Web watch

To suggest topics or sites for Web Watch, please visit http://www.physicstoday.org/suggestwebwatch.html . Compiled and edited by Charles Day

http://www.physics.umd.edu/perg/fermi/fermi.htm

Enrico Fermi’s ability to make quick, rough estimates has inspired the University of Maryland’s Physics Education Research Group to compile a set of Fermi Problems. A sample question: “How many pencils would it take to draw a straight line along the entire Prime Meridian of the earth?”

http://twitter.com/AIP_Publishing

The American Institute of Physics is now using the popular short-message service Twitter. By following AlP’s tweets, you can keep up to date on AlP’s publishing and media activities.

http://www.mrs.org/s_mrs/sec.asp?CID=1803&DID=68724

From the Materials Research Society comes Materials360 Plus, an online source of news and information about understanding, making, and using materials, both new and old.