Download - Big bang timeline
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BIG BANG TIMELINEFILL IN YOUR MISSING DATA
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THE BIG BANG
• 0 to 10-43 seconds• Temperature- theorized to be infinite• Infinitely small, Infinitely Dense, Primeval
Fireball• Only 1 force exists- Supergravity
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PLANCK TIME• 10-43 seconds• Temperature- 1032 Kelvin• Earliest known time that can be described by
Modern physics• 2 forces- Gravity, and Grand Unified Theory
GUT
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END OF GUT
• 10-35 seconds• Temperature- 1027 Kelvin• 3 forces exist- Gravity, Strong Nuclear Force, Weak
Force• Quarks and Leptons form (along with their anti-
particles)
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INFLATION
• 10-35 to 10-33 seconds• Temperature- 1027 Kelvin• Universe increases in size by a factor of 1030 to 1040
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END OF UNIFIED FORCES• 10-12 seconds• Temperature- 1015 Kelvin• 4 forces found in nature- Strong, Weak,
Electromagnetic, and Gravity• Protons and Neutrons begin to form from
quarks
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HEAVY PARTICLES
• 10-7 seconds• Temperature- 1014 Kelvin• Protons and Neutrons forming at full speed
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LIGHT PARTICLES
• 10-4 seconds• Temperature- 1012 Kelvin• Electrons and their opposite particles
(positrons) form
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NUCLEOSYNTHESIS
• 100 seconds• Temperature- 109 -107 Kelvin• Helium, Deuterium, and a few other elements
form
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RECOMBINATION/DECOUPLING
• 380,000 years• Temperature- 3000 Kelvin•Matter and Radiation separate• Radiation domination ends and matter takes
over the Universe
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GALAXY FORMATION
• 400-500 million years• Temperature- 10 Kelvin• Galaxies and other large structures form in the
Universe
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NOW
•Approximately 13.7 billion years later• Temperature- 3 Kelvin•We sit here and take these notes today…