Wormholes


What is the shortest distance from one point to the other? How can we travel extremely large distances through the universe(distances such as billions of light years)? Are wormholes possible?How can we travel through wormholes and how are they formed?

If I draw 2 points with some separation, and then I ask you to tell me the shortest path between the two points, you might say it's a straight line connecting the two points. But, if I fold the same paper in such a way that the two points are touching each other, a much shorter path is created....

WHAT IS A WORMHOLE?

A wormhole, also called the Einstein-Rosen Bridge, is the theoretical(imaginary) path between two very distant points in the universe, which passes through spacetime.
(If you do not know what is spacetime, then go to:  https://theuniversebeauty.blogspot.com/, and read my article on it). Wormholes are a result of the general theory of relativity.



Ludwig Famm, an Austrian Physicist, mentioned that there is one more solution to the general theory of relativity. He said that there is (theoretically) a 'white hole', which is a time reversal of a black hole.
          A white hole is assumed to look like this

 He also said that entrances to both black and white holes could be connected by a spacetime conduit. Then later, Einstein and Nathan Rosen said more on the idea, stating that there might be some shortcuts through the spacetime, and this came to be know as the Einstein-rosen bridge.
The whole concept of wormholes is very hypothetical.

ABOUT WORMHOLES
They are very, very unstabilized, and collapse quickly enough to not allow anything to pass through them, not even light. Some solutions of general relativity show that the mouth of each of the entrances of the wormholes might be black holes. The entrances might be circular in shape, and they are known as 'mouth' of the wormhole. Thus, a wormhole as two 'mouths' , connected by the 'neck'. 
They are presume to be of very small diameter, like around 10^-30 cm. 

STABILITY OF WORMHOLES
As I have mentioned before, Wormholes are highly unstable, and collapse very soon. But, theoretically, there exists something called as 'exotic matter' which can stabilize a wormhole. Exotic matter is different from dark matter or anti-matter. Exotic matter has negative energy density and a large negative pressure. Such matter has only been seen in the behavior of certain vacuum states as part of quantum field theory. So, if there is a wormhole with a lot of exotic matter in it, it may very well be stable. 

PASSING THROUGH WORMHOLES
Taking the size into consideration, with the universe expanding, we my expect the wormholes to expand. Next, exotic matter can make it stabilized. So, it may, after all, be possible for something to pass through a wormhole. The fact of something travelling so far in so less time is amusing. Now think of it this way, If you travel a through a wormhole, in a very shorter distance you can travel millions of light years. This means that you can travel kind of faster than light. Light will take a lot of time to travel through a huge distance out of the wormhole. But, If you use the wormhole, you can cover the same distance in much less time. This clearly implies that you have traveled faster than light. But, if you travel along with light in a wormhole, light will certainly be way faster than you.



TIME TRAVEL THROUGH WORMHOLE
This, again is a solution to the general relativity, and, very hypothetical. Wormholes connect not only two distant points in space, they also connect two points in Spacetime. This would mean time travel. 

WILL WE KNOW ABOUT WORMHOLES SOON?
NO. Our present technology is not advanced enough to detect or pass through wormholes. Moreover, everything that we know about wormholes is highly hypothetical, and may even be false. Do not expect to watch in the news that "Scientists have found wormholes" for a lot of coming years. The very concept of wormholes and travelling through them needs a lot of advanced technologies, which cannot be expected in the near future. Plus, even if we have found wormholes in the coming decades, we may not be able to travel through them because of stuff like exotic matter or its size and stability. 

Visit https://theuniversebeauty.blogspot.com/for more such articles.
Please subscribe for more such articles.


Hope you found it informative and interesting. Please comment if you want something to be changed or added, or if you want me to write about some topic related to the universe.

Comments

Post a Comment

Popular posts from this blog

Gravitation and General Relativity

Image
What is gravity, the term we're all used to? what do we know about it, and what remains unknown? How did Einstein make huge contributions to this field? What does Relativity talk about? Find out the answers to all these questions here, in this article. History of gravity This is where Kepler presented his first two laws. credits:  http://www.sothebys.com/ So there was this Danish nobleman and astronomer, named Tycho Brahe. He made a lot of pretty accurate observations (considering the epoch and the limited technology available during that time) regarding the positions of planets and their orbits. He had this student named Johannes Kepler, who would later become very famous by the laws named "Kepler's planetary laws". He presented three laws, concerning the speed and positions of planets in the solar system, based on Tycho Brahe's observations. Then came our lovely old friend - Sir Isaac Newton. Using Kepler's laws, observations, and of course his int
Read more

Spacetime, Time Travel and Dilation, Relativity

Image
What is Spacetime? How is it different from the normal time on earth? What is time dilation, and how can we use it to time travel to the future, and how can we achieve it? What does the general theory of relativity state? So.. earlier, it was all going good... The people then thought that time was flat, as it passes evenly through a place. But then the world came across a guy called Albert Einstein, who ruined it all. He said that the time was curved... He said that time was relative. He called this the theory of relativity, which established a connection between space and time. He thought of an idea in which fabric permeates the whole universe... The Space Time . Space time is curved, not flat, and it can be bent and twisted out of it's form by matter and energy, and that's where this picture comes in. Notice the grid below the planet(or whatever that is). Well, that is time.The force of gravity and the matter of the planet bends  the time around it. GRAVIT
Read more

Dark Energy

Image
What is Dark energy? What is it made up of? What is it responsible for? What is it's source? Is dark energy real? Find out the answers to these questions in this article below. We all know about the big bang theory-the origin of the universe. You might also know that the universe is expanding. With expanding, I mean that the galaxies are moving further apart from each other. But, there is something confusing, something that baffles the scientists- The expansion is accelerating , which is peculiar, as the universe is devoid of air, and there is supposed to be no other force or energy in space. But still it happens. The universe is accelerating Which means there must be some force or energy out there. This, we named, the Dark Energy. Dark energy must be very powerful, as it has to overcome the gravitational forces that pull the galaxies together. More than 80% of the universe is made of dark energy. This means that the 'space' as we know is not made of nothing
Read more

The Supernova

Image
What comes to your mind when you think of the universe? probably a huge number of stars in a black background..probably the sun shining on some planets.. Just after supernova, this is seen. But the universe is a lot more than that. The universe is very, very and very energetic and active. There is a supernova happening right now even when you are reading this article, though millions and millions of light years away! Yes, I am now going to talk about this super energetic phenomenon - A Supernova. A Supernova looks something like this: So you surely do know about gravity, right? Gravity plays a huge role in a supernova. So these hydrogen, helium, etc. all types of molecules and gases are present in a star. The gravity of a star is intense, owing to it's huge mass. This gravity pulls these atoms and molecules close together at the nucleus of the star, and intense pressure is developed there at the center. This continues to build up over a long period of t
Read more

Neutron Star

Image
What is a neutron star? What does it look like? What are the mind-blowing activities that happen near it and in it? How is it formed? In my last blog, I wrote about Supernova, the end product of which is a 'neutron star', and that's what I'm going to talk about now. So.. Which is the densest thing? answer: Osmium, density:  more than 100 grams in a teaspoonful. But that's only on earth. The universe is of another level.. The densest thing in the universe is the neutron star.                       That's what it looks like. What do we know about the regular matter on earth? - It is made up of atoms with electrons revolving around neutrons and protons. But it's completely different with a neutron star. The lines you see near the neutron star in the figure above are the strong magnetic field lines, enough to pull out the iron in the haemoglobin inside your blood. As I have discussed in my previous blog,namely,"the
Read more