Definition of Chronic Diarrhea Diarrhea (frequent loose bowel movements) is considered as chronic when it lasts for more than 2 weeks (1). Below is a list of main causes of chronic diarrhea with typical >> Read More ...
The spark of WW1 in Europe was the assassination of the Austria-Hungary archduke Franz Ferdinand.
The first reliable spark plug was invented in 1903 by Oliver Lodge. They're aptly named as well; spark plugs are simply insulated plugs that are screwed into an internal combustion engine's cylinder head to deliver the spark that ignites the mixture of air and fuel in the combustion chamber.