Correction

A reader points out that a COMPOSITESWORLD Weekly story on the use of carbon nanotubes for ballistic armor contains an inaccuracy.

A reader points out that the COMPOSITESWORLD Weekly story on the use of carbon nanotubes for ballistic armor contains an inaccuracy (see www.compositesworld.com/news/cwweekly/2007/October/112137). The claim that a carbon nanotube is one atom thick is not true: The wall thickness may be one atom (or may not; nested tubes are common) but the thickness of the tube itself is at least on the order of 6 atoms thick, according to Tom Schwerdt of the Texas Department of Transportation.