why is agar used as a solidifying agent in culture media
Agar Agar exhibits hysteresis, melting at 85 °C (358 K, 185 °F) and solidifying from 32–40 °C (305–313 K, 90–104 °F).[21] This property lends a suitable balance between easy melting and good gel stability at relatively high temperatures. Since many scientific applications require incubation at temperatures close to human body temperature (37 °C), agar is more appropriate than other solidifying agents that melt at this temperature, such as gelatin.
Agitprop It gave rise to agitprop theatre, a highly politicized left-wing theatre that originated in 1920s Europe and spread to the United States; the plays of Bertolt Brecht are a notable example.[5] Russian agitprop theater was noted for its cardboard characters of perfect virtue and complete evil, and its coarse ridicule.[6] Gradually the term agitprop came to describe any kind of highly politicized art.