Alternate Realities : Parallel Worlds!!

Hey Guys!! Here is one more thought in my mind which I am about to share with all of you. First of all, I have a question for you : Is it possible to travel back in time? You are free to comment and answer.

Well, what I feel is that Time Travel is not just a fiction-piece but it can be implemented practically in future once we have the required knowledge of physics and technology. Travelling into future as well as past is possible. It has been a matter of debate about travelling back in time because it gives rise to some of the most common paradoxes. It is just because we think of our world, our universe as the only one.
According to The Multiverse Theory we can find an answer to the question of travelling back into the past. There is not just one reality, but instead there are an infinite parallel series of realities. What we are experiencing our lives as it is now is just because of the future we chose to live in. At every point in time, there is an infinite possibility of the future ahead of us and we chose one of the futures among them to form our present reality.

In the Chaos theory,the butterfly effect is the sensitive dependence on initial conditions; where a small change at one place in a nonlinear system can result in large differences to a later state. For example, the presence or absence of a butterfly flapping its wings could lead to creation or absence of a hurricane.

Just imagine, what would happen if we travel back in time and alter the course of our future. Would it be the same reality that we are experiencing now. Well, according to the Butterfly Effect I don't think so. Any small change in the past could have large changes in our futures. We would fall into a different reality, a parallel universe. Our destinies would have changed and we would fall into a completely different coarse of reality. This theory also answers the question of Why don't we see people from the future in our present or our past. The answer to this question is again the concept of alternate reality. Although, we know only the theoretical aspects of these concepts without any practical evidence but one day with higher level of Physics and Technology we will be able to practically travel through time.

Any new suggestions or thoughts are always welcome. That's All.
 

My Dreams!!

Here is one of my poems which I would like to share on my blog. This poem was written on January 16th, 2008.

My Dreams!!

My heart is full of ambitions;

But, unfortunately I don't know,

How to complete my missions?

Or my ideas, how should I sow?

For them to become a perfect vision.

I am totally confused from head to toe;

And sometimes I feel to quit and say NO,

To all my ideas and concepts.

But, my will power does not let me to lay low.

Because sometime in my future,

All my dreams will take a final shape,

And will not remain;

Just a useless thought.

Because it will no longer be a Dream,

As it will come true with a radiant gleam.

And with a luminious beam;

It will spread everywhere in the space

And bring a wide smile to my face!!

AIRBUS A380 : The Largest One!!

Hey Friends!!
So, I was just browsing the web and suddenly I found this interesting stuff about the airbus a380. Most of you might know that the Airbus A380 is the largest passenger airliner in the world. But, I guess you don't know much about it in detail. So, here are some interesting facts!

The Airbus A380 is a double-deck, wide-body, four-engine airliner manufactured by the European corporation Airbus in 2005. It was mainly designed to challenge the Boeing's Monopoly in the large-aircraft market. It has a capacity to carry 525 passengers in a comfortable three-class configuration, and up to  853 in a single-class configuration that provides wider seats than its competitor. Overall, the A380’s two decks offer 50 per cent more floor surface than any other high-capacity aircraft.

In addition to offering superior levels of passenger comfort, the A380 provides the lowest fuel burn per seat – which allows airlines to substantially reduce CO2 emissions for a healthier environment while achieving profitable, sustainable growth for decades to come.

It has a cruising speed of Mach 0.85 (about 900 km/h or 560 mph at cruising altitude). Many advanced materials have also been used in its design. While most of the fuselage is aluminium, composite materials comprise more than 20% of the A380's airframe.Carbon-fibre reinforced plastic, glass-fibre reinforced plastic and quartz-fibre reinforced plastic are used extensively in wings, fuselage sections (such as the undercarriage and rear end of fuselage), tail surfaces, and doors.The A380 is the first commercial airliner to have a central wing box made of carbon fibre reinforced plastic. It is also the first to have a smoothly contoured wing cross section. The wings of other commercial airliners are partitioned span-wise into sections. This flowing, continuous cross section optimises aerodynamic efficiency.The new material GLARE (GLAss-REinforced fibre metal laminate) is used in the upper fuselage and on the stabilisers' leading edges. This aluminium-glass-fibre laminate is lighter and has better corrosion and impact resistance than conventional aluminium alloys used in aviation.

The A380 features a bulb less illumination system. LEDs are employed in the cabin, cockpit, cargo and other fuselage areas. The cabin lighting features programmable multi-spectral LEDs capable of creating a cabin ambience simulating daylight, night, or levels in between. On the outside of the aircraft, HID lighting is used for brighter, whiter illumination.

The Airbus A380 can be fitted with two types of engine, one of them being the Rolls-Royce Trent 900. Only two of the four engines are fitted with thrust reversers. Noise reduction was an important requirement in the A380's design, and particularly affects engine design.The aircraft's 350 bar (35 MPa or 5,000 psi) hydraulic system is an improvement over the typical 210 bar (21 MPa or 3,000 psi) system found in other commercial aircraft since the 1940s. First used in military aircraft, higher pressure hydraulics reduce the size of pipelines, actuators and other components for overall weight reduction. The 350 bar pressure is generated by eight de-clutchable hydraulic pumps. Pipelines are typically made from titanium and the system features both fuel and air-cooled heat exchangers. The hydraulics system architecture also differs significantly from other airliners. Self-contained electrically powered hydraulic power packs serve as backups for the primary systems, instead of a secondary hydraulic system, saving weight and reducing maintenance.

Obviously, the Airbus A380 is one of the largest aircrafts. But, apart from this there are even other jumbo airliners in the world. A comparison between some of the largest aircrafts in the world can be seen here.

THE UNIVERSE FROM "NOTHING"!!

At first, one might object to the notion of a multiverse, because it seems to violate known laws, such as the conservation of matter and energy. However, the total matter/energy content of a universe may be very small. The matter content of the Universe including all the stars, planets and galaxies, is huge and positive. However, the energy stored within gravity may be negative. Now, if you add the positive energy due to matter to the negative energy due gravity, the sum may be close to zero! In some sense, such universes are free. They can spring out of vacuum almost effortlessly.

In fact, to create a universe like ours may require a ridiculously small net amount of matter, perhaps as little as an ounce. This idea of creating a universe from nothing was first introduced by physicist Edward Tyron of Hunter College of the City University of New York, in a paper published in Nature Magazine in 1973. He speculated that the universe is something "which happens from time to time" due to quantum fluctuation in vacuum.

This theory help us to answer very practical questions about the universe. For example : Why doesn't the universe spin? Everything we see around us spins, from tops, hurricanes, planets, and galaxies, to quasars. It seems to be a universal characteristic of matter in the universe. But the universe itself does not spin. When we look at the galaxies in the heaven, their total spin cancels out to zero. If the universe did spin, then time travel would become commonplace and history would be impossible to write. The reason why the universe does not spin may be that our universe came from nothing. Since the vacuum does not spin, we do not expect to see any net spin arising in our universe. In fact, all the bubble-universes within the multiverse may have zero net spin.

Why do positive and negative electrical charges balance out exactly? Normally, when we think of cosmic forces governing the universe, we think more about gravity than the electromagnetic force. Although, we take for granted, the cancellation of positive and negative charges is quite remarkable, and has been experimentally checked to 1 part in 10^21. If there were just 0.00001% difference in the net positive and the negative electrical charges within our body, we would be ripped to shreds instantly, with our body parts thrown into outer space by the electrical force.

The answer to these enduring puzzles may be that the universe came from nothing. Since the vacuum has net zero spin and charge, any baby universe springing forth from nothing must also have net zero spin and charge. There is one apparent exception to this rule that the universe is made of matter rather than antimatter. Since matter and antimatter are opposites, we might assume that the big bang must have created equal amount of matter and antimatter. The problem, however, is that matter and antimatter will annihilate each other on contact into a burst of gamma rays. Thus, we should not exist. The universe should be a random collection of gamma rays instead of teeming with ordinary matter. If the big bang were perfectly symmetrical (or if it came from nothing), then we should expect equal amounts of matter and antimatter to be formed. So why do we exist? The solution proposed by Russian Physicist Andrei Sakharov is that the original big bang was not perfectly symmetrical at all. There was a tiny amount of symmetry breaking between matter and antimatter at the instant of creation, so that matter dominated over antimatter, which made possible the universe we see around us.

If the Universe came from "nothing", then perhaps nothing was not perfectly empty but had a slight amount of symmetry breaking, which allows for the slight dominance of matter over antimatter today. The origin of this symmetry breaking is still not understood.

*This is an excerpt taken from Michio Kaku's book Parallel Worlds: A Journey Through Creation, Higher Dimensions, and the Future of the Cosmos.* 

People Who Inspire Me The Most!!

There are some people who have always inspired me from the very beginning of my life, since when I got to know about them. These are the people whom I have always been respecting in my life and I hope to continue this in the future. This is my list of the top personalities in the world who inspire me the most and still continue to do so. 

• AMARESH CHANDRA MISHRA, My Father 

He has been the very first person in my life from whom I learnt a lot of things - from speaking, walking and reading to humbleness, courage, determination and a lot of countless qualities. I can't imagine my life without my father. My father is a lecturer in a college. Of the many teachers who have taught me till now, I would say that he is the best one. I feel inspired by him. I feel proud to be his son and also his student and I will always try my best to make him feel proud of me too.

• ALBERT EINSTEIN

Sir Albert Einstein has always been my inspirational hero. His ideas and work set of a spark in me and now I too dream of becoming a successful theoretical physicist. When I first read about him I was really motivated. I was surprised to know that he overthrew Newtonian Mechanics by his new theory of relativity which he started to think about when he was 12. He was a genius. He always inspires me. Whenever I am irritated with my studies, I think of Einstein and suddenly I start to feel a new interest in that subject. His ideas always impress me. Most of us might not know this but, he was awarded the Nobel-Prize for his work on the Photoelectric Effect and not on the Theory of Relativity because relativity was still considered somewhat controversial. In layman's terms no one understood it clearly then. His equation E=mc^2 is not just an equation but a complete description of Space intertwined with Time. Hats-Off to such a genius.

• STEPHEN HAWKING

Stephen William Hawking, an English theoretical physicist and cosmologist has always been and is still inspiring me. It all started when I was 14 and I randomly picked a book from the book seller at the railway station to entertain my journey. I did not know of Hawking before this incident but as soon as I started to read the book it was just like the best things I had ever got to read and learn. I loved it. The book was "A Brief History of Time". This was the time when I got more interested in "Theoretical Physics". Before this I was interested in Astronomy which I still am but I like Theoretical Physics more than that because it explains a large number of phenomena in our universe. After this, I always kept on reading more and more about him. I was really shocked to know that a Man who writes so brilliantly is paralyzed with the motor-neuron disease. This made me feel that nothing but only will power is the strongest one in the world. We can achieve anything with our will-power. I have got an opportunity to read some of his most brilliant works like "The Universe in a Nutshell" and "The Grand Design". These books are really worth reading for those who want to know about the universe and beyond. Stephen Hawking held the post of Lucasian Professor of Mathematics at Cambridge, the chair held by Isaac Newton in 1663 for thirty years.

• MICHIO KAKU

Dr. Michio Kaku is professor of theoretical physics at the City University of New York and a cofounder of string field theory. Again, I was inspired by the writings of this person. He is the author of several widely acclaimed books, including "Visions: How Science Will Revolutionize the 21st Century", "Beyond Einstein: The Cosmic Quest for the Theory of the Universe","Hyperspace" and "Parallel Worlds". Among these I really liked Hyperspace. Its awesome and it was named one of the best science - book of the year by The New York Times and The Washington Post. I liked Hyperspace so much that I named this website after it. It is one of the best books ever and a must-read. I like the personality of Michio Kaku. He is so skilled at writing materials with analogies plucked from our daily life. He drives my thoughts towards theoretical physics.

Thus, these were a few people who have always inspired me and always paved the way to my destiny. There are many other people who have also inspired me exept the four mentioned. I respect all of them for their uniqueness.

THE MULTIVERSE !!!!

It is a common belief that our universe is the only one, But, according to some of the most brilliant minds on the planet this is not true and I too personally believe in the concept of "MULTIVERSE". Now, first of all, the basic factor regarding all this is Inflation. We know that our Universe is expanding. The WMAP satellite has experimentally confirmed this fact. All this is leading to a new cosmological picture of our universe.

According to the "Inflationary Universe Theory", a major refinement of the big-bang theory, first proposed by physicist Alan Guth of MIT , in the first trillionth of a trillionth of a second, a mysterious antigravity force caused the universe to expand much faster than originally thought. This inflationary period was unimaginably explosive, with the universe expanding much faster than the speed of light. (This does not violate Einstein's dictum that nothing can travel faster than light, because it is empty space that is expanding. For material objects, the light barrier cannot be broken.) Within a fraction of second, the universe expanded by an unimaginable factor of 10^50.

The Inflationary universe, although consistent with the practical data, still does not answer the question : What caused inflation? Till now we have been trying to find an answer but its still unanswered.

Because no one knows precisely how inflation started, there is always the possibility that the same mechanism can take place again - that inflationary explosions can happen repeatedly. This is the idea proposed by Russian physicist Andrei Linde of Stanford University. According to this "Multiverse" theory, a tiny patch of a universe may suddenly inflate and "bud", sprouting a "daughter" OR "baby" universe which may inturn bud another baby universe, with this budding process continuing forever. In this way universes may be continually giving birth to new universes. In this scenario, big bangs have been happening continually. Thus, we may be living in a sea of "Multiverse" or "Megaverse".

The Power Of Technology.

Technology is perhaps one of the most common words that we come across in today's life.
But, how is it defined? The Merriam-Webster Dictionary defines 'Technology' as 'the practical application of knowledge especially in a particular area.' Now, this is what I was looking for - the practical application of knowledge. To Know about anything we follow the scientific method. i.e We first observe, experiment, form a hypothesis, theorize, and finally validate our theories through technology.
Technology is a measure of our potential. According to the sci-fi movie 'Iron Man 2', it is brilliantly said "Everything is achievable through technology. Technology can give us better living, robust health, and the possibility of world peace." In my opinion this is completely true. Every time I see this movie I ask myself the same question "When will we have the technology to construct the Iron-Man Suit?" Someday we will achieve it but let us leave this for the future.  
Technology is always dynamic. Everyday we keep on discovering or rediscovering something exotic. Ultimately, we explore our knowledge practically through technology. For Example : First, we discovered light, its properties and then we invented the optical instruments such as a camera, a microscope etc. Similarly, we first discovered the structure of the nucleus and then invented nuclear reactors. Again, we first learnt about the sub-nuclear particles and then invented the particle accelerators which we still use to discover something new. What seemed as impossible one day is very possible through technology today. For Example : 100 years ago no one had ever thought that we could communicate with other people around the world so easily. Technology has made this possible via telephones. Today its not a miracle to talk to people on the other side of the world. Technology simplifies our lives. There are a numerous things which were totally impossible in the past but are possible now.
Today, we think of some issues like Time Travel, Teleportation, Travelling more than the speed of light as impossible events but are they really so? Technology might one day surely make all these stuffs possible. We can never know the limit of our technology. It may not be possible in the present but what about the Future? There might be some geniuses out there trying their best to find the answer to everything including the ultimate question of our universe - "What is the origin and the fate of the universe?" And unlike the answer given in The Ultimate Hitchhiker's Guide to the Galaxy, ours won't be simply 42.