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.
"Lava lamp randomness," by Ivars Peterson. Science News, 9 August 1997,page 92.
The "lava lamp" has become a kitsch icon of the 1970s. Now, researchers haveturned to the meandering, unpredictable movements of a lava lamp's coloredblobs in order to improve random number generators. Such generators producerandom numbers by carrying out a set of procedures on a "seed number"; if fedthe same seed number a second time, the generator will produce the same stringof digits. Varying the seed numbers is therefore important. The movements ofthe blobs in the lava lamp were an inspiration for researchers to come up witha new way of randomly varying the seed numbers.
--- Allyn Jackson