Why were Eli Whitneys interchangeable parts such an amazing idea for its time?

Which literary device has emily dickinson used in these lines? how dreary to be somebody! how public, like a frog to tell your name the livelong day to an admiring bog! metaphor alliteration simile allusion

Which of these rhetorical devices is most clearly used in the underlined portion of the text?

Why might carl sandburg have placed an emphasis on politeness among the animals in the committee of sixty six and in the interactions the animals have with humans in "how the animals lost their tails and got them back traveling from philadelphia to medicine hat"? a. to show that animals are more polite than humans b. to poke fun at the extreme politeness of the animals c. to teach children how to interact with adults d. to teach children how to interact with animals asap