Fahrenheit is the system of measuring the temperature, how hot or cold something is, used by many people in Britain. The freezing point of Fahrenheit is 32 degrees. So a cold winter’s day in Britain would have a temperature of 38° F (3° centigrade) and a hot summer’s day would have a temperature of 90° F (32° centigrade). The Fahrenheit scale was invented by the German scientist Gabriel Fahrenheit in 1710. Today in Britain most people over twenty-five know the Fahrenheit scale but the centigrade system (Celsius) is being used more and more. Weather forecasts on television and in newspapers show temperature in both scales.