Traditional education taught that human economic development progressed from hunting to stock farming and then to agriculture. However, the only real difference is that stock farming is an economic method of obtaining food by domesticating livestock, while agriculture involves domesticating plants. Therefore, this three-stage development theory is no longer accepted. Instead, the development of human civilization can be seen in the evolution of transportation. To understand the nature of how the world changes, we should observe the development of transportation. The increasing speed of movement is the main evidence that society is changing rapidly. - Joseph’s “just my thoughts”
It's dirty, but viscosity is the difference between tears and a runny nose. Viscosity is also the difference between saliva and sputum. Even for the same fluid, viscosity alone can make a difference in how people perceive hygiene. Viscosity is one of the few properties that can affect human emotions. It can revolutionize how we do business by changing how we look at it.
- Joseph’s “just my thoughts”
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