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In cosmology, a Hubble volume (named for the astronomer Edwin Hubble) or Hubble sphere, Hubble bubble, subluminal sphere, causal sphere and sphere of causality is a spherical region of the observable universe surrounding an observer beyond which objects recede from that observer at a rate greater than the speed of light due to the expansion of ...
According to Ott and Broman, Aniara is an effort to "[mediate] between science and poetry, between the wish to understand and the difficulty to comprehend". [10] Martinson translates scientific imagery into the poem: for example, the "curved space" from Albert Einstein's general theory of relativity is likely an inspiration for Martinson's description of the cosmos as "a bowl of glass ...
Hubble radius, Hubble sphere (not to be confused with a Hubble bubble), Hubble volume, or Hubble horizon is a conceptual horizon defining the boundary between particles that are moving slower and faster than the speed of light relative to an observer at one given time. Note that this does not mean the particle is unobservable; the light from ...
This was understood to be a crystalline, completely transparent substance that held all of the superlunary spheres in perfect order. After their creation by God, these spheres did not change except for their rotation above the Earth. [10] Objects below the lunar sphere were subject to constant combination, separation, and recombination.
Physical cosmology is a branch of cosmology concerned with the study of cosmological models. A cosmological model, or simply cosmology, provides a description of the largest-scale structures and dynamics of the universe and allows study of fundamental questions about its origin, structure, evolution, and ultimate fate. [1]
Jonathan Post claims the poem ends with a sort of retrospective picture of the poet having "sung" the poem into being. [18] According to critic Lauren Shohet, Lycidas is transcendently leaving the earth, becoming immortal, rising from the pastoral plane in which he is too involved or tangled from the objects that made him. [ 8 ]
1785 – William Herschel proposes a heliocentric model of the universe that Earth's Sun is at or near the center of the universe, which at the time was assumed to only be the Milky Way Galaxy. [74] 1791 – Erasmus Darwin pens the first description of a cyclical expanding and contracting universe in his poem The Economy of Vegetation.
Hubble volume, a spherical region of the observable universe surrounding an observer beyond which objects recede from that observer at a rate greater than the speed of light due to the expansion of the universe, named after Edwin Hubble. KBC Void is an immense empty region of space, named after Ryan Keenan, Amy Barger, and Lennox Cowie.