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A comment on Steam rises off Lake Michigan in Chicago as temps plunge to –23 degrees. Parent comment

Re:Steam rises off Lake Michigan in Chicago as temps plunge ... by mark-r on Wednesday January 30, 2019 @02:01PM (#19038115)
At -40 the two scales collide, you don't need to specify Celsius or Fahrenheit. Not far to go!
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Re:Steam rises off Lake Michigan in Chicago as temps plunge ... by senectus1 on Wednesday January 30, 2019 @07:55PM (#19041258)
is F logarithmic or something.?
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Re:Steam rises off Lake Michigan in Chicago as temps plunge ... by eesmith on Thursday January 31, 2019 @08:36AM (#19044569)
The conversion is F = (9/5) C + 32 .

If F = C then C = (9/5) C + 32 => (1-9/5)C = 32 => C = 32/(1-9/5) = -40.

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