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.
In 1835, Henry Ellsworth (a Yale classmate of Samuel Morseâs) was appointed the first Commissioner of the U.S. Patent Office, where he quickly became a champion of American inventions, supporting the development of Samuel Coltâs revolver among other projects.