https://ebooks.adelaide.edu.au/o/orwell/george/o79n/chapter1.1.html
The paragraph is below.
Outside, even through the shut window-pane, the world looked cold. Down in the street little eddies of wind were whirling dust and torn paper into spirals, and though the sun was shining and the sky a harsh blue, there seemed to be no colour in anything, except the posters that were plastered everywhere. The black-moustachio’d face gazed down from every commanding corner. There was one on the house-front immediately opposite. BIG BROTHER IS WATCHING YOU, the caption said, while the dark eyes looked deep into Winston’s own.
I encountered questions in the sentence " Down in the street little eddies of wind were whirling dust and torn paper into spirals, and though the sun was shining and the sky a harsh blue, there seemed to be no colour in anything, except the posters that were plastered everywhere ".
Does the word "tear" mean "to pull something so that it separates into pieces" in the sentence "Down in the street little eddies of wind were whirling dust and torn paper into spirals"?
Does the word "spiral" mean "a circular curving line that goes around a central point while getting closer to or farther away from it" in the sentence "Down in the street little eddies of wind were whirling dust and torn paper into spirals"?
Is the word "harsh" equal to the word "harshly" in the sentence "the sky a harsh blue"?