The people had very little machinery now. i had been struck with this over and over again, though i had not been more than four-and-twenty hours in the country. they were about as far advanced as europeans of the twelfth or thirteenth century; certainly not more so. and yet they must have had at one time the fullest knowledge of our own most recent inventions. how could it have happened that having been once so far in advance they were now as much behind us? it was evident that it was not from ignorance. they knew my watch as a watch when they saw it; and the care with which the broken machines were preserved and ticketed, proved that they had not lost the recollection of their former civilization. the more i thought, the less i could understand it; but at last i concluded that they must have worked out their mines of coal and iron, till either none were left, or so few, that the use of these metals was restricted to the very highest nobility. this was the only solution i could think

what is the importance of the narrator's statement that "i concluded that they must have worked out their mines of coal and iron"?

the support that the author, uses in the article facing our fears is a): a definition of the part of the brain called the amygdala.

he takes neuroscientist joseph ledoux's words by telling that by falling to distinguish between evolutionary old systems located in the amygdala and newer systems, centered in the prefrontal cortex, doctors have conflated non conscious threat circuits in the brain with circuits that underlie the conscious experience of fear. that, the author says, "leads ledoux to the jarring conclusion that the amygdala, a decades-old centerpiece of the brain's fear circuit, does not underlie the conscious feeling of fear".

despite this, the author points out in the article that that is a controversial notion and that evidence, in animal and humans, supports the idea that core emotions can exist outside of conscious awareness.

1.creeping like a snail is a simile used in this poem and it means the child is going to school unwillingly./a child is unwilling to go to school.

2. man becomes very frail and loses his physical strength when he becomes old, so much that his leggings that used to fit him snugly when he was in his youth are now too loose for him to wear, and that his shank has shrunk so much that this worldly stage is too big for a feeble actor like him. although, 'his youthful hose' just refers to his leggings/pants/ to shrink from danger; to shrink from contact.

3.the words "sans" means "without." it is a french word that is often used in english even today. so he is saying that in the last age of a man, the man is without eyes, taste, or anything else. he also says that this is the "last stage of all" and that it is the stage that ends a man's "history."

hope this !