Have "Invisible Anti sound wall" invented by scentists?

Question

for example like room partitions but invisible .At this thechnology we havenot visible wall !!!!! Your voice or sound can not go out of
room !!! with ( i think) narrow stuffs posited titled of partition !
answer if you realy know or if you are phisician.
Does scientists invent it? oct 11,2006

Answer 1

abosolutely invisible and absolutely soundproof, no. However, you can have a room that could be made out of several concentric spheres of glass, some of them affixed to a surface and connected by Iron bolts with rubber grommets. All but the two middle spheres will similarly be connected by Iron bolts and rubber grommets. The air in between these spheres of glass will be evacuated to as much of a complete vacuum as possible. The spheres on the inside would be free floating and placed in the center of the affixed spheres by means of a magnetic field which will act on the iron in the iron bolts. At that point you will reduce tha ability of soundwaves to propogate to almost nil. While the glass is not invisible, it is transparent.