The Link is the magazine of Carnegie Mellon University’s School of Computer Science.

Its name recognizes the pioneering work of two of the School of Computer Science's co-founders, Allen Newell and Herb Simon, who invented the use of linked-list data structures for representing complex information.

But it also serves as the link between the School of Computer Science and more than 10,000 alumni, colleagues, parents and other friends around the world.

From the latest issue:

On Campus: Steady and Sure

Meghan Holohan Wednesday April 15, 2009
The creature crawls on the edge of a dormant volcano called Mauna Kea in Hawaii. As it rolls along, its chassis adjusts to the terrain, moving up and down to help the tires grip the black sandy surface. This beast resembles a bumper car on dirt-bike wheels, but it's no toy. Known as Scarab--because its hull is shaped like a beetle's body--this autonomous robot is a prototype for a lunar rover.Onboard lasers scan the landscape and plot a map that looks like the simulated 3D topography inside a video game. The map will help Scarab find the best route down the steep hillside. 

On Campus: Saying 'Hala' to Hala

Andrea L. Zrimsek Wednesday April 15, 2009
When people enter the new home of Carnegie Mellon Qatar in Doha's Education City, they're often overwhelmed by the structure's beauty. And coming this year, they'll also be greeted with "hello" or "marhaba" from a robot named Hala. 

On Campus: The Stars Align

Karen Hoffmann Wednesday April 15, 2009
Carnegie Mellon Provost Mark Kamlet likes to say that he would have more respect for physicists if they could find out where they misplaced 95 percent of the universe. Behind his joke is a serious question--maybe the most fundamental question facing science today. The vast majority of the universe is made up of dark matter and dark energy, about which very little is known. Future discoveries about the nature and origin of the universe hinge on learning more about these mysterious substances. 

Head of the Class

Jason Togyer Wednesday April 15, 2009
It's a Wednesday morning, and in Christina Levkus' classroom at Steel Valley High School outside Pittsburgh, a group of 10th graders is learning how to derive the measures of the angles in a triangle. They're working on geometry problems using a computerized tutor. Green-colored bars, or "skillometers" (think "thermometers for skill") show how much a student has learned in any given lesson. When an indicator turns gold, the student has mastered that skill.Suddenly, one boy cries out: "This is crazy! Why can't I get any gold bars?"  

Winning Hand

Byron Spice Wednesday April 15, 2009
There's high drama at the 2008 World Series of Poker in Las Vegas: Antic poker pro and 11-time champ Phil Hellmuth is all-in, betting his entire stake on this hand. With one card yet to be dealt, he holds the ace of hearts and queen of diamonds in his hand; the king of diamonds and the three, four and ten of hearts are face up in front of him. 

Research Notebook: Data-Intensive, Scalable Computing

Randy Bryant Wednesday April 15, 2009
Editor's Note: Research Notebook is a new section of The Link where School of Computer Science faculty will write about developments and frontiers in their fields. Randy Bryant, University Professor of Computer Science and Dean of the School of Computer Science, inaugurates this feature with a discussion of data-intensive, scalable computing.  

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