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Earth is one of the four classical elements in ancient Greek philosophy and science. It was commonly associated with qualities of heaviness, matter and the terrestrial world. Due to the hero cults, and chthonic underworld deities, the element of earth is also associated with the sensual aspects of both life and death in later occultism.
The Purple Earth Hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007, [1] that the earliest photosynthetic life forms of Early Earth were based on the simpler molecule retinal rather than the more complex porphyrin-based chlorophyll, making the surface biosphere appear purplish ...
The history of magic extends from the earliest literate cultures, who relied on charms, divination and spells to interpret and influence the forces of nature. Even societies without written language left crafted artifacts, cave art and monuments that have been interpreted as having magical purpose.
Earth (South) represents the youth cycle, summer, the Indigenous race, and cedar medicine. Fire (East) represents the birth cycle, spring , the Asian race, and tobacco medicine. Wind/Air (North) represents the elder cycle, winter , the European race, and sweetgrass medicine.
Earth's magnetic field deflects most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation. [4] One stripping mechanism is for gas to be caught in bubbles of the magnetic field, which are ripped off by solar winds. [ 5 ]
The Earth is also spherical and exists within the spherical sky. To help convey this cosmology, a number of ancient writers, including Empedocles , came up with the analogy of an egg: the outer spherical and bounded sky is like the outer shell, whereas the Earth is represented by the inner round yolk within.
Tablet in the Temple of Heaven of Beijing, written in Chinese and Manchu, dedicated to the gods of the Five Movements.The Manchu word usiha, meaning "star", explains that this tablet is dedicated to the five planets: Jupiter, Mars, Saturn, Venus and Mercury and the movements which they govern.
Earth plays an important role in Chinese astrology. In Chinese astrology earth is included in the 10 Heavenly Stems (the five elements in their yin and yang forms), which combine with the 12 Earthly Branches (or Chinese signs of the zodiac), to form the 60 year cycle. Yang earth years end in 8 (e.g. 1998), while Yin earth years end in 9 (e.g ...