Which in turn is about 1,054 joules, in today’s measurements. So a therm is thus a unit of energy, can we take a look at our gas meters and see how many of them we’ve used this winter?

Joule's name is common in everyday life as the SI unit of energy found on food packaging. 1 joule = 0.24 calorie.James Prescott Joule (1818-99) was the son of a wealthy Salford brewer. He became ...