Plays are generally classified into one of two categories: tragedies or comedies. Each of these two categories possesses a particular set of conventions and characteristics that can be used to identify plays as either a tragedy or a comedy. On the surface, The Crucible appears to be a tragedy. Decide whether you agree with this classification of the play. If you do, identify the elements of the play that render it tragic. If you do not agree that The Crucible is a tragedy, or if you feel that it is a hybrid, then defend your position with evidence drawn directly from the text. For help with this, be sure to look at the , Death of a Salesman, for similar themes.
WSN nodes resource constrained. In order to keep the size and the cost of the nodes down, the nodes have limited processing power, memory and radio range. However, the resource constraint which has the most significant impact on many WSNs is the constraint on energy. WSN nodes are battery operated. Many wireless sensor networks are deployed in locations where battery replacement is not feasible. A node has to be discarded when the battery depletes. Energy scavenging may alleviate this problem in some sensor networks. Most WSN protocols are very conscious of the limited supply of energy, and try to conserve energy.