Astrophysics For Non-mathematicians : How to Picture This Universe at Bizarre Spacetime Curvatures.

Contents 

COVER

TITLE PAGE

ABOUT THE BOOK

PREFACE

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*Some Basics at very introductory level (page no. 15)

1) What is the fabric of spacetime?

2) The Universal constraints  

3)  The Special Theory of Relativity

4)  The General Theory of Relativity

*Black Holes (page no. 31)

1) How are Black Holes Formed?

2) Blackholes and the Fabric of Reality.

3) How do Black holes evaporate?

4) The new image of Sagittarius A * black hole.

5) Falling Into A Black Hole -1

6) Falling Into A Black Hole -2

7) How does gravity escape the black hole if nothing really can?

8) How does a black hole govern the future?

9) What if a black hole hits our planet?

10) Are we inside a Black Hole?

11) How to create a horizon around yourself?

12 ) The Black hole Information Paradox.

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*Wormholes (Page no. 78)

1) Einstein Rosen Bridge

2) Creating a Wormhole between two non-conducting metal plates.

*Gravity (page no. 88)

1) How does A Gravity Tractor move an asteroid from its Orbit?

2) The lens made out of gravity!

3) Waves through the fabric of Reality.

*Quantum Mechanics (page no. 102)

1) Quantum Mechanics (Introduction)

2) The Schrodinger cat experiment

3) The Observer Effect

4) The Quantum Zeno Paradox

5) What exactly is happening during a Quantum leap.

*Thermodynamics (page no. 128)

1) The Laws of Thermodynamics.

2) Thermodynamics And End of The Universe Part -1

3) Thermodynamics And End of The Universe Part -2

*The universe (page no. 142)

1) What is the BigBang?

2) The Cosmic Expansion.

3) The Observable Universe.

4) What is beyond the absolute boundary of our universe?

5) What was before the Bigbang?

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THE CONCLUSION (page no. 164)

* Some Interesting stuff (page no. 171)

1) Elementary particle physics (Introduction)

2) What are the Light Cones?

3) A notion of what distance exactly is

4) A notion of what mass exactly is.

5) What the heck Mass exactly is?

6) Why are galaxies like ours (Milkyway) flat, while the  planets and stars spherical in shape?

7) The Multiverse Hypothesis And The Many Worlds Interpretation.

8) The Participatory Universe

9) Are we alone in this universe?

Preface

The real beauty of astrophysics is the way it seems tough to imagine or visualize the same universe we are residing in  and that makes me laugh sometimes . And when we think mathematically, it just takes over a major part of imagination and delivers the results we needed.  But there is no competition to the physical imagination. May not every time one gets the answer by physical imagination but that failure itself makes the study of our universe much more beautiful 

A black hole is an infinite spacetime curvature, if is crossed then the dimensions of space and time seem to switch their roles! And one starts perceiving time with a freedom same as one has of various directions in space. What if I tell you that like positive and negative charges, mass also has its negative version? Imagine a particle with a mass having no positive, nonzero but a negative mass. These are one of the only mysteries of this universe that we know! and there is a lot much stuff out there to explore in fact we haven't even barely begun. ‘Astrophysics For NON- MATHEMATICIANS’ will take you far beyond our local scale. It will take you to places where the laws of physics seem useless and even very weird to imagine. At the end of the book, one will acquire a different vision of what reality is. This book combines my knowledge of astrophysics from various sources and the power of imagination. Remember, Humanity was born on Earth and is never intended to perish on it! I will show you throughout this book how our mere existence as observers has shaped this universe into the way it is. After writing the last chapter of this book I hypothesized that every star, galaxy, and a black hole in this universe is made to make available fuel to the very advanced human beings in the far future ( literally ! ).

Throughout my book, I have used the physical approach much more than the mathematical one as I know how tasty the physical illustration is and also believe that the readers throughout the book would enjoy this recipe of understanding the fabric of spacetime.

Love is the one thing we're capable of perceiving that transcends dimensions of time and space

- Interstellar (2014)

Some Basics At Very Introductory level

What Is The Fabric of Spacetime?

As school students, we all may have done a bit of coordinate geometry. Basically in two-dimensional coordinate geometry we used to locate a point in space by two numbers and by three in three-dimensional geometry. Well, what about describing the real-life events by the same coordinates? Let's consider the event of the arrival of a train and the ideal the question we ask is where will the train arrive and at what time? To emphasize , what you are asking here is what is the location in space where the train will arrive and at what time. For the description of real-life events, one needs time to be treated as a separate dimension. Having three spatial coordinates (x, y, z) and one-time coordinate t, the events can be successfully described. Well, this space and time in reality, is spacetime and not a separate thing, they are connected to each other. Spacetime (x, y, z, t) is a four-dimensional entity (three spatial and one time) and of course we humans can't see time as it's not spatial. One can be in rest in space, but time  still be continuously moving on (exceptions to this will be later discussed). Spacetime can be thought of as a mathematical object to describe the events and its what our universe entirely made of. spacetime had its origin in the Bigbang (initial fireball). We cant see spacetime as it's purely just a mathematical object, but we know that we live in three dimensional (spatial) world and we can feel time as the dynamic evolution of this three-dimensional world around us. Spacetime geometry is not static, it can be made to change its shape by the curvature carrying effect of mass energy ( later will be discussed in the general theory of relativity ) .

The Universal Constraints

For the existence of inhabitants of this universe and in fact the universe itself, several universal constraints are made by mother nature. In reality, it is the fact that we as the inhabitants of this universe and the universe as our home have an influence on each other in a way that several rules and constraints are followed. 

What Constraints? 

There are many universal constraints in this universe to talk about (which is the part of another chapter), But what one will have in this chapter is the idea of the logic behind their formalism. Some of the examples of universal constraints are the speed of light constancy, shortest achievable length, mass-energy density constraint, etc 

But why do we have these constraints at the first place?

Universe or to be more clear spacetime has a maximum limit of curvature it can exhibit. If the curvature goes too wild say until we get some mathematical infinities over there, then that part of the universe ceases to exist. It would be even rough to be called a part of the universe itself. Provided we have several universal constraints, not every system achieves the just mentioned mathematical infinities. The reason behind having universal constraints can be interpreted as the attempt of the universe to peacefully coexist with its inhabitants. 

Why are scientists afraid of mathematical infinities?

Mathematics seems to be describing our universe so effectively to consider anything else. In fact, mathematics is the language of the universe. Physics as a subject has several rules