What became a major form of wall decoration during the ROmannesque period?why?

According to the article in wiki answer, digital communication systems have more benefits than analog systems. they are faster and more flexible, and they offer better performance than analog communication

Read the excerpt from the building of manhattan. the heater cranked the blower handle to force air up through the fire and heat the rivets in the furiously burning bed of coals. he knew how hot the rivets were by the way their color changed. cherry-red rivets were 1,000 to 1,950 degrees fahrenheit. at the right moment he grabbed one in his tongs and tossed it to the catcher. which phrase cannot be changed in a paraphrase of this text? “the furiously burning bed of coals” “by the way their color changed” “1,000 to 1,950 degrees fahrenheit” “force air up through the fire and heat”

This medium typically is made of graphite, a crystalline form of carbon: