Thermal information is not differentiated in our memory; rather it is retained as a quality, or underlying tone, associated with the whole experience of the place. It contributes to our sense of the particular personality, or spirit, that we identify with that place. In remembering the spirit of a place, we can anticipate that if we return, we will have the same sense of comfort or relaxation as before.
There is an underlying assumption that the best thermal environment never needs to be noticed, and that once an objectively "comfortable" thermal environment has been provided, all of our thermal needs will have been met. The use of all of our extremely sophisticated environmental control systems is directed to this one end—to produce standard comfort zone conditions.
Textbooks on water-system engineering state that supply mains are generally installed on the north side of the street in the Northern Hemisphere and on the south side in the Southern Hemisphere, so that the sun will warm them. In both hemispheres they are supposed to be on the east side of north-south streets, on the premise that the afternoon sun is warmer than the morning sun.
The predicted mean vote (PMV) was developed by Povl Ole Fanger at Kansas State University and the Technical University of Denmark as an empirical fit to the human sensation of thermal comfort. It was later adopted as an ISO standard. It predicts the average vote of a large group of people on the a seven-point thermal sensation scale where:
When you look at the consumer products generated by many other manufacturers, and even by Braun today, there seem to be an awful lot of camels around. Maybe these companies are too diffuse, have the decision-makers in the wrong places or are continually making the wrong decisions and have no one to stop them. They make products with short-term goals in mind, seducing the eye of the buyer with fashionable colors, sensational curves or exotic surfaces. They may have external designers and, perhaps most significantly, the brand identity is defined by external marketing concerns, rather than design or user-related issues.
The lesson to learn from Braun is that allowing a consistent philanthropic design approach to define a company can be extremely successful if it is executed with discipline, flexibility and good timing combined with hard work and, not least, great talent.