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 World Is Flat that is flat, but Thomas Friedman's 'brain' is flat". Some critics have pointed out that the book is written from an American perspective. Friedman's work history has been mostly with "The New York Times", and that may have influenced the way the book was written – some would have preferred a book written in a more "inclusive voice". Nobel Prize-winning economist Joseph Stiglitz has been critical of Friedman's book: Richard Florida expresses similar views in his 2005 "Atlantic" article "The World Is Spiky". John Gray, formerly a School Professor of European Thought at the London School of Economics and Political