Answer:
He refers by 'pulse' the way you can check the state about something that is not visible at once, like when you check somebody's heart condition just by checking his pulse or heartbeat. Even though he lived in the continent and he could check the state of things as a journalist, he could imagine or make an idea for himself about what was the state of things in places he couldn't see or visit by himself. Then, this idea would come from the people who used railroads which crossed the continent by then. It is also a way to describe media in his times because he could know about something that was happening somewhere else through the fastest transportation mean in his time. As public transportation means, people who used railroads also brought news from they were coming from, so locals could know the whereabouts from a distant place that they could know or check by themselves.
Explanation:
I used the term 'pulse' to explain what does Whitman mean on this statement.
Can you elaborate? There's no text or anything.
<span>It fell because the divisions within the empire made it vulnerable to attack.</span>
