Games with a Purpose Additional Information

You can learn more about Luis von Ahn and his research at www.cmu.edu/cmnews/extra/060918_ahn.html (Carnegie Mellon University) and www.post-gazette.com/pg/03278/228349.stm (Pittsburgh Post-Gazette).

You can try Google Image Labeler, which is based on the ESP Game, at images.google.com/imagelabeler/(Google).

Sohn, Emily. 2004. What video games can teach us. Science News for Kids (Jan. 21).

Available at http://www.sciencenewsforkids.org/articles/20040121/Feature1.asp.

Books recommended by SearchIt!Science:

The Computer— Gayle Worland Published by Capstone Press, 2004. When a computer called Deep Blue beat chess champion Garry Kasparov in a 1997 chess match, people wondered whether computers were going to be smarter than humans. This simple book covers the origin, development, and future of computers. Learn how Blaise Pascal, Charles Babbage, and modern scientists contributed to the development of the computer. Find out how the transistor and the microchip created smaller, faster computers, and read about the development of the personal computer. The book, which includes color photos and diagrams, also explains how a computer works.

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Power Words

computer science The study of the design and the use of computers, especially in science, business, and the arts.

pixel One of the tiny squares or patches that light up in different colors to make up an image on a computer or television screen. Up close, you can see that each tiny pixel is a

single color. From a distance, the thousands of pixels blend together to form natural-looking shapes and colors.

Copyright © 2002, 2003 Houghton-Mifflin Company. All rights reserved. Used with permission.

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