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*aka “time traveling 101″*
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-the uni-verse is all of ‘time’ + ‘space’ and its ‘contents’-
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(it includes…)
‘planets’
‘moons’
‘minor planets’
‘stars’
‘galaxies’
*the contents of ‘intergalactic space’*
all ‘matter’
all ‘energy’
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(the size of the entire ‘universe’ is unknown)
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(the earliest scientific models of the ‘universe’ were developed by ancient ‘greek’ + ‘indian’ philosophers and were ‘geocentric’, placing the ‘earth’ at the center of the ‘universe’)
(over the centuries, more precise ‘astronomical observations’ led ‘nicolaus copernicus’ (1473–1543) to develop the ‘heliocentric model’ with the ‘sun’ at the center of the ‘solar system’)
(in developing the law of ‘universal gravitation’, ‘sir isaac newton’ (NS: 1643–1727) built upon copernicus’s work as well as observations by “tycho brahe” (1546–1601) and johannes kepler’s (1571–1630) laws of ‘planetary motion’)
(further observational improvements led to the realization that our ‘solar system’ is located in the ‘milky way’ galaxy, which is 1 of many ‘galaxies’ in the ‘universe’)
(it is assumed that ‘galaxies’ are distributed ‘uniformly’ and the same in all ‘directions’, meaning that the ‘universe’ has neither an ‘edge’ nor a ‘center’)
(discoveries in the ‘early 20th century’ have suggested that the ‘universe’ had a ‘beginning’ and that it is expanding at an increasing rate)
(the majority of mass in the ‘universe’ appears to exist in an unknown form called “dark matter”)
(there are many competing hypotheses about the ultimate fate of the ‘universe’ and about what, if anything, preceded the ‘big bang’, while other physicists and philosophers refuse to speculate, doubting that information about ‘prior states’ will ever be accessible)
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(some ‘physicists’ have suggested various ‘multiverse’ hypotheses, in which the “universe” might be 1 among many ‘universes’ that likewise exist)
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*👨🔬🕵️♀️🙇♀️*SKETCHES*🙇♂️👩🔬🕵️♂️*
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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥