The Miracle and Beauty of Physics: An Interview with Cliff Cheung

When you lift a paper clip off a table with a small magnet, you're accomplishing a remarkable feat: the tiny magnet is overcoming the gravitational pull from the entire Earth. Why does gravity seem so weak compared to electromagnetism and the other fundamental forces of nature? This vast discrepancy in scale—how a small magnet can beat out a whole planet—is related to what physicists call the hierarchy problem. Cliff Cheung—who joined Caltech this fall as an assistant professor of theoretical physics—is fascinated by this "very deep puzzle" (which may be solved through supersymmetry, a class of theories in which every fundamental particle has a partner particle, as well as by dark matter, the mysterious stuff that accounts for nearly a quarter of the universe). Recently, Cheung—who also plays guitar and piano, sings, and writes music—answered a few questions about coming to Caltech and his passion for physics.

A Sky Full of Planets

The confirmed count of planets in other solar systems has skyrocketed to more than 850, plus thousands of identified candidates. The opportunity to characterize so many solar systems has brought together Caltech planetary scientists and astronomers, who are forming a Center for Planetary Astronomy.

High-Energy Physicists Smash Records for Network Data Transfer

Physicists led by the California Institute of Technology (Caltech) have smashed yet another series of records for data-transfer speed. The international team of high-energy physicists, computer scientists, and network engineers reached a transfer rate of 339 gigabits per second (Gbps)—equivalent to moving four billion gigabytes per day, nearly doubling last year's record. The team also reached a new record for a two-way transfer on a single link by sending data at 187 Gbps between Victoria, Canada, and Salt Lake City.
Tuesday, April 9, 2013
Avery Library

Spring Teaching Assistant Orientation

Caltech Faculty Named AMS Fellows

Nine members of Caltech's faculty have been named to the inaugural class of Fellows of the American Mathematical Society (AMS).

Caltech Mourns the Passing of Wallace L. W. Sargent

Wallace L. W. Sargent, Ira S. Bowen Professor of Astronomy, Emeritus, at Caltech, passed away on October 29.

Two Faculty Members Named Packard Fellows

Two Caltech faculty members have been awarded Packard Fellowships for Science and Engineering. Biologist Alexei Aravin and astronomer John Johnson each were awarded $875,000, to be distributed over five years.

"I'm very excited about this fellowship," says Aravin, an assistant professor of biology. "It will allow my lab to pursue new, ambitious goals that are difficult to fund using traditional sources."

Noted Physicist Robert F. Christy Dies

Robert F. Christy, one of the last people alive to have worked on the Manhattan Project and whose later research in astrophysics contributed to our understanding of the size of the universe, passed away on October 3 at his home in Pasadena. The former provost and acting president of the California Institute of Technology (Caltech), where he was a longtime professor, was 96 years old.

Caltech Again Named World's Top University in <i>Times Higher Education</i> Global Ranking

PASADENA, Calif.—The California Institute of Technology (Caltech) has been rated the world's number one university in the 2012–2013 Times Higher Education global ranking of the top 200 universities.

Oxford University, Stanford University, Harvard University, and MIT round out the top five.

Caltech Faculty Members Honored by <i>Popular Mechanics</i>

Caltech engineers and scientists often work at the frontiers of science—pushing the limits of what is known and what is possible. Now, with its eighth annual Breakthrough Awards, Popular Mechanics magazine is recognizing two projects that fall into this category and in which Caltech faculty members have played major roles—the development of ultralight micro-lattices by materials scientist Julia Greer and colleagues, and the Voyager 1 and 2 missions, whose project scientist, physicist Ed Stone, has been at Caltech for the missions' entire 35-year ride.

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