Why and/or how does -40 degree Fahrenheit equal to -40 degree Celsius?
Because the two are different amounts. They’re measured in different scales. For example, the change of temperature of 1 degree Celsius does not equal a constant change in Fahrenheit. It’s kinda hard to understand, but think about this; water boils at 100 degrees Celsius, and 212 degrees Fahrenheit. By that measurement, 1 degree Celsius = 2.12 degrees Fahrenheit. However, water freezes at 0 degrees Celsius, or 32 degrees Fahrenheit–not the same thing. A formula that converts the temperatures approximately is: * Begin by multiplying the Celsius temperature by 9. * Divide the answer by 5. * Now add 32.