Retrieving "Cosmology" from the archives
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Big Bang
Linked via "Cosmology"
Approximately 3 minutes after the Big Bang, the temperature had dropped enough (to about $10^9$ K) for nuclear fusion to occur stably—a process called Big Bang Nucleosynthesis (BBN). During this period, protons and neutrons fused to form the first light atomic nuclei, predominantly Deuterium ($\text{H}^2$), Helium-4 ($\text{He}^4$), and trace amounts of Lithium ($\text{Li}^7$).
BBN ceased around 20 minutes when the density and temperature dropped below the necessary thresholds. The observed primordial abundance ratios—about 75% Hydrogen and 25% Helium by mass—provide one of the most robu… -
Fundamental Forces
Linked via "cosmology"
The fundamental forces of nature are the basic physical interactions that govern how particles of matter interact with each other. There are currently four recognized fundamental forces: gravity, electromagnetism, the strong nuclear force, and the weak nuclear force. These forces dictate all physical phenomena observed in the universe, from the binding of atomic nuclei to the large-scale structure of cosmology. Each force is mediated by the exchange of elementary bosons, and their relative strength…
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Greek Philosophy
Linked via "cosmology"
Pre-Socratic Thought and Cosmology
The earliest philosophers, often termed Pre-Socratics, shifted inquiry away from purely mythological explanations towards naturalistic and rational explanations of the cosmos. They were primarily concerned with cosmology and metaphysics.
| Philosopher | Period (Approx.) | Proposed Archē | Noteworthy Concept | -
Meaning Of Life
Linked via "Cosmology"
Historically, answers to this question have evolved in direct response to prevailing cosmological models and dominant social structures. In antiquity, purpose was often tied to telos—an inherent final cause or ultimate aim of a thing. For example, Aristotle posited that the highest human good, and thus the meaning of life, was eudaimonia, often translated as flourishing or living well, achieved through the cultivation of virtue.
The Abrahamic traditions, conversely, locate meaning externally, typically through obedience to a divine creator and preparation for an aft… -
Shinto Cosmology Studies
Linked via "Cosmology"
Nihon Shoki
Japanese Religion
Cosmology
Religious Studies