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
What Is the Matter with Willi? 1972. What Is the Matter with Willi? What Is the Matter with Willi? (German:Was ist denn bloß mit Willi los) is a 1970 German comedy film directed by Werner Jacobs and starring Heinz Erhardt, Ralf Wolter and Ruth Stephan. A tax inspector tries to reform the Ministry of Finance. It was based on a character Heinz Erhardt played on television. It was followed by a loose sequel "That Can't Shake Our Willi!" and in 1971 a third film "Our Willi Is the Best" was made with Erhard returning as Willi. The final film "Willi Manages The Whole Thing" was released