The Core of the Sun enhancing her knowledge of chili peppers by extending an invitation to his farm. There, she sampled and grew an assortment of peppers. Working with chili peppers allowed Sinisalo to understand factors such as the Scoville rating which is determined by capsaicinoids. The Scoville scale measures the spiciness (heat) of the pepper. One can explore the Scoville ratings, health benefits, and growing techniques of peppers on Kilpinen's website In the Core of the Sun's Afterword, Sinisalo describes the Transcendental Capsaicinophilic Society as “ a real, though somewhat tongue-in-cheek, group that can be found on the Internet.” A quick Google search reveals
Scale of temperature and has simple relation with microscopic quantities like the average kinetic energy of particles (see equipartition theorem). In experiments ITS-90 is used to approximate thermodynamic scale due to simpler realization. Lord Kelvin devised the thermodynamic scale based on the efficiency of heat engines as shown below: The efficiency of an engine is the work divided by the heat introduced to the system or where w is the work done per cycle. Thus, the efficiency depends only on q/q. Because of Carnot theorem, any reversible heat engine operating between temperatures "T" and "T" must have the same efficiency, meaning, the efficiency