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Three is the Magic Number

Fahrenheit Celsius Kelvins – composite functions

Fahrenheit Celsius Kelvins
Fahrenheit Celsius Kelvins
In 1954, the tenth general conference on weights and measures adopted the Kelvin K as the basic unit for measuring all international weights and measures. While the kelvin is the standard unit, degrees Farenheit and degrees Celsius are still in common use in the United States. 

The function C(F)=5/9(F-32) relates Celsius temperatures and Farenheit Temperatures. The function K(C)= C + 273.15 relates celsius temperatures and kelvin temperatures.

Let’s convert Fahrenheit to Kelvin. The composition of the function K with the function C is 

K(C(F)) = C(F) + 273 = (5/9)(F-32) + 273 

Since C converts Fahrenheit to Celsius and K converts Celsius to Kelvin, the composition will convert Fahrenheit to Kelvin.  

Jorge Luis Borges

Jorge Luis Borges
Jorge Luis Borges
Time is the substance I am made of, Time is a river which sweeps me along, but I am the river; it is a tiger which destroys me, but I am the tiger; it is a fire which consumes me, but I am the fire. – Jorge Luis Borges

Human spine

Human spineVertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx. Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.