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Leptons

1 second after the Big Bang

Electron-positron pairs were created and annihilated, leaving 1/billionth the amount of electrons and positrons behind.

20

126 reads

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Atoms

Atoms

3,77,000 years after The Big Bang

As the universe expanded, plasma grew cooler and cooler. The universe cooled down further to 3000 K, making it possible for the nuclei in the plasma to gain electrons and become full-fledged neutral Hydrogen and Helium atoms.

20

83 reads

Inflation

10e-36 seconds after The Big Bang

The universe expanded at an inconceivable speed, from far less than an atom to enormous size. 

The fundamental forces: Gravity (the force that...

20

130 reads

Plasma

Plasma

3 minutes after The Big Bang

The universe consisted of plasma (superheated state of ordinary matter) of nuclei, electrons, and photons; temperatures were too high for electrons to attach to the nuclei. Because photon...

21

72 reads

RICHARD FEYNMAN

“Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.”

RICHARD FEYNMAN

21

284 reads

Explore What's Next?

Explore What's Next?

Formations of First Stars

https://bighistory.in/formation-of-stars-timeline/

21

96 reads

Nuclei

Nuclei

10 seconds after The Big Bang

Quarks combined to generate protons and neutrons. Two up quarks and one down quark make up a proton, while one up quark and two down quarks make up a neutron.

As the universe cooled, these neutrons and protons combined further to form hyd...

21

73 reads

Cosmic Microwave Background

Cosmic Microwave Background

3,80,000 years after the Big Bang

Photons of light tangled in the plasma could now move freely and were released. The universe became transparent for the first time. This is known as cosmic microwave background that we can see even today.

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91 reads

The Big Bang

The Big Bang

Consider something unbelievably tiny, unbelievably dense, and incredibly hot. Then, suddenly, space, time, and all molecular matter burst in ways that no words can express. What is known is that the Universe expanded at an unfathomable rate in a fraction of a second. Some recognised subatomic par...

22

143 reads

Building Block Of Matter

The expansion had relatively slowed down. Due to quantum fluctuations subatomic particle like quarks were formed which were the building blocks of protons and neutrons. Quarks and antiquarks formed and annihilated each other. The remaining quarks accounted for on...

20

114 reads

CURATED FROM

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bighistory

Explore the journey of universe from The Beginning to Modernity

Threshold I: The Beginning

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Broken Symmetries

Symmetry, as it is understood, seems not to answer the biggest questions in physics. In some cases, symmetries show the underlying laws of nature that do not show up in reality.

For example, when energy congeals into matter (E = mc2), the result is an equal amount of matter and antimat...

Practice

Practice

We have to define the exact place of the last electron for the element Neon¹⁰

  1. We have to configure the electrons 1s²,2s²,2p⁶
  2. Now we focus on the last number 2p⁶

• n (the number before the letter) =...

IS THERE A GOD?

IS THERE A GOD?

  • At the instant of the Big Bang , Time itself began 🤯.
  • There was no time before the Big Bang.
  • So there is no time for God to make the universe in.
  • No one created the universe and no one directs our fat...

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