Petri dish Petri dish A Petri dish (sometimes spelled "Petrie Dish" and alternatively known as a Petri plate or cell-culture dish), named after the German bacteriologist Julius Richard Petri, is a shallow cylindrical glass or plastic lidded dish that biologists use to culture cellssuch as bacteriaor small mosses. Modern Petri dishes usually feature rings and/or slots on their lids and bases so that when stacked, they are less prone to sliding off one another. Multiple dishes can also be incorporated into one plastic container to create a "multi-well plate". While glass Petri dishes may be reused after sterilization (via an autoclave at
The Transparent Society The Transparent Society The Transparent Society (1998) is a non-fiction book by the science-fiction author David Brin in which he forecasts social transparency and some degree of erosion of privacy, as it is overtaken by low-cost surveillance, communication and database technology, and proposes new institutions and practices that he believes would provide benefits that would more than compensate for lost privacy. The work first appeared as a magazine article by Brin in "Wired" in late 1996. In 2008, security expert Bruce Schneier called the transparent society concept a "myth" (a characterization Brin later rejected), claiming it ignores wide differences in