5 interesting science fiction notions becoming a reality

 1.Time Travel:

There are so many science fiction movies that contain time travel and they are so marvelous, every human being has dreamt of having a time travel machine. Due to  Einstein's theories theoretical physics has proven that time travel is possible. But how? If you travel at a speed close to the speed of light time will slow down, and that is to protect the cosmic speed limit which is the speed of light (because nothing can go faster than it) and so let's assume that you want to travel in time, you get on board of a very advanced train. The trip starts and the train keeps accelerating until it reaches a speed near that of light. the train has to circle earth 7 times a second if it was traveling at the speed of light. Inside the train everything will seem normal, to you your watch is still ticking in the same rate and the length of the train is still the same, but to people watching from outside (if they could see anything) they would see your watch slow down and the train  shorter.  Let's say you started the trip in 2013, after a week of circling earth at a speed near the speed of light, you will get back to earth in 2113. Besides this isn't the only way for traveling to the future, a black hole is a time travel machine and wormholes are too. Wormholes are everywhere but they are very tiny so if we were able to enlarge these wormholes we can travel in time and space.

 

2. Teleportation:

 It is a very lovely notion, imaging you could travel from earth to mars instantaneously, or from earth to another galaxy without having to really "travel" this would be amazing. Actually the work on this started in the beginning of this century and it was possible due to a quantum property called quantum entanglement, it is a bond between two particles, if you change the properties of one the other will change also instantaneously no matter how far the particles are from each other. Today scientists are able to teleport particles instantaneously from one place to the other due to quantum entanglement. so if they were able to teleport particles will they some day be able to teleport humans?

3. Invisibility cloaks:

The idea is too good to be true maybe, but actually scientist have made a cloak that is able to bend light giving you the illusion of invisibility. Using meta materials which are artificial materials synthesized by humans, these materials can bend electromagnetic radiation and so they can bend light and this will cause the illusion of invisibility.

4. Flying humans and floating cars: 

Yes humans can fly! Maybe one day we will, it is possible, actually there are trains that travel on air hovering just above the track due to magnetism, they travel at up to 580 km/h, it is due to a quantum phenomenon called superconductivity, some ceramics like barium or copper oxide become superconducting when exposed to liquid nitrogen which will cool the ceramic to -200 degrees centigrade, the ceramic will now be able to induce powerful magnetic fields and when you place a magnet on top of the ceramic it will float because the magnet will induce a secondary magnetic field and the two magnetic fields will repel each other making the magnet float.

5. Space elevators: 

Imagine an elevator that reaches up to space. Seems like science fiction doesn't it? But it is possible using carbon nanotubes which can be suspended from the space to earth. Imagine how much easier and less expensive space travel will become if these elevators were invented in the future, they would be used to launch spaceships and  to send satellites into orbit around the earth at a very low cost.   

4 interesting laws that apply only to particles

1. A particle can exist in more that 1 place simultaneously: 

As interesting as it may sound, a particle actually exists in more than 1 place at the same time until an observer observes it. So, if that was true why don't we assume that we exist in more than one place at the same time, since we are made of these particles. More strangely, when you want to decide between two actions, let's say between heading right or heading left  if a neuron was responsible for the choice then you would do both at exactly the same time!

  

2. Particles can pop out of nothing: 

Physicists have found out that at the subatomic scale, a particle can pop out of nothing, and it can disappear and then reappear in some other place, that's why some assume that our universe popped out of nothing because at the beginning our universe was smaller than an atom, so quantum laws apply to it at this scale.

3. A particle is at the same time a wave:

When you observe the particle it acts like a particle having a definite place and a definite path, but when you aren't observing it the particle acts like a wave occupying all available places and going in all available paths simultaneously!

4. Your observation can affect the history and future of the particle: 

If a particle is moving to a certain place, without you observing it, acting as a wave, taking all possible paths simultaneously and then you decide to observe it at the end of the path, the particle will change it's whole path and will start acting like a particle, as if it goes back in time to its starting point and acts uniquely as a particle.






This was proved by the double slit experiment:

Particles were fired at a screen before which there is a wall having two slits, when scientists where observing the particles, a particle took either one path or the other, while when they weren't observing, the particle took all possible paths. another time the observers decided to observe just before the particles hit the screen, strangely the particles which were initially acting like waves, started acting as particles and as if going back in time, and decided to go in either one or the other slit! These results keep me thinking. Is our observation of the cosmos affecting its history and future?




It seems like the microscopic world is stranger than anything you could imagine, at this scale everything that seemed "logical" to us is shattered. But studying the microscopic world can lead us to understanding the macroscopic one, although it looks nothing like what we experience.Actually, as we are developing in science more and more we are discovering that reality is stranger than fiction.

5 Interesting Theories That Might Be True!

   1. We are brains in a jar:

There is a theory that actually states that we and everything around us are mere brain simulations. Think about it, if someone right now puts an electrode in your brain and stimulates the part of your brain which makes your leg rise, it will rise. If they stimulate the part which makes you see someone, you will see him/her. Think of it like this: when you are dreaming, the dream feels so real no matter how distorted and illogical it is and it all seems perfectly normal until you wake up that you realize something was wrong.
When i first heard about the theory, although interested i thought it was wrong because when you are dreaming, the stuff you see are all based on what you've seen in real life combined together in a bizarre way so if we haven't experienced anything at all how can we build experiences out of nothing? but then if we were mere brains in a jar, the "reality" we are living is all nonsense it is also a projection and what applies here doesn't have to apply there.

   

2. We might be living in more than one place/universe at the same time:

If you study quantum physics you'd know that a particle exists everywhere at the same time until an observer observes it, but we are made of these particles, if so we might exist in more than one place -one universe maybe- at the same time.

  

3. Every Black Hole Contains a Universe:

Some scientists believe that in every black hole there is a universe, if that was true why don't we assume that our universe is contained in a large black hole which is in a universe contained in another black hole and so on, and every universe has its own reality and set of laws.

  

4. The Current Reality is a Dream: 

Actually it really makes sense to me, when you are dreaming the dream seems as real as reality, so if reality is a dream, maybe one day when we die we will wake up in another dream and realize that we were dreaming, and then wake up in the next dream and then the next, and so on...Maybe we had a dream before we got born into this one and it was a two-dimensional world and maybe the next dream might be a four-dimensional world (I mean 4 seen and experienced dimensions).

 

   

5. We Live In The Matrix:

There is a theory that states that our universe is a simulated one running by a massive computer programmed by a very advanced civilization. Although everything around us seem so real to us but we may be mere stimulation of a computer.

What's so disturbing, yet interesting about these theories is that you can't disprove them whatsoever, and if any of them is true, then what a huge lie life is... think of all the scientists studying a non-existing world, imagine yourself putting huge amount of effort in your dream to study your dream world, what a waste of effort and time... think of all the god believers, what a myth god would start to seem to them, think about how many times you've gotten angry or sad, or have made someone angry or sad, think of how many times you have dreaded death. I guess such theories can make us realize how silly life is, these theories are shouting in our faces to live life not caring a lot, having as much fun as we can, ignoring anything that makes us sad, and to stop worrying and start living.

Don't take life so seriously, it might as well be a dream.