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)
Dr. Joy Browne.Dr. Joy Browne/Facebook. New Orleans native Dr. Joy Browne, a syndicated radio and television psychologist, has died in New York City, according to her daughter. Browne was 71. Patience Browne said her mother died Saturday but didn't give a cause of death.