1 Gases consist of large numbers of molecules (or atoms, in the case of the noble gases) that are in continuous, random motion. 2  The volume of all the molecules of the gas is negligible compared to the total volume in which the gas is contained.  Attractive and repulsive forces between gas molecules is negligible.
Medical authorities say that Olympic sprint champion Florence Griffith Joyner died of suffocation month ago after suffering seizure while she slept; say seizure was caused by congenital abnormality of blood vessels in her brain (M)
Fukumoto said if someone had witnessed Griffith Joyner's seizure, they may have been able to save her life by turning her body so air could get into her lungs. Al Joyner called for help when he found his wife of 12 years unresponsive.