In article ,
(Larry Blanchard) wrote:

In article ,
says...
Tempered glass under stress can be shattered by vibration, I think
the culprit is low frequency. At least the examples I know of (none
of which have been tanks) have been associated with things like heavy
lorries going past.


Oh great! What about the idiots with the 6 foot bass speakers in their
cars? We've got one that goes by every night about 5pm.

You're probably OK with any music system. The bass bin might be able to
cope, but CD and tape simply can't produce the really low frequencies.

Roger Sleet
Roger's Aquatic Pages http://www.sleet.plus.com