A tragichero or tragic heroine is the protagonist of a tragedy. Aristotle shared his view of what makes a tragichero in his Poetics. Aristotle suggests that a hero of a tragedy must evoke in the audience a sense of pity or fear, saying, “the change of fortune presented must not be the spectacle of a virtuous man brought from prosperity to adversity." Macbeth is a perfect example of a tragic hero, for that very reason, not to mention he dies at the end of the play. Macbeth's fatal flaw<span> in the play is unchecked ambition, that is a desire for power and position, namely to be king, which is more important to him than anything else in life.</span>
Few advancements in scientific knowledge were made. Scientists discovered new evidence to support their theories. Scientists discovered that old interpretations of data was incorrect. Scientists used observations and mathematical data to solve problems in new ways.
