Rambo Tribble writes: The commercial aviation industry is scrambling to get ahead of a new threat to air travel, burning or exploding lithium batteries. As portable devices have become more popular, improperly stored or defective lithium batteries have caused a number of incidents on airliners. The BBC article includes a short video showing the remarkably violent force even a small battery can produce. Important safety tip: this is one electrical fire you want to fight with water.
"A complex system that works is invariably found to have evolved from a simple
system that worked."
-- John Gall, _Systemantics_