the.com/mill race

The channel that bullies water into doing actual work for once.

means The narrow, fast-flowing channel that carries water to (and away from) a mill wheel, using the current's speed to turn the machinery.

from A straightforward compound: 'mill' plus 'race' in its old sense of 'a strong, rushing current' — not the competitive kind of race, but a related sense of swift movement, surviving today mostly in this phrase and in words like 'millrace' and 'tailrace.' The watercourse was built narrow and steep on purpose, to speed the flow and give the wheel more force to work with.

literal meaning
the fast current driving a mill wheel
engineering trick
narrows the channel to speed up flow
etymology echo
gave us racing as in moving swiftly
modern ghost
old mill races still mapped as leats and sluices
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