Paul Rothemund and Colleagues Use Self-Assembled DNA Scaffolding to Build Tiny Circuit Boards
08-18-09
Dr. Paul Rothemund, Senior Research Associate in Bioengineering, Computer Science, and Computation and Neural Systems, and colleagues have developed a new technique to orient and position self-assembled DNA shapes and patterns--or "DNA origami"--on surfaces that are compatible with today's semiconductor manufacturing equipment. They "have removed a key barrier to the improvement and advancement of computer chips. They accomplished this through the revolutionary approach of combining the building blocks for life with the building blocks for computing," said Professor Ares Rosakis, Chair of Division of Engineering and Applied Science and Theodore von Kármán Professor of Aeronautics and Mechanical Engineering. [Caltech Press Release]
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Paul Rothemund
Tapio Schneider and Colleagues Discover Storms in the Tropics of Titan
08-12-09
Tapio Schneider, Professor of Environmental Science and Engineering, and his colleagues have discover storms on Saturn's largest moon, Titan, which is generally "a very bland place, weatherwise," says Mike Brown, Richard and Barbara Rosenberg Professor and Professor of Planetary Astronomy. "The first cloud was seen near the tropics and was caused by a still-mysterious process, but it behaved almost like an explosion in the atmosphere, setting off waves that traveled around the planet, triggering their own clouds. Within days a huge cloud system had covered the south pole, and sporadic clouds were seen all the way up to the equator." Schneider, an expert on atmospheric circulations, was instrumental in helping to sort out the complicated chain of events that followed the initial outburst of cloud activity. [Caltech Press Release]
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Tapio Schneider
John Dabiri and Kakani Katija Link Tiny Sea Creatures to Large-scale Ocean Mixing
07-29-09
John Dabiri, Assistant Professor of Aeronautics and Bioengineering, and graduate student Kakani Katija have discovered a new mechanism that explains how some of the ocean's tiniest swimming animals can have a huge impact on large-scale ocean mixing. Dabiri describes, "we've been studying swimming animals for quite some time, the perspective we usually take is that of how the ocean—by its currents, temperature, and chemistry—is affecting the animals. But there have been increasing suggestions that the inverse is also important—how the animals themselves, via swimming, might impact the ocean environment." Ares Rosakis, the Theodore von Kármán Professor of Aeronautics and Mechanical Engineering and chair of the EAS Division described the research as, "truly reflective of the type of exciting, without-boundaries research at which Caltech engineering professors excel." [Caltech Press Release]
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John Dabiri