Tuesday, June 17, 2008
It ain't over until the cone of silence descends on the fat lady
I've been following the developments in acoustic cloaking for some time now. The utility of hiding a noisy presence on the concert stage or orchestra pit, in a recording studio or a stealth vehicle, or just for sound-proofing your garret, lair, or garage seems obvious to me. Here's a popular account of one of the most recent developments, a purely acoustic cloaking structure. Here's the research paper proper. You've got to love a physics paper discussing isotropic acoustic metamaterials and sonic crystals.