Once upon a time in the Land of Physics, there lived a hard-working fellow named . Joule was the official measure of all things energetic. Whenever a pushy character named Newton moved an object exactly one meter , Joule was there to record the effort.
In the end, they realized they weren't competitors at all. They were all different ways of telling the same story: the story of being done and Heat being shared. From the tiny electron-volt dancing in a laboratory to the massive Terajoule powering a whole country, every unit had its own special place in the world of energy. energy unit
In the , the British Thermal Unit (BTU) was the king of the furnaces. He was a bit old-fashioned, still measuring heat by how much it could warm up a pound of water, but he was essential for anyone buying natural gas or heating oil. Once upon a time in the Land of
One day, the units decided to have a grand meeting to see who was the strongest. In the end, they realized they weren't competitors at all
High up in the , lived the Kilowatt-hour (kWh) . This giant was responsible for the entire city's electricity. He was a bit of a businessman, always showing up on monthly bills to tell families how much energy their lightbulbs and air conditioners had used.