"time reversal acoustics"
I found this off a link from Schneier's newsletter. Can anybody comment on this? Udhay http://www.physorg.com/news12093.html For every burst of sound, there must exist a sound that bursts in reverse, according to the theory of time reversal acoustics. From their discoveries of some surprising characteristics of mediums and frequencies, scientists have gained insight into acoustic time reversal, which could impact applications such as sending confidential messages in cryptography. -- ((Udhay Shankar N)) ((udhay @ pobox.com)) ((www.digeratus.com)) - The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
There is a typo on the "Kryptos" sculpture.
NY Times, April 22, 2006 A Break for Code Breakers on a C.I.A. Mystery By KENNETH CHANG For nearly 16 years, puzzle enthusiasts have labored to decipher an 865-character coded message stenciled into a sculpture on the grounds of the Central Intelligence Agency's headquarters in Langley, Va. This week, the sculptor gave them an unsettling but hopeful surprise: part of the message they thought they had deciphered years ago actually says something else. http://www.nytimes.com/2006/04/22/us/22puzzle.html -- Perry E. Metzger[EMAIL PROTECTED] - The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
