A form of apparatus often used for testing specimens of steel consists of a small electric furnace in which to heat the specimen, and a special thermo-couple pyrometer (see  Pyrometers ) for indicating the range of temperatures through which the steel passes.
Where the American Civil War Began. Decades of growing strife between North and South erupted in civil war on April 12, 1861, when Confederate artillery opened fire on this Federal fort in Charleston Harbor. Fort Sumter surrendered 34 hours later. Union forces would try for nearly four years to take it back.
First Shot of the Civil War. Civil War Harper's Weekly, January 26, 1861. The January 26, 1861 edition of Harper's Weekly featured the following illustration, showing the First Shot of the Civil War. The first shot was fired on January 10, 1861. It was fired by the South Carolinians on Morris Island. They fired on the Union Ship Star of the West as it attempted to reinforce Major Anderson at Fort Sumter.