Ilan Greenberg, Author at ¿ìè¶ÌÊÓƵ Science news and science articles from ¿ìè¶ÌÊÓƵ Fri, 03 Jul 1998 23:00:00 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.1 242057827 Echoes from the deep /article/1850419-echoes-from-the-deep/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Fri, 03 Jul 1998 23:00:00 +0000 http://mg15921415.600 1850419 Sounds impossible – Reconstructing a sound source from the waves it produces takes nothing less than a mirror that makes time run backwards. Ilan Greenberg discovers how it’s done /article/1847631-sounds-impossible-reconstructing-a-sound-source-from-the-waves-it-produces-takes-nothing-less-than-a-mirror-that-makes-time-run-backwards-ilan-greenberg-discovers-how-its-done/?utm_campaign=RSS|NSNS&utm_content=currents&utm_medium=RSS&utm_source=NSNS Sat, 29 Nov 1997 00:00:00 +0000 http://mg15621105.000 1847631