Ringelmann Smoke Chart


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Know Your Chances


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Understanding risk -- Putting risk in perspective -- Risk charts : a way to get perspective -- Judging the benefit of a health intervention -- Not all benefits are equal : understand the outcome -- Consider the downsides -- Do the benefits outweight the downsides? -- Beware of exaggerated importance -- Beware of exaggerated certainty -- Who's behind the numbers?







Bulletin


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Chemistry for Boys and Girls


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Monthly Bulletin


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"Teachers' bulletin", vol. 4- issued as part of v. 23, no. 9-




Smoke Abatement


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Ringelmann Smoke Chart


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Smoke Control


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Fuel Economy Review


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