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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 !
Change the target language to find translations.
Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.
|David Morris Lee|
January 20, 1931 |
Rye, New York
Texas A&M University (2009-present)
|Alma mater||Yale University
University of Connecticut
|Doctoral advisor||Henry A. Fairbank|
|Notable awards||Nobel Prize in Physics (1996)
Oliver Buckley Prize (1981)
Sir Francis Simon Memorial Prize (1976)
David Morris Lee (born January 20, 1931) is an American physicist who shared the 1996 Nobel Prize in Physics with Robert C. Richardson and Douglas Osheroff "for their discovery of superfluidity in helium-3."
Lee was raised in Rye, New York. His parents were children of Jewish immigrants from England and Lithuania. He graduated from Harvard University in 1952 and then joined the U.S. Army for 22 months. After being discharged from the army, he obtained a Masters degree from the University of Connecticut. In 1955 Lee entered the Ph.D. program at Yale University where he worked under Henry A. Fairbank in the low-temperature physics group, doing experimental research on liquid 3He.
After graduating from Yale in 1959, Lee took a job at Cornell University, where he was responsible for setting up the new Laboratory of Atomic and Solid State Physics. Shortly after arriving at Cornell he met his future wife, Dana, then a PhD student in another department; the couple went on to have two sons.
The work that led to Lee's Nobel Prize was performed in the early 1970s. Lee, together with Robert C. Richardson and graduate student, Doug Osheroff used a Pomeranchuk cell to investigate the behaviour of 3He at temperatures within a few thousandths of a degree of absolute zero. They discovered unexpected effects in their measurements, which they eventually explained as phase transitions to a superfluid phase of 3He. Lee, Richardson and Osheroff were jointly awarded the Nobel Prize in Physics in 1996 for this discovery.
Lee's research also covered a number of other topics in low-temperature physics, particularly relating to liquid, solid and superfluid helium (4He, 3He and mixtures of the two). Particular discoveries include the antiferromagnetic ordering in solid helium-3, nuclear spin waves in spin polarized atomic hydrogen gas with Jack H. Freed, and the tri-critical point on the phase separation curve of liquid 4He-3He, in collaboration with his Cornell colleague John Reppy. His former research group at Cornell currently studies impurity-helium solids.
As well as the Nobel Prize, other prizes won by Lee include the 1976 Sir Francis Simon Memorial Prize of the British Institute of Physics and the 1981 Oliver Buckley Prize of the American Physical Society along with Doug Osheroff and Robert Richardson for their superfluid 3He work.
Lee is currently teaching physics at Texas A&M University and continuing his (formerly Cornell-based) research program there as well.