<span>To suggest the narrators deep fear of the snake</span>
Marilyn in 'The Cold Equation' is a GOOD person.
Marilyn is an innocent but ignorant eighteen years old girl who had not seeing her brother for ten years. She believed hiding in the Stardust ship, which is going to the place where here brother lives is a good mean of seeing her brother again. She had good thoughts and good intention but was not aware of how her presence in the ship will negatively affect and jeopardize the lives of others on aboard the ship.
“Yet I see/ Thy honourable mettle may be wrought”
Answer:
Bradbury´s opening uses the literary device of personification by granting a human trait (the capacity to tremble because of weakness) to a non-living thing (the sign on the wall). This sentence also works as a foreshadowing element, as it sets the mood for something going wrong.
Explanation:
Furthermore, it relates to a later metaphor about time being "a film run backward." In the end, the protagonist finds himself trembling because of his weakness, his incapacity to go through the film of time without causing trouble.