An Incredible Shrinking Material

They shrink when you heat 'em. Most materials expand when heated, but a few contract. Now engineers at the California Institute of Technology (Caltech) have figured out how one of these curious materials, scandium trifluoride (ScF3), does the trick—a finding, they say, that will lead to a deeper understanding of all kinds of materials. 


Early Years of GALCIT Featured in New Display

The Guggenheim Aeronautical Laboratory at the California Institute of Technology (GALCIT) was a key component in the success of the Southern California aeronautic industry, which took flight in the 1920s. Working Together, Learning to Fly is a historical look at the research and industry collaborations at Caltech during the early years of GALCIT and is currently on display at Parsons-Gates Hall of Administration. 


Caltech Retains Top Spot in Engineering and Technology Rankings

In addition to their recent ranking of Caltech as first among world universities, for the second consecutive year the Times Higher Education has also ranked the Institute first for its engineering and technology programs.

Caltech Engineer Receives Popular Mechanics Award

Each year, Popular Mechanics magazine honors inventors, engineers, and researchers with Breakthrough Innovator Awards for their significant advances in medicine, technology, entertainment, and more. At a ceremony in New York City on October 10, Caltech engineer Joel Burdick was among the recipients of a Breakthrough Award for his work that helped a paralyzed man stand. The awards are in recognition of "innovators whose inventions will make the world smarter, safer, and more efficient in the years to come."

Caltech Named World's Top University in New Times Higher Education Global Ranking

Caltech has been rated the world's number one university in the 2011–2012 Times Higher Education global ranking of the top 200 universities, displacing Harvard University from the top spot for the first time in the survey's eight-year history. 

Caltech Team Uses Laser Light to Cool Object to Quantum Ground State

For the first time, researchers at Caltech, in collaboration with a team from the University of Vienna, have managed to cool a miniature mechanical object to its lowest possible energy state using laser light. The achievement paves the way for the development of exquisitely sensitive detectors as well as for quantum experiments that scientists have long dreamed of conducting.

Caltech Engineers Build Smart Petri Dish

The cameras in our cell phones have dramatically changed the way we share the special moments in our lives, making photographs instantly available to friends and family. Now, the imaging sensor chips that form the heart of these built-in cameras are helping engineers at the California Institute of Technology (Caltech) transform the way cell cultures are imaged by serving as the platform for a "smart" petri dish. 

Caltech-Led Engineers Solve Longstanding Problem in Photonic Chip Technology

Stretching for thousands of miles beneath oceans, optical fibers now connect every continent except for Antarctica. But although optical fibers are increasingly replacing copper wires, carrying information via photons instead of electrons, today's computer technology still relies on electronic chips. Now, researchers led by engineers at the Caltech are paving the way for the next generation of computer-chip technology: photonic chips.

Caltech Engineers Develop One-way Transmission System for Sound Waves

While many hotel rooms, recording studios, and even some homes are built with materials to help absorb or reflect sound, mechanisms to truly control the direction of sound waves are still in their infancy. However, researchers at the California Institute of Technology (Caltech) have now created the first tunable acoustic diode-a device that allows acoustic information to travel only in one direction, at controllable frequencies.

Caltech, Zcube Collaboration Will Bring Painless Transdermal Drug Delivery to Patients

Zcube Srl, a research venture of the Italian pharmaceutical company Zambon, and Caltech have signed an exclusive research and option agreement to develop and commercialize skin patches that contain embedded carbon nanotubes for delivering drugs.


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