A redshift can be created by several mechanisms; one that is of great interest to astronomers is the Doppler effect: if an object comes towards us, or goes away from us, the frequence of the light we receive from that object, changes.
The traditional "inventer" of baseball was, supposedly, Abner Doubleday, but it in question whether he actually invented the game. The game probably evolved from the English game of Rounders. A form...
Kodak and several of the major camera manufacturers were involved in developing digital xcameras. The came on the market in the late 1980s./early 1990s.