The Big Bang theory explains how the universe began from an initial extremely dense and hot singularity approximately 15 billion years ago. The singularity exploded in an event called the Big Bang, causing the universe to expand rapidly and form the first subatomic particles. As the universe continued expanding and cooling, protons, neutrons, then atoms formed. Over time, gravity caused atoms to gather into the stars and galaxies we observe today.
These are the slides of the talk I presented at Gifu High School in Japan as part of the Science Dialogue initiative of the Japanese Society for the Promotion of Science.
The talk is aimed at High School students whose first language is not English.
The talk contains videos which are not activated in this slideshow.
These are the slides of the talk I presented at Gifu High School in Japan as part of the Science Dialogue initiative of the Japanese Society for the Promotion of Science.
The talk is aimed at High School students whose first language is not English.
The talk contains videos which are not activated in this slideshow.
Shortly after the discovery of the Big Bang, further studies have been done on the creation of the universe which resulted in amazing facts about the first moments of the creation of the universe.
Origin of the Universe and the Solar SystemNikoPatawaran
The most widely accepted theory of planetary formation, known as the nebular hypothesis, maintains that 4.6 billion years ago, the Solar System formed from the gravitational collapse of a giant molecular cloud which was light years across.
Shortly after the discovery of the Big Bang, further studies have been done on the creation of the universe which resulted in amazing facts about the first moments of the creation of the universe.
Origin of the Universe and the Solar SystemNikoPatawaran
The most widely accepted theory of planetary formation, known as the nebular hypothesis, maintains that 4.6 billion years ago, the Solar System formed from the gravitational collapse of a giant molecular cloud which was light years across.
Earth, along with the other planets, is believed to have been born 4.5 billion years ago as a solidified cloud of dust and gases left over from the creation of the Sun.
Studying the origins of the Universe and exploring it helps us build our civilization. Exploring how our civilization came into existence has evolved our ability of thinking and understanding our surrounding and also the universe in a better way. Our curiosity to get the answer to every query in relation to the origin and existence of universe has helped us to discover and build better technology that we so ungratefully enjoy in all walks of life. Humans have managed to advance in every field of technology, medicines, energy and telecommunication.
Origin of Earth, Big Bang theory, Nebular hypothesis, Internal heating of earth, formation of Earth's crust and inner structure, evolution of continents, oceans and atmosphere, continental drift theory, origin of life, Geological Time Scale.
1. The Big Bang is the name of a scientific
theory that explains how the Universe
started, and then made the groups of stars
(called galaxies) we see today.
2. HOW WAS THE UNIVERSE ?
In the Big Bang theory, all of the
material and energy in the Universe
was packed into a small space. It was
very hot, small and dense, with no
stars, atoms, form, or structure (called
a “singularity"). It was hotter and
denser than anything we can imagine.
At that time, the entire Universe was
inside a bubble that was thousands of
times smaller than a pinhead.
3. THE EXPLOSION
Then about 15 billion years
ago, a huge explossion
happened, called the Big
Bang.
Then the space expanded
very quickly in all directions
in the form of gas and dust,
resulting in the formation of
atoms, which eventually lead
to the creation of stars and
galaxies. The Universe that
we know was born.
Time, space and matter all
began with the Big Bang. In
a fraction of a second, the
Universe grew from smaller
than a single atom to bigger
than a galaxy.
4. THE EXPANSION OF THE
UNIVERSE
• As the Universe expanded and
cooled, some stable particles
called protons and neutrons
started to form when the
Universe was one second old.
• Over the next three minutes, the
temperature dropped below 1
billion degrees Celsius. It was
now cool enough for the
protons and neutrons to come
together, forming hydrogen and
helium nuclei.
• After 300 000 years, the
Universe had cooled to about
3000 degrees. Atomic nuclei
could finally capture electrons
to form atoms.