From Jürgen Altmann, University of Dortmund
Ian Sample states that there is no reliable evidence for
infrasound causing nausea or vomiting
(17 November, p 24).
In fact, there is reliable evidence that infrasound does not cause these effects
(see my paper on acoustic weapons in Peace Studies Program,
Cornell University, 1999).
Also, I am quoted as warning that this device could cause temporary hearing
loss in other passengers, should it be used on a plane. I actually warned about
permanent hearing loss, since I fear that within an aircraft, a sound pulse at
levels of 140 decibels would not only hit the ear of the terrorist. The beam
could reflect, creating hot spots elsewhere in the plane where the full strength
of the beam would also be heard.
Even taking this into account, you cannot dismiss the weapon out of hand.
Loss of hearing is preferable to death by explosion or crash. Detailed
independent study is needed.
Germany
