What was the architectural device that was a clear technical advance over the device used by the Greeks?

Culinary arts- a serving of seafood appetizers is arranged on a bed of ice. dipping sauces are in the center with a tiny spoon for dishing them out. what technique did the chef apply to make the arrangements? the chef applied the technique to make the arrangements

Continuous body definition government

What type of sound does a director of a theatrical prodyction not want?