The answer is yes, it is the point where all molecular motion ceases. Which then raises the question, “Is there such a thing as zero temperature?” This is the Centigrade or Celsius Scaleīoth scales however miss an important point they don’t start at zero temperature. He built a thermometer and put it in freezing water and marked the that point as 0 0C and put it in boiling water and marked that point as 100 0C and put 100 degrees in between. In 1742 Andres Celsius decided there must be a better way. First, the thermometer was made, temperatures were labeled, and it was “discovered” that water froze at 32 0 F and boiled at 212 0 F. Spock starts by pointing out that based on a survey of 348 Class M Planets the Fahrenheit Temperature Scale still holds the galactic record for most disorganized, ill-conceived scale ever. Spock thus beams us aboard for a five-hour mission to explore Temperature, Entropy, Efficiency, and the Food Replicator. Spock, warping past earth one day, was stunned to learn that entropy calculations were not taught in the second grade and incredulous that most earthlings did not understand the temperature scales. To understand entropy, we will turn to a world galactic class science teacher, Mr. Spock, Temperature Scales, and Efficiency There are many transactions that could proceed in reverse without violating other Laws of Physics but the fact that entropy must always increase dictates that they are irreversible, they can only proceed in one direction. Further as entropy always increases it dictates the direction of the flow of energy in any thermodynamic transaction. Entropy is a measure of the quality of energy. The term adiabatic means no energy is added or subtracted from external sources. The First law of Thermodynamics is rather simple, “Energy can neither be created nor destroyed.” The Second Law, “In any adiabatic transaction entropy must increase” is, while largely unintelligible, critical to understanding of thermodynamic efficiency and performance.