Saturday, March 7, 2020

What is Dark Matter?


#According to Newton, gravity is a Force of attraction between any two masses

#According to Einstein gravity is as a result of the curvature of space and time

#According to me and others gravity is a result of the casmir effect due to quantum vacuum fluctuations

#The problem: Newton and Einstein gravity cannot describe the motion of the outermost stars and gas in galaxies

#To save Einstein's and Newton's theories, many physicists and astronomers have postulated that there must exists large amount of dark matter in galaxies and also clusters of galaxies that could strengthen the pull of gravity and lead to an agreement of the theories with data.

#Is dark matter responsible for differences in observed and theoretical speed of stars revolving around the centre of galaxies, or is it something else?


•First: From page 80-86 and 134-150 we show that gravity is not a force but an emergent property that can be deduced from other alternatives.

•From page 156-160 we show that the observed flat rotation curves are what they are because of our newly discovered Fifth force.

• From pages 92-104 and 273-276 we show that dark matter is a particle of a mass close to Planck mass relics (or primordial black holes) which remain whenever a black hole evaporates or quantum black holes formed in the early universe after the big bang.
 
From the beginning we have been showing you how you can solve quantum gravity and we have pointed out some points where general relativity breaks down. We said that, we can only solve quantum gravity by solving problems where gravity or general relativity fails. We have sofar delt with; the singularity problem and dark matter. Now in the next issue we shall see how you can quantize gravity.

However you can skip this and read more from this bestselling book on quantum gravity
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Monday, March 2, 2020

Singularity Resolution in Quantum Gravity

The appearance of singularities in any physical theory is an indication that either something is wrong or we need to reformulate the theory itself. Singularities are like dividing something by zero. General relativity is one of those theories plagued by singularities and this problem is in existence because GR deals with universes that are zero in size (infinite densities). However, quantum mechanics suggests that there may be no such thing in nature as a point in spacetime, implying that space time is always smeared out occupying some minimum region. There fore we need a unification of Quantum mechanics with General relativity to resolve the singularity problem. 

In Quantum Gravity in a Nutshell1  I give out several solutions to the singularity problem. These are outlined below; 

1. Evidence for Planck stars
2. Evidence for Maximal acceleration and
3. Minimal length

You can learn more from page7 up to page 35 of my book Quantum Gravity in a Nutshell1