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 If the control rods are withdrawn, the reactor becomes supercritical and power increases.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.
Rhetorical Context. Rhetorical context refers to the circumstances surrounding any writing situation and includes purpose, audience, and focus. Think of a particularly troublesome writing assignment you've faced. You might have had trouble even knowing how to begin. Similarly, you may have heard students complain that they don't know what to write.