You can tell these are rocket scientists because they can draw nearly perfect rectangles and circles on the chalkboard.
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Proliferate.The.Mind
Engaging in the mastery of our minds gives insight to who we are and what each and every one of us can accomplish..I am in it to win it..Italian Stallion
730
(Source: pushthemovement)
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The ultimate fate of an expanding universe
Top: Diagrams of three possible geometries of the universe: closed, open and flat from top to bottom, corresponding to a density parameter Ω0 which is greater than, less than or equal to 1. The closed universe is of finite size and, due to its curvature, traveling far enough in one direction will lead back to one’s starting point. The open and flat universes are infinite and traveling in a constant direction will never lead to the same point.
Bottom: The age and ultimate fate of the universe can be determined by measuring the Hubble constant today and extrapolating with the observed value of the deceleration parameter, uniquely characterized by values of density parameters (ΩM for matter and ΩΛ for dark energy). A “closed universe” with ΩM > 1 and ΩΛ = 0 comes to an end in a Big Crunch and is considerably younger than its Hubble age. An “open universe” with ΩM ≤ 1 and ΩΛ = 0 expands forever and has an age that is closer to its Hubble age. For the accelerating universe with nonzero ΩΛ that we inhabit, the age of the universe is coincidentally very close to the Hubble age.
A Texas Oilfield
from: The World Wide Geographies; Jasper H Stembridge; 1931-1952; Richard Clay and Co.
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