The terrorist attacks of September 11, 2001, were traumatic for people living throughout the United States. It has been suggested that people living far from the attacks experienced increased stress because of their exposure to the terrorist events via the media, particularly via television. Following a traumatic or stressful event, individuals may have dreams that reflect that experience. As part of a course on dreaming, individuals recorded their dreams both prior to and following the terrorist attacks of September 11, 2001. On September 12, these same individuals reported their activities and media exposure the previous day. Results revealed (a) changes in dream features following the attacks and (b) a strong relation between exposure to the events on television and changes in dream features after the attacks. Because of the study's within-subjects design, the results provide evidence for a direct association between television viewing and subsequent increases in stress and trauma.

Equations are set up describing the development of longitudinal stress as a function of time in a crystal down-quenched under conditions of plane strain. The effects of heat flow in one and two dimensions and of finite heat transfer coefficients are considered. Numerical results are obtained for NaCI.

The residual mean birefringence in down-quenched NaCl crystals has been calculated from intensity measurements made using a modified densitometer. The distribution of mean longitudinal stress calculated from the birefringence is compared with a theoretical description of the pattern of behaviour.

The development of mean longitudinal stress in down-quenched single crystals of NaCl is studied photoelastically and recorded using high-speed cinephotography. The observations support the model of down-quenching proposed by Keeley et al.