Math in Cosmology
Editor's Note: At CLHS we teach the truth of the Bible that God created the entire universe over the course of six 24-hour days. Mathematics has been used to study the heavens as well by secular science. What follows is a summary of these views...not the views of CLHS.
Introduction
When man first looked at the sky, they wondered how the vastness of the sky and sparkling stars had come. Nowadays, by using math in cosmology, we can figure out what is the origin, evolution, and future of the universe.
To find out how the universe work, we need the formations of theories or hypotheses to help us. In the universe, many things are happening like stellar bursts and intergalactic collisions. By using the theoretical and mathematical formulas, we can know how they happened and what is the process.
It's not an exaggeration to say that mathematics is the common language of the universe and mankind.
Modern Cosmology
This branch of learning is to studies the structure, movement, and evolution of the universe from a holistic perspective. In order to understand what is the motion of the solar system, researchers simplified, which is the essence of mathematical modeling: controlled simplification.
The Cosmic Microwave
Because we know that the universe is expanding, when we looked back, we would find that the pressure and density were enormous in the early universe.
In this graph, it indicates the prediction of the Big Bang theory for the energy spectrum of the cosmic microwave background radiation compared to the observed energy spectrum. By learning this fluctuation, we can know the basic parameters of the Big Bang theory.
Hubble’s Law
Both velocity and distance are indirectly observed quantities, it is what we can learn from Hubble’s law. By using the formula v = H0D, we can calculate the distance of the distant galaxies.
We can tell from the calculate that galaxies are moving in a straight line relative to the earth at a constant speed. The following diagram shows a typical plot of distance versus decline velocity, with each point showing the relationship for an individual galaxy.In this formula, V has symbolized the observed velocity of the galaxy away from earth; H is the Hubble constant, which is 67.80±0.77(km/s)/Mpc; D is the distance to the galaxy in Mpc(marginal propensity to consume).
The Big Bang
The most well-known of the origin of the universe is the Big Bang. Based on the General Relativity and the Cosmology Principle, we can compute the corresponding gravitational effects of the matter.
From the work of the dynamics of the universe, we can know that our universe is growing (red line).
This page by Hannah Y. ('19)