Time travel- third possibility

Phi masons which are highly unstable particles decay pretty quickly, but when they are accelerated at the speed closer to light they lasts 30times longer, which means that time travel is possible if we can accelerate closer to light's speed

lets for instance, our physicists successfully built a track along the earth's circumference and designed a train that can accelerate closer to light's speed. If the train has to travel at the speed of light, it has to circle the earth 7 times in a second, that's something we can't even imagine..right, anyways we can't cross or even reach the light speed but can get closer enough to travel in time, closer in the sense 99.9% that of light's speed. As the train begins its journey and starts accelerating at the rate 99.9% that of light's speed, the time inside train starts flowing slowly when compared with the rest of the world. Their 1 week of travel inside train equals 100 years for us and they will unboard to see the future earth.

What if a child inside the train starts running, does the added speed cross the speed of the light ?

The answer is no, because as he gets closer to the speed of light he feels heavier and heavier and to reach that point he need infinite energy which is practically impossible.

The Apollo with a speed of about 25000 miles/hour is so far the fastest space vehicle. To travel in time, we need much faster and much heavier one, almost 2000 times faster.
The design says, the initial acceleration of that massive ship is very small but picks up acceleration to reach half the speed of light in 2 years and 2 more years it reaches 90% that of light speed at that time, its would reach our nearest solar system ,Centurion. 2 more years, 99.9% and starts traveling in time. one day on board equals to a whole year on earth.To reach the edge of the galaxy all they need is just 80 years

Most of the time, we try through the right methods to solve wrong problems. Identifying the right problem is the challenging task and once we are through with this, then solving it becomes simple and easy.

click here to know first two possibilities
Read more...

time travel possibilities in detail

Time is considered as fourth dimension with the other three dimensions being filled with space. Until now we all know how to travel in space. In the near future, it is more than a possibility that we can even travel in time. Time travel is no more a fantasy.
three of the possibilities have been under consideration so far and im going to explain the first one here
first possibility:
Nothing in the world is so plain, lets take a snooker ball, if we can observe it more closely, we can notice wrinkles and holes on its surface. If we can go deeper and deeper down the smallest scale smaller than molecules,smaller than atoms we will land in to a place called quantum world. This is the place where worm holes appear at a size of around billion trillion trillionth of a cm. These infinitesimally small holes actually are gateways for our time travel.
Scientists believe that these worm holes can be made to appear in large scale and if someone dares to dive into it, he might even travel back in time and reach a point in past.
But lot of physicists been asking a question like if it happens that someone, lets say 'x' went in to past and kills his own self, who is 'x' then. It violates the fundamental law of universe. This is a major drawback and has its own serious consequences.
But this is not the end, the other two possibilities are far more interesting
second possibility
This one stems from Einstein's theory of general relativity. GPS, which is formed by hundreds of satellites revolving around the earth explains this concept better.the atomic clock that is equipped inside them is so accurate that it just delays in the order of 10⁻⁹ seconds per day. Even being so accurate, it needs massive corrections at regular intervals along the orbit.the problem being time warp, which means that time being very linear acts non linearly at certain points in space.they even exist on earth.
Giza pyramid, which weighs around 40 million tons is surrounded by time warp. somebody who stay closer to that experience relatively slower drift in time. For an observer who stays closer to Giza pyramid, outside world appears a bit hurried.
If we really want to traveling time, we need something much more massive than Giza pyramid. Fortunately the center of our galaxy is equipped with a super massive Black hole on the order of hundreds of billions of solar masses. It can slow time more than anything in our galaxy. Time gets warped near the super massive blackhole because of its heavy gravitational pull. Lets say if our scientists had built a space ship tthat can reach the center of Milkyway and is set to orbit around the super massive blackhole, for every 60 min of orbit,crew inside the spaceship experience 8 min lag. Round and round they go the ship and crew travels in to future more swiftly. Their 5 days of orbit around the super massive blackhole almost equals 8 years on earth, and when they return they would see the future.
Building a spaceship to orbit around such a massive blackhole, withstanding its massive gravitational pull is almost impossible, but there is one last and best hope of time travel...


click here for third possibility

check this video


Read more...

time travel possibilities

Time,being the fourth dimension of our universe,is interconnected with the space(three dimensions)in a way that it cannot exist without space, and space cannot exist without time. This kind of relationship between time and space is called the spacetime continuum, which means that any event that occurs in the universe has to involve both space and time.
According to Einstein's theory of relativity, time gets slower as we approach the speed of the light,and apparently that means time travel is possible,but the problem is if any object tries to approach the speed of the light ,its mass gets increased (E=mC^2) for the apparent reason that we try to provide more and more energy to increase the objects speed and as E(energy) directly proportional to m(mass),mass gets increased and that reaches infinite as the object reaches the speed of the light,which is practically impossible.so we can't travel in time,this is what some our physicists say.

Its possible.. they say

anyways,theories are never been agreed so easily,there is always an other side and this is how it goes:there are some physicists who believe traveling faster than light(FTL) is possible and they say..

Quantum tunneling

Quantum Tunneling is the quantum mechanical effect that permits a particle to pass through a barrier when it does not have enough energy to do so classically. You can do a calculation of the time it takes a particle to tunnel through such a barrier. The answer you get can come out less than the time it takes light to cover the distance at speed c. Does this provide a means of FTL communication?
Ref: T. E. Hartman, J. Appl. Phys. 33, 3427 (1962).

Casimir Effect

The Casimir Effect describes the fact that a very small but measurable force exists between two uncharged conducting plates when they are very close together. It is due to the existence of vacuum energy. A surprising calculation by Scharnhorst suggests that photons travelling across the gap between the plates in the Casimir Effect must go faster than light by a very very small amount (at best 1 part in 10²⁴ for a 1 nanometre gap.) It has been suggested that in certain cosmological situations, such as in the vicinity of cosmic strings if they exist, the effect could be much more pronounced. However, further theoretical investigations have shown that, once again, there is no possibility of FTL communication using this effect.

Virtual Photons

In quantum field theory forces are mediated by "virtual particles". The Heisenberg Uncertainty Principle allows these virtual particles to move faster than light

Cherenkov Effect

One way to go faster than light is to make the light slow down! Light in vacuum travels at a speed that is an universal constant , but in a dense medium such as water or glass, light slows down to c/n where n is the refractive index of the medium (1.0003 for air, 1.4 for water) and c velocity of light. It is certainly possible for particles to travel through air or water at faster than the speed of light in the medium, and Cherenkov radiation is produced as a result.

there are many other theories and i will discuss them in my upcoming post...

Read more...

milkyway galaxy

The Milky Way Galaxy, commonly referred to as just the Milky Way, or sometimes simply as the Galaxy, is the galaxy in which the Solar System is located. The Milky Way is a barred spiral galaxy that is part of the Local Group of galaxies. It is one of billions of galaxies in the observable universe. Its name is a translation of the Latin Via Lactea, in turn translated from the Greek Γαλαξίας (Galaxias), referring to the pale band of light formed by stars in the galactic plane as seen from Earth (see etymology of galaxy).

Some sources hold that, strictly speaking, the term Milky Way should refer exclusively to the band of light that the galaxy forms in the night sky, while the galaxy should receive the full name Milky Way Galaxy, or alternatively the Galaxy.However, it is unclear how widespread this convention is, and the term Milky Way is routinely used in either context.

from:www.wikipedia.org

Read more...

Andromeda galaxy

The Andromeda Galaxy is a spiral galaxy approximately 2,500,000 light-years (1.58×1011 AU) away in the constellation Andromeda. It is also known as Messier 31, M31, or NGC 224, and is often referred to as the Great Andromeda Nebula in older texts. Andromeda is the nearest spiral galaxy to our own, the Milky Way, but not the closest galaxy overall. As it is visible as a faint smudge on a moonless night, it is one of the farthest objects visible to the naked eye, and can be seen even from urban areas with binoculars. It gets its name from the area of the sky in which it appears, the Andromeda constellation, which was named after the mythological princess Andromeda. Andromeda is the largest galaxy of the Local Group, which consists of the Andromeda Galaxy, the Milky Way Galaxy, the Triangulum Galaxy, and about 30 other smaller galaxies. Although the largest, Andromeda may not be the most massive, as recent findings suggest that the Milky Way contains more dark matter and may be the most massive in the grouping.The 2006 observations by the Spitzer Space Telescope revealed that M31 contains one trillion (1012) stars, more than the number of stars in our own galaxy, which is estimated to be c. 200-400 billion.
While the 2006 estimates put the mass of the Milky Way to be ~80% of the mass of Andromeda, which is estimated to be 7.1 × 1011 solar masses,a 2009 study concluded that Andromeda and the Milky Way are about equal in mass.
At an apparent magnitude of 3.4, the Andromeda Galaxy is notable for being one of the brightest Messier objects,making it easily visible to the naked eye even when viewed from areas with moderate light pollution. Although it appears more than six times as wide as the full Moon when photographed through a larger telescope, only the brighter central region is visible to the naked eye or when viewed using a binoculars or a small telescope.

from:www.wikipedia.org

Read more...

grand unified theory

According to many physicists, the primary goal of physics today is the grand unified theory. it is supposed to describe the four forces as different aspects of a same force.
the four forces, gravity, electromagnetic force, strong nuclear force, weak nuclear force have to be established as single form at some point(energy level) that get branched later on in the evolution process(cooling of earth) after big bang
scientists,indeed,successfully combined three of the forces other than gravity.the first two forces that got unified were electromagnetic force and weak nuclear force in the year 1967 by Abdus Salam and Steven Weinberg.

They suggested that there were other massive particles along with photon(EM force carrier) having same spin,that carry weak nuclear force, collectively called as massive vector bosons(W+,W-,Z0), and the way they got divided is explained by a property called spontaneous symmetry breaking,which means that,what ever appear to be a number of completely different particles at low energies are in fact found to be all the same type of particle,only in different states.all these particles behaves similarly at higher energies(around 100's of Gev) and the symmetry get broken at lower particle energies to form massive W+,W- and Z0 along with photons.

later it was found that the strong nuclear force which was carried by gluons get weaker at higher energies making quarks and gluons act freely.
It creates a new hope,that there must be some energy level where gluons, photons and bosons all behave the same & they predicted that it must be around thousand million million Gev and it can't be proved as there are no such oscillators till date.
they also predicted that quarks and electrons would behave the same at that grand unified energy level.

Now the process of unifying gravity along with the other three is going on...

hope they will find answers soon.
check this video

Read more...

four fundamental forces

The four fundamental force of universe are
1.gravitational force
2.electromagnetic force
3.strong nuclear force
4.weak nuclear force

these four forces are carried by their respective particles as listed below
gravitational force by gravitons
electromagnetic force by photons
strong nuclear force by gluons
weak nuclear force by bosons

out of the four forces gravitational force is considered the weakest, and the strong nuclear force which is carried by gluons is considered the strongest.

Gravitational force

Gravitational force, the weakest of the four forces, is about 10^-36 times the strength of the strong nuclear force.The messenger particle of gravitational force is the graviton. It has not been experimentally verified, mainly because it is extremely hard to find the smallest denomination of the weakest force. Recent calculations show that it will likely be massless.

Gravitational force is always attractive and that's what hold our universe together.

And somehow scientists are trying to include this in to a grand unified theory, where they successfully included the other three ..

Electromagnetism

Its strength is a bit less than strong nuclear force, and unlike gravitational force, it has both attractive and repulsive nature and is of infinite range--like gravity.

If gravitational force is what responsible for keeping up our universe together, EM is responsible for keeping up electrons around nucleus(attraction force between nucleus and electrons).

It is the force that causes the interaction between electrically charged particles; the areas in which this happens are called EM fields, also known as B fields in physics classes.

The particle that carry electromagnetism is the photon, a massless particle that travels at a speed of 299 792 458 m/s or 299 972 km/s .

The Weak Nuclear Force

The weak nuclear force is one of the less familiar fundamental forces. It operates only on the extremely short distance scales found in an atomic nucleus. The weak force is responsible for radioactive decay. In actuality, it is stronger than electromagnetism, but its messenger particles (W and Z bosons) are so massive and sluggish that they do not faithfully transmit its intrinsic strength.

The Strong Nuclear Force

Like the weak force, its range is limited to subatomic distances. quarks which forms the protons and neutrons stick together through this force. this fprce is carried by gluons and is a massless particle, as it glues the quarks together,its called a gluon.gluons also acts on other glons and that is why, as the distance increases the force increases at subatomic level .

Attempts have been going on to unify all these four fundamental forces to form a grand unified theory, and had successfully unified the other three, excluding gravity. Hope they will succeed soon.

Read more...