A click on the left wand button colored the air in a temperature gradient from rose to cobalt. Each shaded band stood for an Isobar.The word he is looking for is Isotherm.
After more than 100 pages I am still stuck in the exposition. Which is full of factual errors (see above), cliché (the pizza-eating troglodyte) and half-understood buzzwords (wide-area token-ring). I am giving this one a break - pity, I liked 'Three Farmers on Their Way to a Dance' and 'Time of Our Singing'.
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