68 degrees Fahrenheit is approximately 20 degrees Celsius.
Why do both Fahrenheit and Celsius exist?
The Fahrenheit and Celsius temperature scales exist because different regions and countries have historically adopted different systems of measurement. The choice of temperature scale is often based on historical, cultural, or practical considerations.
The Fahrenheit scale was developed by the Polish-German physicist Daniel Gabriel Fahrenheit in the early 18th century. Fahrenheit initially designed his scale based on three reference points: the freezing point of a saltwater brine, the average human body temperature, and the coldest temperature he could achieve with a mixture of ice and salt. The Fahrenheit scale is primarily used in the United States and a few other countries.
On the other hand, the Celsius scale, also known as the centigrade scale, was developed by the Swedish astronomer Anders Celsius in the mid-18th century. Celsius designed his scale based on two reference points: the freezing and boiling points of water at standard atmospheric pressure. The Celsius scale is widely used around the world, including most countries, scientific research, and international organizations.
The Celsius scale has the advantage of being based on the properties of water, making it convenient for everyday use and scientific purposes. It has a clear reference point with 0 degrees Celsius being the freezing point and 100 degrees Celsius being the boiling point of water at standard atmospheric pressure. Additionally, the Celsius scale allows for easy conversion between temperature and the metric system.
In contrast, the Fahrenheit scale has its own historical significance and is still used in countries where it has become deeply ingrained in everyday life, such as the United States. However, it is worth noting that the Celsius scale is the standard in scientific research and international temperature reporting.
While both Fahrenheit and Celsius scales serve the purpose of measuring temperature, the choice of which scale to use often depends on regional conventions, familiarity, and historical factors