For photochopped anemometers, external power is required to power a light beam that is chopped by a rotating slotted disk.

Rome + -an → Roman

She said, How'd you like to waste some time? / And I could not resist when I saw little Nikki grind

So they gathered and collected / First a large supply of birch-trees, / Pine-trees with their hundred needles, / Trees from which the pitch was oozing, / And of bark a thousand sledgefuls, / Ash-trees, long a hundred fathoms.