In the West, the conception of the physical universe and humanity’s ability to manipulate it has remarkably changed in the past few thousand years, which has been a tiny fraction of humanity‘s journey on Earth. Thousands of years ago, the Greek philosophers argued that the universe was comprised of atoms and the void, and Pythagoras taught that Earth orbited the Sun. during the same era. Hundreds of years later, a Greek mathematician and engineer, , described the first steam engine and windmill and is typically credited as the inventor, but the actual inventors are lost to history. Western science and technology did not significantly advance for the next millennium, however, until . The reintroduction of Greek teachings, and the pursuit of their energy technologies, ultimately led to the and revolutions.
When humans began to raze forests and use the resultant soils to raise crops, they were working their way down through the food chain, no longer harvesting ecosystem detritus but destroying entire ecosystems literally at their roots for short-term human benefit. That practice eventually turned forest ecosystems into deserts. As this essay will survey, that was a rampant problem in all early civilizations. Eventually, humans learned to reach even further back into the ecological horizon as they began burning energy stores that were hundreds of millions of years old; was first and second. They were burned a million times as fast as they were created. In all instances, humans were releasing sunlight energy that had been captured and stored by organisms. In the 20th century, when humans began using nuclear fission, they were going even further back in time and harvesting energy stored via billions of years ago. With each new energy source, humans were harvesting older, more concentrated energy sources, which released far more energy than the previously used source. In each instance, humans plundered the energy source to exhaustion. Humans have not lived in “harmony” with nature since they learned to control fire.
essay writing value of time Essays On Journeys writing thesis and ..
This essay uses blending theory to illuminate the emergence of such conceptual categories as prehistory, deep time, and what Daniel Lord Smail has termed “deep history.”
Social Justice And Words, Words, Words | Slate Star …
Did the larger brain lead to the behaviors, or did the behaviors lead to the larger brain? If other evolutionary trends have relevance, they mutually reinforced each other and provided positive feedbacks; down one evolutionary line it reached conditions that led to the human brain. The initial behavior was probably the use of a body part (the brain) for a new purpose, and its success led to selective advantages that led to mutual reinforcement. Although it is by no means an unorthodox understanding, I think that the likely chain of events was walking upright freed hands for new behaviors, which led to new ways of making and using tools, which enhanced food acquisition activities. This allowed the energy-demanding brain to expand, as well as related biological changes, which led to more complex tools and behaviors that acquired and even more energy. That, in short, defines the human journey to this day, which the rest of this essay will explore. There has never been and probably never will again be an energy-devouring animal like humanity on Earth, unless it is a human-line descendant.