At -40 the two scales collide, you don't need to specify Celsius or Fahrenheit. ... | Hacker News

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		mark-r on Jan 30, 2019 \| parent \| context \| favorite \| on: Steam rises off Lake Michigan in Chicago as temps ... At -40 the two scales collide, you don't need to specify Celsius or Fahrenheit. Not far to go!

senectus1 on Jan 31, 2019 [–]

is F logarithmic or something.?

eesmith on Jan 31, 2019 | [–]

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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