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 Culture (also usable as capable combat drones when without living occupants) are used in "Matter". The inner workings of The Culture are not especially described in detail though it is shown that the society is populated by an empowered, educated and augmented citizery in a direct democracy or highly democratic and transparent system of self-governance. In comparisons to the real world, intended or not, the Culture could resemble various posited egalitarian societies including in the writings of Karl Marx: the end condition of communism after a withering away of the state, the anarchism of Bakunin and Fourier et al, libertarian socialism,