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.
One of the most controversial episodes of the Watergate scandal, the so-called âSaturday Night Massacreâ came on October 20, 1973, when embattled President Richard Nixon fired Special Prosecutor Archibald Cox and accepted the resignations of Attorney General Elliot Richardson and Deputy Attorney General William Ruckelshaus.