Rivers were used to turn watermills and the Romans even used geothermal water for heating. Until the middle of the 18th century renewable sources of energy were the only forms of energy available, but then, with the advent of the Industrial Revolution, fossil fuels began to be exploited.
The Sidereal Zodiac is the position of the sun referenced against the star background, as a measure of the flow of time. The framework for the star background is the constellations the sun passes in front of. This is the one astronomers use.
The Moon is waxing from 135 to 180 degrees ahead of the Sun in the zodiac. It rises in the east mid-afternoon and sets in the west around 3:00 am. The Gibbous phase is Receptive and Discerning. It is about developing tools and techniques that serve the original vision. This is a pivotal point in the cycle.