Cell culture molecular biology primarily involves cultures of cells on flat plastic dishes. This technique is known as two-dimensional (2D) cell culture, and was first developed by Wilhelm Roux who, in 1885, removed a portion of the medullary plate of an embryonic chicken and maintained it in warm saline for several days on a flat glass plate. From the advance of polymer technology arose today's standard plastic dish for 2D cell culture, commonly known as the Petri dish. Julius Richard Petri, a German bacteriologist, is generally credited with this invention while working as an assistant to Robert Koch. Various researchers today also
Pot With a Lid, Tricolor (16th-15th centuries BC, Karashamb) resembling waves. The lid is round, grooved, decorated by four triangles equally composing a cross image. In the intersection of the wings of the cross, there is a hole. Pot With a Lid, Tricolor (16th-15th centuries BC, Karashamb) Top With a Lid, Tricolor, from the 16th - 15th centuries BC was discovered in Karashamb. It is included in the History Museum of Armenia's collection under the number 3060-200. The pot is in the form of a barrel. The lip is straight, broken, and has two pairs of holes at the edge for hanging. Its surface is black, sealed, polished, and