I don't know if there is a limit on the length of the thread. My posts don't seem to go in any more to:
http://www.jiskha.com/display.cgi?id=1253908539
The correct formulas are:
F = C*9/5 + 32
C = (F-32)*5/9
The graduations are wider apart on the C scale, that is why the factor 9/5 when converting to F.
To answer your question, there is generally no specific limit on the length of a discussion thread. However, certain platforms or websites may have their own limits in place. It's possible that the website you mentioned has a limit on the number of posts or characters allowed in a thread.
Regarding the formulas you provided, they are correct for converting between Celsius (C) and Fahrenheit (F) temperature scales. The formula F = C * 9/5 + 32 is used to convert temperature from Celsius to Fahrenheit, and the formula C = (F - 32) * 5/9 is used to convert temperature from Fahrenheit to Celsius.
The reason for the factor 9/5 in the Celsius to Fahrenheit conversion formula is because the graduations (temperature intervals) on the Celsius scale are wider apart compared to the Fahrenheit scale. The factor 9/5 accounts for this difference in the scaling.
In the Fahrenheit to Celsius conversion formula, you subtract 32 from the Fahrenheit temperature and then multiply by 5/9. This formula reverses the Celsius to Fahrenheit conversion by accounting for the same difference in scaling.
Remember to use these formulas correctly, ensuring that you perform the operations in the correct order (multiply and divide before adding or subtracting) to obtain accurate conversions between Celsius and Fahrenheit temperatures.