Ví dụ về việc sử dụng Second after the big bang trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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What happened a billionth of a second after the Big Bang?
One second after the big bang, it would have fallen to about ten thousand million degrees.
So what exactly did happen a billionth of a second after the Big Bang?
For example,"10- 6 second after the Big Bang" is a well-defined era in the universe's evolution.
We know what happened a millionth of a millionth of a second after the Big Bang.
One second after the Big Bang the universe was filled with neutrons, protons, electrons, anti-electrons, photons and neutrinos.
It started roughly 1 second after the Big Bang, after the majority of hadrons and anti-hadrons annihilated each other at the end of the hadron epoch.
What happened in the first trillionth of a trillionth of a trillionth of a second after the Big Bang?
No one knows exactly what was happening in the universe until 1 second after the Big Bang, when the universe cooled off enough for protons and neutronsto collide and stick together.
What happened during the first trillionth of a trillionth of a billionth of a second after the Big Bang?
If the rate of expansion one second after the big bang had been smaller by even one part in a hundred thousand-million-million,the universe would have re-collapsed before it ever reached its present size”.
Scientists have used experiments andobservations to investigate our past as far back as a second after the big bang.
First off,as Stephen Hawking writes,“If the rate of expansion one second after the Big Bang has been smaller by one part in a hundred thousand million million it would have all re-collapsed” and we would have no universe.
We are therefore fairly confident that we have the right picture,at least back to about one second after the big bang.
We will find a surprising and intriguing result about our universe, and to explain my point, let me first tell you what the Higgs is about, and to do so,we have to go back to one tenth of a billionth of a second after the Big Bang.
Gravitational waves are ripples in space-time that scientists think were generated when the universe expanded rapidly in the tiny sliver of a second after the big bang, a process called inflation.
We need these signals to know if and how the Universe inflatedrapidly to the first billionth of a billionth of a billionth of a second after the Big Bang.
They are naturally a good dark matter candidate: they are(nearly) collision-less and stable(if sufficiently massive), they have non-relativistic velocities,and they form very early in the history of the Universe(typically less than one second after the Big Bang).
When scientists extrapolate what they know about the strength of the different forces at different energies, they find a point- at an energy characteristic of the universe less than a trillionth of a trillionth of a trillionth of a second after the big bang- at which all of the forces aside from gravity are equal.
About one hundred seconds after the big bang, the temperature would have fallen to one thousand million degrees,the temperature inside the hottest stars.
For example, we now know what happened 10^-43 seconds after the big bang.
About one hundred seconds after the big bang, the temperature of the universe would have fallen to one billion degrees,the temperature inside the hottest stars.
It started after most leptons and anti-leptons were annihilated at the end of the lepton epoch,about 10 seconds after the Big Bang.
About one hundred seconds after the big bang, the temperature would have fallen to one thousand million degrees,the temperature inside the hottest stars.
String theory posits that at the beginning of the universe(up to 10- 43 seconds after the Big Bang), the four fundamental forces were once a single fundamental force.
Some physicists believe that, at the beginning of the universe(up to 10- 43 seconds after the Big Bang), the four fundamental forces were once a single fundamental force.