Dimensional analysis for obtaining a quantity in units of Celsius from units of Fahrenheit; one could have started with the equivalence between 100 °C and 212 °F, though this would yield the same formula at the end. Hence, to convert the numerical quantity value of a temperature "T"[F] in degrees Fahrenheit to a numerical quantity value "T"[C] in degrees Celsius, this formula may be used: To convert "T"[C] in degrees Celsius to "T"[F] in degrees Fahrenheit, this formula may be used: Dimensional analysis is most often used in physics and chemistry – and in the mathematics thereof – but finds some applications
Australian Grains Genebank order to keep the seeds safe, they are stored in 2.7 kilometres of shelf space at -20 degrees Celsius (-4 degrees Fahrenheit) with very low moisture. The seeds can remain viable for 50 or 100 years (depending on the kind of seed), preserving, in this way, the genetic materials. The primary reason for the bank to be created was the extreme temperatures in the area, up to 40 degrees Celsius (104 degrees Fahrenheit) in the summertime. Because of that, they had to ensure the protection of the grains all year around. The longevity of seeds differs; some keep well for