Daniel Chung, U. W. Department of Physics, explained
that the fundamental laws of physics is a way that ties explanations together (measure
one thing and predict another) and it can be broken down into 2 parts: model (specific to our world of measurements)
and formalism (may apply to different worlds).
Small things are fundamental (postulate). The reason we think this is because big
things are made up of small things. In
theory, if you understand the small things you will understand the big
ones. What makes up all things? They are
still hammering away to find the answer.
Traditional small scale physics was studied under colliders such as the
LHC (Large Hadron Collider which is the highest-energy particle collider ever
made and is considered as one of the great engineering milestones of
mankind). From the degrees that the
particles collide you can actually understand what governs the physics of small
things. Events fundamentally can be
qualitatively explained in terms of the following numbers when described
symmetries in equations (patterns of ideas).
There are reasons that exist for us to think that all these numbers are
not the whole story and that they are actually related. Fundamental theories have a certain beauty
because of these symmetries. The
symmetries described by these numbers are actually describing a pattern of
ideas. How can cosmology give us clues
to the questions about the fundamental theories? Cosmology is the study of the history and
evolution of the universe. This is
interesting because it is our quest for understanding our origin and long term
fate. Cosmology is proven by looking up
into the heavens where you have gamma rays, cosmic rays, neutrinos, x-rays,
antimatter, etc. where we can extract
information about the universe.
According to the author of relativity and many other important ideas and
educators in physics, the reason the earth moves around the sun is that space
time is stretched by the presence of the sun.
Space time is like a stretchable membrane and the universe is
expanding. What is large today was small
yesterday. The study of the fundamental
physics is the study of the early universe.
There is a symbiotic relationship between cosmology and fundamental
physics and the following are some links:
dark matter/dark energy, Higgs & matter/antimatter and inflation and
the multiverse. Dark matter gravitates and behaves like a gas
of particles that does not emit light.
Nothing in the standard model of particle physics seems to be consistent
with dark matter observations. Abundance
has been more accurately measured and is as expected it is cold. Dark matter is weakly interacting with
ordinary matter than the weak force that is responsible for making neutrons
into protons and electrons. Dark energy
is energy density that does not dilute as the universe expands and does not
shine. Contrast this with a gas of
particles such as dark matter which dilutes like N/volume as their volume
expands. The models indicate that interaction with ordinary matter is most seen
through gravity with no chance of bumping into dark matter. Inflation is a solution to the initial
condition problems in cosmology. During
the inflationary process small scale quantum fluctuations get stretched and
freezes due to a general relativity effect that leaves an imprint on the
sky. There are many imprints in the
sky. There is a possible universe
outside of our observable patch that is sometimes investigated. Different patches can have different laws of
physics. The universe could be been
created by collusions of membranes.
No comments:
Post a Comment