Soundless Sound System
 

[url]http://story.news.yahoo.com/news?tmpl=story&cid=562&e=2&u=/ap/hypersonic_sound[/url]

This sounds really cool and expensive. I bet that it would be awsome to use to watch movies and play ps2 with.

Re: Soundless Sound System
 

yeah, its actually not that expensive to make, it uses super high frequencies to rattle your skull or whatever ;) (higher freq noises have a much narrower focus, 20hz projects 270 degrees, every octave up is 35 degrees less... 40hz is 235, 80hz is 200 etc etc)

its like an audio laser :)