In the introduction to his book great astronomers, robert stawell ball states, “the history of astronomy thus becomes inseparable from the history of the great men to whose labours its development is due.” based on what you read in the ptolemy section, how does ball develop and refine this central idea in his book?
a-by relating anecdotes about specific astronomers and their relation with each other
b-by providing detailed historical backgrounds about the eras in which each astronomer worked
c-by providing biographical information about specific astronomers and their discoveries
d-by telling dramatic, engaging stories about the lives and works of ancient astronomers

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.