If the reactor is critical, then inserting the control rods makes the reactor subcritical and power will decrease. If the control rods are withdrawn, the reactor becomes supercritical and power increases. We employ small movements to ensure that power changes at a controlled rate. If necessary, when the control rods are fully inserted or perhaps 80-90 percent inserted, the reactor shuts down.
In brief, ârhetoricâ is any communication used to modify the perspectives of others. But this is a very broad definition that calls for more explanation. The OWLâs âIntroduction to Rhetoricâ vidcast explains more what rhetoric is and how rhetoric relates to writing.
Definition: In rhetorical studies and communication studies, the information conveyed by (a) words (in speech or writing), and/or (b) other signs and symbols. A message (verbal or nonverbal--or both) is the content of the communication process. 1  Bad-News Message. 2  Body Language. 3  Conversation. 4  Feedback.