K. This is not about showing off. Its about sharing. I would like to talk about this theory called STRING THEORY.


To start off: I'll let you know that the universe we live in obeys the laws of the four forces of nature.


Gravity - you should know what it is

Electricity & Magnetism = Electromagnetism - you should know also.

The weak force - its a force that allows neutrons to change into protons releasing harmful radioactice rays

The strong force - the force that keeps protons and neutrons in an atom together. Unlocking this force is described by Einstein's very famous equation E = mc^2



All these forces are described by mathematical formulas that are really complex for Secondary students like us.


Physicists are trying to unify these 4 forces(in terms of mathematics) so as to form a 'master equation' that governs all the laws of nature.


But. There is a problem.

Let me introduce to you :

General relativity-

Its a theory that describes big things in the world like planets and stars and also the relationship between space and time. It suggests that the universe has a very orderly geometrical pattern.

Quantum mechanics-

This theory describes the world of sub-atomic particles like protons and neutrons. In the sub-atomic world, things are really disorderly and are totally different from general relativity.

In general relativity, the normal world we live in, we could describe the 4 forces properly. But in quantum mechanics, it describes the world of the very,very small.

Quantum mechanice could describe electromagnetism, the strong and the weak force well except Gravity. Why??

In general relativity, gravity keeps the planets and stars together in one place just like our solar system it also keeps our feet to the ground. BUT, in the world of Quantum mechanics, gravity is sooo weak that its almost not there.

This is where string theory comes in.

Let me tell you what it is.

String theory suggests that everything is made up of very,very,very tiny strings even smaller than sub-atomic particles.

In terms of mathematics, it could describe Gravity in the quantum level well.

So.. it is the key to unfying the 4 forces of nature.

Let me tell you much more about this theory:

11 dimensions - it suggests that we live in 11 spatial dimensions. 3 dimensions that we are used to. 1 dimension of time( u agree?). and 7 more curled up dimensions that are really small that we can't see it.

Parellel dimensions - we are living in parellel dimensions. and actually we are all living on a 'membrane'. This membrane thingy describes the Big Bang really well. Yea.

Ok. to prove this theory right : Those physicists built a really huge machine called a Large Hadron Collider.*( they are still building it right now. ) They are now trying to find the Gravity particle that is said to be able to travel from one dimension to the other. The main plan is to collide protons moving at almost the speed of light to unveil the inner particles. ( they found a zoo of sub-atomic particles already).

They have found particles for the other 3 forces already.

Electromagnetism - photon ( particle of light)

Weak force - donno. sry =))

Strong force - Gluons( comes from the word Glue - cos it glues the protons and neutrons together)

So... will they find the gravity particle????

10 years from now?

They say that if the gravity particle(graviton) shows up, it will immediately disappear - to the other dimension.

So, this opens up weird possibillities.

Like, communicating with beings from the next dimension through gravity particles.

Ok.

Hope this broadens your horizon.

May this exposure make you realise how weird the universe is.

Any factual error pls report.

I'll do amendments.

=)
=o)
xD

Labels: Hope it will broaden your horizon