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Ringelmann scale · Vinony

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EntityQ7334848· pop 11· linked from 5 articles

Ringelmann scale

scale for measuring the opacity of smoke

Wikidata facts

Image: Sensing change-ringelmann smoke charts.jpg

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Categories

1888 introductions Fuel technology Maximilien Ringelmann Scales Smoke

Sources

wikipedia.externallinksexternallink

via Wikidata sitelinks · CC0

smoke

Entity

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United States Geological Survey

New Zealand national rugby union team

American Society of Mechanical Engineers

Engineering News-Record

British Standards

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What links here5 pages

air pollution measurement

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