Space time, Uncategorized

QUANTUM GRAVITY (UNSOLVED FORCE)

# Currently gravity is based on “Albert Einstein’s general theory of relativity”  which is formulated with the Classical Physics.

# Quantum Gravity is generally used to describe the gravitational field and unite all forces in a single force.

# In Quantum Theory, it gives rise to a String Theory.

# String Theory however on the other side try to unify gravity with other fundamental forces such as quantum loop.

Quantum_gravity.

GUT (Grand Unified Theory)

# In above diagram, various fields have their won meaning but when come to end “Quantum Gravity” stuck the mind of everyone.

# Standard Model of Physics yet is unable to find the GUT ( Grand Unified Theory) and still facing a problem of “Gravitons” (that is 2-spin massless particles).

# In Kaluza-Klein Theory, five dimensional theory combined with the gravitation and electromagnetism as it generally appears in String Theory.

# There are many ways to define Quantum Gravity such as ‘”Quantum Loop Gravity”, “Time”, String Theory” , Nonrenormalizability of Gravity and many others ways.

# Quantum Gravity is no the end of the ultimate reality as this is still a smaller beginning.

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Space time, Uncategorized

WHY SPACE EXISTS?

# Space considers to be a three dimensional extent and that is boundless where objects and events are relative.

# Sir Issac Newton considered space as independent and is  permanent whether there was / is any matter into space.

# Space considers to be a three dimensional Cartesian coordinate system and is used to indicate positions in space.

# Natural Philosopher “Gottfried Leibniz” said that space is a collection of relation between objects and is given by their directions and distance from one another.

# In Non-Euclidean Space, space is considered to  be a curved rather than flat and even Albert Einstein’s “General Relativity” expressed space around the gravitational field and hence deviates Euclidean space.

# Philosopher Immanuel Kant developed his theory of knowledge in which space is both a priori and synthetic.

# Albert Einstein even considered space and time as a single entity and later know as “Spacetime”. In his theory, speed of light in vacuum is same for all observers.

# Carl Friedrich Gauss was the first to investigate geometrical structure of space and even Henri Poincare a physicist also have a futility to attempt to discovers which geometry applies to space by experiment.

# But what exactly space is, not a question but why it is, is a question that synthesis all entire forces?

 

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