Galvanic corrosion is a process that degrades metals electrochemically. This corrosion occurs when two dissimilar metals are located in contact with each other in the presence of an electrolyte, such as salt water, forming a galvanic cell.
But the memories of that tragic day 25 years ago are still vivid to many in Edmond. On Aug. 20, 1986, gunman Patrick Henry Sherrill shot and killed 14 co-workers, wounded six and then took his own life inside the post office where he worked.
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.