Important information regarding the recent AMS power outage.

The transformer that provides electricity to the AMS building in Providence went down on Sunday, April 22. The restoration of our email, website, AMS Bookstore and other systems is almost complete. We are currently running on a generator but overnight a new transformer should be hooked up and (fingers crossed) we should be fine by 8:00 (EDT) Wednesday morning. This issue has affected selected phones, which should be repaired by the end of today. No email was lost, although the accumulated messages are only just now being delivered so you should expect some delay.

Thanks for your patience.



Mathematical Digest


Short Summaries of Articles about Mathematics
in the Popular Press

"Forecast: Hazy (with 50% chance of error)," by John Marchese.Discover, June 2001.

The article quotes weather service director Jack Kelly as declaring, "Numericalweather modeling is the most unsung scientific achievement of the 20thcentury." But although weather forecasts have become more accurate with moredata collection and computer modeling, the fact remains that meteorologists arediagnosticians. They must ultimately use their experience and instincts alongwith what computer models predict. The author explains a discovery made bymeteorologist Edward Lorenz in 1961, which inspired a new field of mathematics:chaos theory, in which very small changes in initial conditions can have verylarge and unexpected results. Richard Anthes, current President of theUniversity Corporation for Atmospheric Research, believes that more and newtechnology will overcome chaos in weather modeling. He thinks that the federalgovernment must develop and launch hundreds of new satellites, that a massiveincrease in data collection is needed, that models need to better translate thefluid motion of the skies, and that more computers and computer power arenecessary.

--- Annette Emerson

American Mathematical Society