of files, merging independent work at multiple levels, and seeing who broke what. (Git has also since been notably adopted by the Cairo, x.org, and Wine teams, and is being transitioned to by the Mozilla codebase.) In my talk, I describe what "git"; is and isn't, and why you should use it instead of CVS, Subversion, SVK, Arch, Darcs, Mercurial, Monotone, Bazaar, and just about every other repository manager. I'll also walk though the basic concepts so that the manpages might start making sense. If I have time, I'll even do a live walkthrough, where you can watch how fast I make typos. Speaker: Randal Schwartz Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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The Web That Wasn't Google Tech Talks October, 23 2007 ABSTRACT For most of us who work on the Internet, the Web is all we have ever really known. It's almost impossible to imagine a world without browsers, URLs and HTTP. But in the years leading up to Tim Berners-Lee's world-changing invention, a few visionary information scientists were exploring alternative systems that often bore little resemblance to the Web as we know it today. In this presentation, author and information architect Alex Wright will explore the heritage of these almost-forgotten systems in search of promising ideas left by the historical wayside. The presentation will focus on the pioneering work of Paul Otlet, Vannevar Bush, and Doug Engelbart, forebears of the 1960s and 1970s like Ted Nelson, Andries van Dam, and the Xerox PARC team, and more recent forays like Brown's Intermedia system. We'll trace the heritage of these systems and the solutions they suggest to present day Web quandaries, in hopes of finding clues to the future in the recent technological past. Speaker: Alex Wright Alex Wright is an information architect at the New York Times and the author of Glut: Mastering Information Through the Ages. Previously, Alex has led projects for The Long Now Foundation, California Digital Library, Harvard University, IBM, Microsoft, Rollyo and Sun Microsystems, among others. He maintains a personal Web site at http://www.alexwright.org/ Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Haiku: The Operating System Google Tech Talks February 13, 2007 ABSTRACT This is an introduction to Haiku, an open source operating system designed from the ground up for the desktop, inspired in the concepts and technologies of BeOS. The presentation will cover the concepts and features that make Haiku unique, as well as a hands on demo. Credits: Speaker:Bruno Albuquerque, Speaker:Axel Dörfler, Speaker:Jorge Mare, Speaker:Michael Phipps Tags: haiku os beos |
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The National Institutes of Health (NIH) and Computational Infrastructure for... Google Tech Talks January, 8 2008 NIH awards more than $500M/yr for grants to researchers pursuing research in biomedical informatics. This includes computation, simulation, modeling, and, increasingly, work on storage, retrieval, curation, and analysis of massive amounts of data needed for biomedical research. Dr. Marron will outline the investment strategy for making awarding funds in this broad area of research. Speaker: Dr. Michael Marron Mike Marron is the director of the Biomedical Technology Division of the National Center for Research Resources (NCRR) at the National Institutes of Health (NIH). His group focuses on funding development and collaborative sharing of cutting-edge technologies ranging from new imaging techniques using advanced light sources (e.g. synchrotrons) to computational and networking infrastructure for integrative, multi-disciplinary science (e.g. http://www.nbirn.net/). Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Python 3000 Google TechTalks July 21, 2006 Guido van Rossum is a computer programmer who is best known as the author and Benevolent Dictator for Life of the Python programming language. ABSTRACT The next major version of Python, nicknamed Python 3000 (or more prosaically Python 3.0), has been anticipated for a long time. For years I have been collecting and exploring ideas that were too radical for Python 2.x, and it's time to stop dreaming and start coding. In this talk I will present the community process that will be used to complete the specification for Python 3000, as well as some of the major changes to the language and the remaining challenges. Tags: python google howto |
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Semantic Web Google Tech Talks May 25, 2007 ABSTRACT The Semantic Web is a field aiming a the creation, deployment, and interoperation of machine readable data on the Internet. In the talk we present some projects in DERI on Semantic Web technologies - notably Semantic Interlinking of Online Community sites, Social Semantic Collaborative Filtering, and ActiveRDF, a library for Browsing, programming and navigating Semantic Web data. The SIOC (Semantic Interlinking of Online Communities) project [1] is an effort aiming at establishing and deploying a metadata vocabulary for interlinking and connecting distributed conversation on blogs, bulletin boards, and mailing lists. The vocabulary has been implemented... Tags: google howto semantic web |
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QSTP TECHtalks, 18 Mar. 2008 Could driverless cars work in Doha? QSTP TECHtalk by Dr. Chris Urmson of Carnegie Mellon University's Tartan Racing team, 18 March 2008. Tags: QSTP qatar science technology park techtalk techtalks chris urmson boss urban challenge tartan racing autonomous |
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Polyworld: Using Evolution to Design Artificial Intelligence Google Tech Talks November, 8 2007 ABSTRACT This presentation is about a potential shortcut to artificial intelligence by trading mind-design for world-design using artificial evolution. Evolutionary algorithms are a pump for turning CPU cycles into brain designs. With exponentially increasing CPU cycles while our understanding of intelligence is almost a flat-line, the evolutionary route to AI is a centerpiece of most Kurzweilian singularity scenarios. This talk introduces the Polyworld artificial life simulator as well as results from our ongoing attempt to evolve artificial intelligence and further the Singularity. Polyworld is the brain child of Apple Computer Distinguished Scientist Larry Yaeger, who remains the primary developer of Polyworld: http://www.beanblossom.in.us/larryy/Polyworld.html Speaker: Virgil Griffith Virgil Griffith is a first year graduate student in Computation and Neural Systems at the California Institute of Technology. On weekdays he studies evolution, computational neuroscience, and artificial life. He did computer security work until his first year of university when his work got him sued for sedition and espionage. He then decided that security was probably not safest field to be in and he turned his life to science. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Coaching Series: Advancing Toward Your Dreams & Goals: Exerc Google Tech Talks January, 31 2008 ABSTRACT Advancing toward your dreams and goals is an essential part of personal satisfaction, leadership and career development, transitioning to a new role/location, performance improvement, and dealing with crises. This fast-paced, hands-on session will cover a variety of unique and fun exercises and practices. You will learn the importance of life balance and ways of defining and personalizing it for you; the importance of balancing short, medium, and long-term dreams and goal achievement; how to make your dreams a tangible part of your everyday life and surroundings; how to strengthen your powers of visualization; and how to build on relationships and networking to help make dreams a reality. Examples of specific exercises include dream affirmations, dream storyboarding, personal pep-talks, forgiving yourself, mining your accomplishments, cultivating a gratitude attitude, and living from greatness. These techniques can be used either with a coach or by yourself. Just as a fitness trainer helps you advance toward your physical dreams and goals, this session helps you advance toward your professional and personal dreams and goals. Google offers you generous one-on-one coaching and other coaching services, and you and your coach can apply techniques from this session that work best for you to meet your individual needs and style. Speaker: Michael Beasley Michael Beasley, Ph.D., works with directors, managers and individual contributors. He thinks of his clients as "super heroes" and like all "super heroes" (think Spiderman) most people occasionally get stuck, sometimes seeking that next lifeline even though they may be high functioning employees. Backed by experience in computer, software, Internet, engineering, large-scale construction, consumer industries, and higher education, including management positions at Hewlett-Packard and Director of the Executive MBA Program and Associate Professor at Golden Gate University, he enables professionals to define goals and achieve results. He has a proven track record in the corporate setting for developing leaders and team players through coaching, consulting and education. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Getting C++ Threads Right Google Tech Talks December, 12 2007 ABSTRACT The advent of multicore processors has generated profound debate on the merits of writing parallel programs with threads and locks. Nonetheless, for many application domains, this remains the standard paradigm for writing parallel programs, and at the moment, there is no apparent universal replacement. And it is the focus of this talk. Somewhat surprisingly, there are a number of often subtle, but generally fixable, industry-wide problems with current approaches to threads programming. We'll focus on probably the most widely used environments, consisting of C or C++ with a standard threads library. Problems span the spectrum from system libraries through language implementations through supporting hardware. They get in the way both in that they often make it difficult to write 100% reliable multi-threaded software, and in that they confuse even the basics of the programming model, thus making it hard to teach. A surprising number of "experts" do not understand the basic rules. Arguably, these problems really need to be addressed to even allow a meaningful comparison to other parallel programming approaches. Since solutions to these problems generally require a coordinated industry effort, we helped to persuade the C++ standards committee to address them by pursuing a coherent approach to threads in the next C++ standard. The talk will outline some of the proposed solutions, and give an update on this effort. Speaker: Hans Boehm Hans Boehm is a member of the advanced architecture group at HP Labs. He has worked on many aspects of programming language design and implementation, including garbage collection and concurrency, and he was HP's representative to the effort to redesign Java's memory model. He is a past Chair of ACM SIGPLAN, and is an ACM Distinguished Scientist. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Computing for the Future of the Planet - Originally given at the Royal Society Google Tech Talks May, 14 2008 ABSTRACT Digital technology is becoming an indispensable and crucial component of our lives, society, and environment. A framework for computing in the context of problems facing the planet will be presented. The framework has a number of goals: an optimal digital infrastructure, sensing and optimising with a global world model, reliably predicting and reacting to our environment, and digital alternatives to physical activities. This talk will be taped. Speaker: Andy Hopper Andy Hopper is Professor of Computer Technology at the University of Cambridge and Head of the Computer Laboratory. His research interests include networking, pervasive and sentient computing, and using computers for assuring the sustainability of the planet. He is a Fellow of Corpus Christi College. Andy Hopper has pursued academic and industrial careers in parallel. In the academic career he has worked in the Computer Laboratory and the Department of Engineering at Cambridge. In the industrial career he has worked in senior roles for multinational companies and also co-founded a dozen spin-outs and start-ups, two of which floated on stock markets. He is currently chairman of RealVNC, Ubisense and Adventiq, and a director of Solarflare. Professor Hopper received the BSc degree from the University of Wales Swansea (1974) and the PhD degree from the University of Cambridge (1978). He is a Fellow of the Royal Academy of Engineering (1996) and of the Royal Society (2006). He was made a CBE for services to the computer industry (2007). Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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"Science and the taboo of psi" with Dean Radin Google Tech Talks January, 16 2008 ABSTRACT Do telepathy, clairvoyance and other "psi" abilities exist? The majority of the general population believes that they do, and yet fewer than one percent of mainstream academic institutions have any faculty known for their interest in these frequently reported experiences. Why is a topic of enduring and widespread interest met with such resounding silence in academia? The answer is not due to a lack of scientific evidence, or even to a lack of scientific interest, but rather involves a taboo. I will discuss the nature of this taboo, some of the empirical evidence and critical responses, and speculate on the implications. Speaker: Dean Radin Dean Radin is a researcher and author in the field of parapsychology. He is Senior Scientist at the Institute of Noetic Sciences and four-time former President of the Parapsychological Association. He holds an undergraduate degree in electrical engineering from the University of Massachusetts Amherst, and a masters degree in electrical engineering and a doctorate in educational psychology from the University of Illinois at Urbana-Champaign. He has worked at AT&T Bell Labs and GTE Labs, mainly on human factors of advanced telecommunications products and services, and held appointments at Princeton University, Edinburgh University, University of Nevada, Las Vegas, SRI International, Interval Research Corporation, and Boundary Institute. At these facilities he was engaged in basic research on exceptional human capacities, principally psi phenomena. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Cognitive Neuroscience of Mindfulness Meditation Google Tech Talks February, 28 2008 ABSTRACT Mindfulness meditation, one type of meditation technique, has been shown to enhance emotional awareness and psychological flexibility as well as induce well-being and emotional balance. Scientists have also begun to examine how meditation may influence brain functions. This talk will examine the effect of mindfulness meditation practice on the brain systems in which psychological functions such as attention, emotional reactivity, emotion regulation, and self-view are instantiated. We will also discuss how different forms of meditation practices are being studied using neuroscientific technologies and are being integrated into clinical practice to address symptoms of anxiety, depression, and stress. Speaker: Philippe Goldin Philippe is a research scientist and heads the Clinically Applied Affective Neuroscience group in the Department of Psychology at Stanford University. He spent 6 years in India and Nepal studying various languages, Buddhist philosophy and debate at Namgyal Monastery and the Dialectic Monastic Institute, and serving as an interpreter for various Tibetan Buddhist lamas. He then returned to the U.S. to complete a Ph.D. in Clinical Psychology at Rutgers University. His NIH-funded clinical research focuses on (a) functional neuroimaging investigations of cognitive-affective mechanisms in adults with anxiety disorders, (b) comparing the effects of mindfulness meditation and cognitive-behavioral therapy on brain-behavior correlates of emotional reactivity and regulation, and (c) training children in family and elementary school settings in mindfulness skills to reduce anxiety and enhance compassion, self-esteem and quality of family interactions. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Viewfinder: How to Seamlessly "Flickrize" Google Earth / a collaboration betw... Google Tech Talks April, 14 2008 ABSTRACT "Viewfinder" is a novel method for users to spatially situate, or "find the pose," of their photographs, and then to view these photographs, along with others, as perfectly aligned overlays in a 3D world model such as Google Earth. Our objective is to provide a straightforward procedure for geo-locating photos of any kind, and our approach is to engage a community of users for a certain amount of human help. We specify that a 10-year-old should be able to find the pose of a photo in less than a minute, and we are convinced that this goal is achievable. Our work to date, supported by a Google Research Award, was intended to be fast, lean, and focused on a single piece of a larger puzzle: posing and viewing arbitrary photos in pre-existing 3D models (not custom-recorded photos and not model building, though we hope our work will be useful in these areas). In addition to presenting Viewfinder specifics, the larger puzzle itself will be examined. This talk will be taped. Speaker: Michael Naimark Michael Naimark, Viewfinder Project Director Michael Naimark has made interactive "moviemaps" of Aspen from the street, Paris from the sidewalk, San Francisco from the air, Karlsruhe from the rail, Banff from hiking trails, and stereo-panoramic movies in Jerusalem, Dubrovnik, Angkor, and Timbuktu. His work is an unusual combination of optimism and activism, for example, it currently ranks #1 on Google searches for both VR webcams and camera zapper. Naimark received the World Technology Award for the Arts in 2002 and was the subject of a 20-year retrospective at the Art Center College of Design in Pasadena in 2005. He currently serves on the Visiting Committee for the MIT Media Lab and on the faculty in the Interactive Media Division of the USC School for Cinematic Arts. For more information, please visit http://www.naimark.net . Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Electricity from Orbit: The case for R & D Google Tech Talks December, 5 2007 ABSTRACT Cost-effective space solar power (SSP) -- the beaming abundant high-intensity solar power from space though atmospheric windows at laser or microwave frequencies for electric power at the surface -- could be a breakthrough technology for large-scale power generation, highly flexible power distribution and sustainable carbon-neutral base load for Earth; a goal comparable, but much closer to engineering maturity, to that of controlled thermonuclear fusion. Apart from much higher than the surface mean solar flux, continuous sunlight in space avoids otherwise cost-pacing massive storage and transmission of intermittent terrestrial solar and windpower to match electric demand curves. Access to space cost reductions will likely be driven by economies of scale from commercialization. But SSP would be markedly accelerated by experiments feasible now, some employing ISS, including orbital mirrors and microwave and and laser beaming in space. The just-released report on SSP by the National Security Space Office (available at http://www.nss.org/settlement/ssp/library/nsso.htm) concludes that "it would be in the US Government's and the nation's interest to sponsor an immediate proof-of-concept demonstration project and a formally funded, follow-on architecture study conducted in full collaboration with industry and willing international partners." For example, I will describe our proposed demo of wireless power transmission from geosynchronous orbit (GEO) using diode laser transmitters in space and surface PV module receivers employing a self-deploying single launch one metric tonne satellite payload. Because diffractive beam spreading requires large antennas at microwave frequencies, it would be virtually impossible to launch microwave beamers large enough for efficient space-to-Earth power transfer without expensive multiple launches and in-space assembly. This limitation is overcome with the laser-based system proposed here although commercial SSP power stations might well utilize microwave beaming down the road. This experiment would demonstrate continuous electric power transfer from orbit orders of magnitude greater than anything done before, perhaps powering a remote village off the grid in the developing world. With near term and "on the shelf" components and early launch opportunities like NASA's Geo QuickRide, piggybacks on communication satellite launches, and the ISS as testbed, near term experiments could accelerate SSP from paper studies to a real alternate energy option in as little as a three to five year time frame at relatively modest cost. Speaker: Marty Hoffert Martin I. Hoffert is Professor Emeritus of Physics and former Chair of the Department of Applied Science at New York University. His academic background includes a B.S. (1960) in Aeronautical Engineering from the University of Michigan, Ann Arbor; M.S. (1964) and Ph.D. (1967) from the Polytechnic Institute of Brooklyn (now the Polytechnic Institute of New York) in Astronautics; and a Master of Arts in Liberal Studies, M.A.L.S. (1969) from the New School for Social Research where he did graduate work in sociology and economics. He has been on the research staff of the Curtiss-Wright Corporation, General Applied Science Laboratories, Advanced Technology Laboratories, Riverside Research Institute and National Academy of Sciences Senior Resident Research Associate at the NASA/Goddard Institute for Space Studies. Prof. Hoffert has published broadly in fluid mechanics, plasma physics, atmospheric science, oceanography, planetary atmospheres, environmental science, solar and winds energy conversion and space solar power. His work in geophysics aimed at development of theoretical models of atmospheres and oceans to address environmental issues, including the ocean/climate model first employed by the UN Intergovernmental Panel on Climate Change (IPCC) to assess global warming from different scenarios of fossil fuel use. His early model of the evolving CO2 greenhouse in Mars' atmosphere is also of interest today -- providing both an explanation of Mars' riverbed-like channels f... Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Quantum Computing Day 1: Introduction to Quantum Computing Google Tech Talks December, 6 2007 ABSTRACT This tech talk series explores the enormous opportunities afforded by the emerging field of quantum computing. The exploitation of quantum phenomena not only offers tremendous speed-ups for important algorithms but may also prove key to achieving genuine synthetic intelligence. We argue that understanding higher brain function requires references to quantum mechanics as well. These talks look at the topic of quantum computing from mathematical, engineering and neurobiological perspectives, and we attempt to present the material so that the base concepts can be understood by listeners with no background in quantum physics. This first talk of the series introduces the basic concepts of quantum computing. We start by looking at the difference in describing a classical and a quantum mechanical system. The talk discusses the Turing machine in quantum mechanical terms and introduces the notion of a qubit. We study the gate model of quantum computing and look at the famous quantum algorithms of Deutsch, Grover and Shor. Finally we talk about decoherence and how it destroys superposition states which is the main obstacle to building large scale quantum computers. We clarify widely held misconceptions about decoherence and explain that environmental interaction tends to choose a basis in state space in which the system decoheres while leaving coherences in other coordinate systems intact. Speaker: Hartmut Neven Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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Geoengineering Earth's Climate Google Tech Talks January, 7 2008 Emergency preparedness is generally considered to be a good thing, yet there is no plan regarding what we might do should we be faced with a climate emergency. Such an emergency could take the form of a rapid shift in precipitation patterns, a collapse of the great ice sheets, the imminent triggering of strong climate system feedbacks, or perhaps the loss of valuable ecosystems. Over the past decade, we have used climate models to investigate the potential to reverse some of the effects of greenhouse gases in the atmosphere by deflecting some incoming sunlight back to space. This would probably be most cost-effectively achieved with the placement of small particles in or above the stratosphere. Our model simulations indicate that such geoengineering approaches could potentially bring our climate closer to the state is was in prior to the introduction of greenhouse gases. This talk will present much of what is known about such geoengineering approaches, and raise a range of issues likely to stimulate lively discussion. Speaker: Ken Caldeira Ken Caldeira is a scientist at the Carnegie Institution Department of Global Ecology and a Professor (by courtesy) at the Stanford University Department of Environmental and Earth System Sciences. Previously, he worked for 12 years in the Energy and Environment Directorate at the Lawrence Livermore National Laboratory (Department of Energy). His research interests include the numerical simulation of Earth's climate, carbon, and biogeochemistry; ocean acidification; climate emergency response systems; evaluating approaches to supplying environmentally-friendly energy services; ocean carbon sequestration; long-term evolution of climate and geochemical cycles; and marine biogeochemical cycles. Caldeira has a B.A. in Philosophy from Rutgers College and an M.S. and Ph.D. in Atmospheric Sciences from New York University. Tags: google techtalks techtalk engedu talk talks googletechtalks education |
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