If 2 galaxies are close to one another perhaps in a galaxy cluster, they are able to merge with each other to make one big galaxy, causing the super massive black holes from each galaxy to interact as well[i]. When galaxies merge together, there are 2 phenomena that could happen to the super massive black … Continue reading Super massive black holes in the evolution of galaxies
Galaxies begin as small clouds full of gas and dark matter. The gravity in the cloud gathers all the gas together to make a star which is ready to begin nuclear fusion. Nuclear Fusion is the process of combining four hydrogen nuclei to make helium nuclei in three stages. Stage 1: 2 protons fuse to … Continue reading Super massive black holes in the formation of galaxies
Unfortunately, astrophysicists are unable to view a super massive black hole being formed due to us being very far away from one. Despite this there are theories on how a gigantic black hole can form. Firstly, a small black hole that was formed due to a collapsing star could attract matter and then absorb … Continue reading The formation of super massive black holes
This is the maths behind time dilation. Feel free to check out our time dilation notes first. When an object travels at relativistic speeds (i.e. close to the speed of light), for each observer in a specific inertial frame, the time at which the event will occur will be different – though remember one is … Continue reading How to derive the equations for Time Dilation
Here is a little refresher on some definitions that we will be using: Simultaneity – ‘Simultaneity is the relation between two events assumed to be happening at the same time in a given frame of reference. According to Einstein's theory of relativity, simultaneity is not an absolute relation between events; what is simultaneous in … Continue reading What is Time Dilation?