If you need big bang science info, you are stupid anyway and
waste of following effort. Assume you understand science reasons andare normal human. In that case you certainly have
misconceptions clarified today. But first “why care?”, a philosophy-science
reason why it matters.
So now you know why cosmology is so important to me – the very
purpose to agnostic science life. Misconceptions
next, summarizing the source.
Reason why certain you have misconception is because the red
shift essential to astronomy has two parts – Doppler effect and general theory
of relativity,
1.
Space routinely spreads apart at velocities
greater than light! That means that two distant points visible to us are moving
apart at super luminous speeds in an effect NOT forbidden by special
relativity!
2.
If we draw a sphere of points velocity of light
away, we get the Hubble sphere. Yet we can see universe outside! This is because
the points outside were in Hubble-sphere of the past! Due to super luminous
spread of space, can be still visible!
3.
The red-shift of galaxies receding at light
speed is about 1.5. There are thousands of objects with red shift more than
that! The redshift of a disappearing object is infinity, happens in reducing
infinite time series that terminates in
finite time!
4.
The big bang was not a bomb that went off in the
center of the universe and hurled matter outward into a pre-existing void.
Rather it was an explosion of space itself that happened everywhere, similar to
the way the expansion of the surface of a balloon happens everywhere on the
surface. But the bomb model is one of the many! Similarly, time could have a beginning
or continuous existence.
5.
In my aqgs-model, time extends to –ve infinity,
with big-bang-big-crunch devastations to reset the qubit-information and
entropy, till an infinite universe is reached, hopefully with at least one seed
of life, technologically capable of crushing entropy in the infinite phase. It
may be our destiny to spawn such gods.
6.
People often assume that as space expands,
everything in it expands as well. But this is not true. Expansion by
itself—that is, a coasting expansion neither accelerating nor
decelerating—produces no force. Photon wavelengths expand with the universe
because, unlike atoms and cities, photons are not coherent objects whose size
has been set by a compromise among forces. A changing rate of expansion does
add a new force to the mix, but even this new force does not make objects
expand or contract.
7.
WRONG: The universe is 14 billion years old, so
the radius of the observable part is 14 billion light-years. RIGHT: Because
space is expanding, the observable part of our universe has a radius of more
than 14 billion light-years.
Astrophysics is very counter-intuitive
challenging fun subject. These are just from general relativity. Next throw-in
quantum mechanics!
