“The idea also can be used to design the acoustics of a building or a room by shaping sound differently. Imagine being able to eliminate the sound that reflects off of objects. Auditoriums and studios could be designed in a whole new way.”
read more…
http://www.informationweek.com/news/showArticle.jhtml?articleID=205602773
Sound-Cloaking Technology
Focused Lethality -Small Diameter Bomb – SDB
This is a video about a military technology called the SDB - http://www.liveleak.com/view?i=078_1200140444
Specifications
Length: 70.8 in (1.8 m).
Width: 7.5 in (19 cm).
Weapon weight: 285 pounds (130 kg).
Warhead: 206 lb (93 kg) penetrating, blast fragmentation.
50 lbs (23kg) of high explosive.
Warhead penetration:
“six feet of reinforced concrete.
“more than three feet (1 m) of steel-reinforced concrete”.
Fuse: Electronic safe and fire (ESAF) [...]
