8th Grade Inventor Research 2014

The digital compact disc, now commonplace in stereos and computers, was invented in the late 1960s by James T. Russell.

Russell was born in Bremerton, Washington in 1931.

In the 1940s, a Belgian chemist mixed carbolic acid and formaldehyde to create the first synthetic adhesive. Post-it Notes use a more recent innovation: Unlike the typical, featureless adhesive surface, the Post-it Note glue coats the notes with bumpy microspheres that limit the sticky area. The adhesive mostly consists of alkyl acrylate, a volatile liquid that dissolves slightly in water and completely in alcohol. More detailed ingredients remain private. The paper used to make Post-it Notes is certified by the Sustainable Forestry Initiative, a system founded by the U.S. paper industry. Although SFI certification ensures that a company has an environmental management system in place, most environmental groups prefer the international non-profit Forest Stewardship Council's more stringent performance-based environmental and social indicators.