There's enough talk about explosives in the media to have a person worried. Not worried enough, it seems, are some people handling the liquid explosive we use every day: gasoline. Understanding the hazards of this substance requires knowing about its physics.
I subscribe to an online wine news service that delivers a couple of times a week some fascinating stories or statistics about happenings in the giddy world of wine. I'm passing along some condensed versions with my own comments.