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Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !
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Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.
|Shu Hsia-San (徐遐生)
June 2, 1943 |
Stony Brook University
National Tsing Hua University (2002–2006)
UC San Diego
|Doctoral students||Jack Lissauer |
|Notable awards||Bruce Medal (2009)|
Frank Shu (Chinese: 徐遐生) (born June 2, 1943), is an American astrophysicist, astronomer and author. He is currently professor of astronomy at the University of California, Berkeley and University of California, San Diego and the university president of the National Tsing Hua University.
Shu's hometown is Yongjia County, in Wenzhou of Zhejiang. Shu's father, Shien-Siu Shu (S.S.Shu, 徐賢修), was a mathematician and former President (1970–1975) of the National Tsing Hua University. Shu completed his Shu served as chair of the astronomy department of UC Berkeley from 1984 until 1988, and has held faculty appointments at the SUNY Stony Brook and UC Berkeley. He was president of the National Tsing Hua University from February 2002 until February 2006. He joined the faculty at UC San Diego as a distinguished professor of physics in 2006 and also holds the title of University Professor, a UC system-wide honor reserved for scholars of international distinction who are recognized as teachers of exceptional ability. He also is a university professor emeritus at UC Berkeley.
From 1994 to 1996, Shu was the President of the American Astronomical Society (AAS).
Shu is known for pioneering theoretical work in a diverse set of fields of astrophysics, including the origin of meteorites, the birth and early evolution of stars and the structure of spiral galaxies. One of his most highly-cited works is a 1977 seminal paper describing the collapse of a dense giant molecular cloud core which forms a star. This model (commonly referred to as the "inside-out" collapse model or the "singular isothermal sphere" model) helped provide the basis for much later work on the formation of stars and planetary systems, although it has been criticized for its shortcomings. The model starts from a singular isothermal sphere, collapses from inside-out, and applies self-similarity. The major drawback is that it is unstable and therefore unphysical as an initial condition, though, it demonstrates much of the physics and is the only existing analytic model. Shu has also performed calculations on the structure of planet-forming disks around very young stars, the jets and winds that these stars and their disks generate, and the production of chondrules, inclusions in meteorites. Much of this work has been done in collaboration with his postdocs and graduate students, many of whom have gone on to successful academic careers in their own right.
Shu is the author of several books, among them Physical Universe: An Introduction to Astronomy (University Science Books, 1982) which has become one of the standard textbooks for undergraduate astrophysics courses all over the world, while the two volumes The Physics of Astrophysics Vol. I: Radiation (University Science Books, 1991) and The Physics of Astrophysics Vol. II: Gas Dynamics (University Science Books, 1992) are classical texts commonplace in astrophysics graduate curricula as well as recommended by the Harvard-Smithsonian Center for Astrophysics.
Chung Laung Liu
|President of National Tsing Hua University