super glue was discovered by accident during development research on what
Harry Coover In 1942, while searching for materials to make clear plastic gun sights, Coover and his team at Eastman Kodak examined cyanoacrylates, a material that was used during both World Wars (1914-1918; 1939-1945) as an alternative to stitches on large cuts and wounds,[citation needed] rejecting them as too sticky. Nine years later, Coover was overseeing Kodak chemists investigating heat-resistant polymers for jet canopies when cyanoacrylates were once again tested and proved too sticky. That time around, however, Coover recognized that he had discovered a unique adhesive. In 1958, the adhesive, marketed by Kodak as Super Glue, was introduced for sale.[4]
Paper clip According to the Early Office Museum, the first patent for a bent wire paper clip was awarded in the United States to Samuel B. Fay, in 1867. This clip was originally intended primarily for attaching tickets to fabric, although the patent recognized that it could be used to attach papers together.[1] Fay received U.S. patent 64,088 on April 23, 1867. Although functional and practical, Fay's design along with the 50 other designs patented prior to 1899 are not considered reminiscent of the modern paperclip design known today.[2] Another notable paper clip design was also patented in the United States by Erlman J. Wright in 1877. This clip was advertised at that time for use in fastening newspapers.[1]