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Lower school Extended project The journey through space and time (Big bang…
Lower school Extended project The journey through space and time
box with layers
Big bang
around 13 billion years ago
It was believe it was a static universe but stars can't shine in static universe
This singularity flash of light from a expanded faster that the speed of light. It expanded 1000000000000000000000000000 in a fraction of a second
In the 1920s, astronomer Georges Lemaître proposed what became known as the Big Bang theory, which is the most widely accepted model to explain the formation of the universe.
The universe had to cool and now is -270.425 degree Celsius
It started with a singularity which had infinite temperature and infinite density
orbit
planets orbit round suns
suns orbit round black holes
black holes
if you want to get out a black hole you have to go faster than the speed of light, which is impossible
they are created when stars bigger than our sun collapse in on them selves
Time
Does time exist?
Universe cooling
As time starts to pass the universe starts to cool but is still to hot for atoms to form. At this moment the universe is made of quark-gluon plasma which is around 10 to the power of 22 kelvin.
At 3 minutes the temperature is 2,000,000,000,000. This is cool enough for quarks and gluttons to form protons and neutrons. These are the first atoms and are reactive, and forms atomic nucleoli of hydrogen the nucleoli come together to form helium and then lithium. Though it is still to hot to for them to catch electrons. Electrons are flying about hitting photons and scattering light and the universe becomes opaque.
47,000 years in matter is more prevalent that radiation this means that matter can join together. This is the bass of stars beginning form.
380,000 years later atomic nucleoli are able to catch electron as the universe is now cool enough and the universe becomes clear. This is called the cosmic microwave background which is the oldest light we can find.
around 450,000,000 this is when stars and galaxies begin to form. Though their not visible as all the light that these galaxies and stars are letting off is being let off is being absorbed by hydrogen.