Misconceptions About Big Bang Model

-

The Big Bang as the origin of the universe: One of the common misconceptions about the Big Bang model is the belief that it was the origin of the universe. However, the Big Bang model does not comment about how the universe came into being. Current conception of the Big Bang model assumes the existence of energy, time, and space, and does not comment about their origin or the cause of the dense and high temperature initial state of the universe.

The Big Bang was "small": It is misleading to visualize the Big Bang by comparing its size to everyday objects. When the size of the universe at Big Bang is described, it refers to the size of the observable universe, and not the entire universe.

Hubble's law violates the special theory of relativity: Hubble's law predicts that galaxies that are beyond Hubble Distance recede faster than the speed of light. However, special relativity does not apply beyond motion through space. Hubble's law describes velocity that results from expansion of space, rather than through space.

Doppler redshift vs cosmological red-shift: Astronomers often refer to the cosmological red-shift as a normal Doppler shift, which is a misconception. Although similar, the cosmological red-shift is not identical to the Doppler redshift. The Doppler redshift is based on special relativity, which does not consider the expansion of space. On the contrary, the cosmological red-shift is based on general relativity, in which the expansion of space is considered. Although they may appear identical for nearby galaxies, it may cause confusion if the behavior of distant galaxies is understood through the Doppler redshift.

Comments

Post a Comment

Popular posts from this blog

Introduction

-
Image
Hello ✋🙋🙋🙋🙋✋✋✋ My Name is Aman Kumar I'm a student And I'm going to start a book written by me in my mind I'm not a professional writer this is my first time.This book is research of m y 8 years. OK i know u all thinking hmm.. Fak raha hai 8 saal lie no its not lie its true ye book meri invention hai to all human kind. Kya tum Saab ke maan me ye saval (question) nahi aata   ke ye universe kha se aye hum kaise aye kya hua hooga ki ye infinite( anant ) bramhand baana hoga aur humara ghar yani ( Dharti ) earth baani hogi kitna samye laga hoga is puure universe k o banne me kabhi is subject par vichar kara hai nahi kia hooga paata hai aaj kal ka moto nahi motorola nahi ( aaj kal ka suvichar yaar apple ne iPhone x launch kar diya Samsung ne s9 launch kar diya Intel ka naya processer i9 a gaya baas yahi par dimaag ke puri power khatam nahi yaar humare pass sirf 10...
Read more

Goldilocks Zone (part-2)

-
Image
Is presence in Goldilocks belt enough for having life on a planet? No, besides distance from the sun, if the atmospheric condition of the planet is accurate to form and sustain water to its surface, can only have the possibility of life. For instance, like Earth and Mars, Venus too considered in the habitable zone of the sun, but life chosen the earth only. Why? NASA's Mars rover mission evidences the ancient bacterial life on mars . Later, due to the thin atmospheric layer it was not able to sustain water to its surface. On the other hand, Venus is too hot to origin the life. Its atmosphere consist a very thick layer of carbon dioxide. It absorbs sun energy and restricts revert it back, thus create a non habitable furnace.   Bottlenecks for origin of life in the Goldilocks zoned planets: Billions planets in such zones in the universe orbit around different stars. For instance, NASA claims its recently discovered  TRAPPIST-1 planetary system have ...
Read more

First post in Big Rip Theory

-
Image
Big Rip In  physical cosmology , the Big Rip is a  hypothetical   cosmological model concerning the  ultimate fate of the universe , in which the  matter  of the  universe , from stars and galaxies to atoms and subatomic particles, and even  spacetime  itself, is progressively torn apart by the  expansion of the universe  at a certain time in the future. According to the hypothesis, first published in 2003, the  scale factor  of the universe and with it all distances in the universe, which is known to be increasing, will be found to increase exponentially. If this were to happen, the model speculates that eventually in many billions of years' time the scale factor would become  infinitely  large, pulling even subatomic particles and the fabric of  spacetime  apart, and ending our universe. The possibility of sudden  singularities and crunch or rip singularities occur only for hypothetic...
Read more