Science

Wednesday, December 5, 2018

Saturday, September 15, 2018

Thermal radiation is one kind of electromagnetic radiation that produce from thermal motion of atoms charged particles. Infrared light and visible light is the most common example of thermal radiation which is emited by incandanscent bulb.

Infrared radiation is also emited by animals. The radiation emited by animals is detected by infrared camera.

Thermal radiation is different from thermal convection and thermal conduction. Near of a fire a people radiates infrared light even if surrounding him is very cold.

Sunlight is a part of thermal radiation, though it is also considered as electromagnetic radiation. Thermal radiation of sun produces by the plasma of sun.

Friday, September 14, 2018

Mass

Mass is a phenomenon that indicates the inertial properties of matter which determines the weight of the objects and how energy is concentrated into matter.

According to mass energy transformation equation by Albert Einstein energy is the transformed form of mass. From a little amount of mass huge amount of energy is releases.

Weight is different from mass. Weight is the product of mass and gravitational constant. Hence, the more mass indicates weight more.

Weight is a force by which Objects feels attraction by earth.

Sunday, July 15, 2018

Electromagnetism

Electromagnetism is a brunch of physics that study on the electromagnetic force. Electromagnetism is one of the fundamental interaction in universe that occurs between two electrically charged field. It exhibits electromagnetic field. these electromagnetic field is electric field, magnetic field and light. Except, electromagnetic force other three fundamental force in universe is strong force, weak force and gravitation.

Friday, July 13, 2018

Big Bang nucleusynthesis

Big Bang nucleosynthesis is a process of production of nuclei in the primordial time of the starting of universe so called Big Bang. So it is also called primordial nucleosynthesis.

At the innitial state of universe there have no any matter in universe. It is believed that the first nucleus of the universe is formed at the innitial state of big bang.

read more physics article

Read Hawking radiation in link http://zipansion.com/2D5uI

Read Relativistic quantum mechanics in http://zipansion.com/2D6mm

Read special theory of relativity in http://zipansion.com/2D5jP

Read Higgs Boson particles in http://zipansion.com/2BqVp

Standard model

Standard model in particle physics is a theory to explain the fundamental force in universe. Standard model can explain three of the fundamental force. These three fundamental forces are electromagnetic force, strong force and weak force. The limitation of standard model is that it can not explain gravitational force.

The experimental evidence of existing of quark is the great evidence and authenticity of standard model. Another strength of standard model is the existence of top quark, tau nutrino and Higgs Boson particles

Standard model have great success of explaining the fundamental interaction. But yet, it have some limitation. Due to these limitation standard model can not be a full and complete theory of fundamental interaction.

Standard model can not explain baryon asymmetry. Einsteins general theory of relativity describes an important phenomena so called theory of gravitation. Standard model not only fails to explain baryon asymmetry but also do not incorporate the theory of gravitation. In standard model no content of dark matter exists. It can not explain neutrino oscillation.

Though, Standard model have a wide range of limitation, it is the theoretical paradigm of quantum field theory that exhibits Symmerty breakdown and anomalies.

Thursday, July 12, 2018

Quasiparticles

Quasiparticles are mostly described in condensed matter physics, treats as particles that does not consists with matter. Its a disturbance in a medium that exactly behave like particle but in really it is not composed with matter. The analogy of Quasiparticles may be given as the bubble is a glass of beer, that is exactly not an object rather a phenomenon. This phenomenon is nothing but a displacement of the volume of liquid by carbon di oxide gas. Due to the role of determining the properties of matter, quasiparticles are widely described in solid state physics and nuclear physics.

There have some specific types of Quasiparticles. These are phonon, magnon, polaron and exciton.

Let us give an example of quasiparticles is electron quasiparticles. When electron moves through a semiconductor the motion of electron is distributed in a complex way due to several interaction among other particles and nuclei. Electron behave like different mass which is called effective mass. The electron is called electron quasiparticles.

Particles in standard model quasiparticles is not exactly found. Basically, it is neither a real nor theoretical particles. True is that it is a sort of particle.

Solid is basically made up of electron proton and nutron. In quasiparticle these are not each of these but an emergant phenomenon that occurs inside the solid.

Tuesday, July 10, 2018

Quantum field theory

Quantum Field Theory is one of the most popular topics in theoretical physics. Shortly it is called QFT. It is a theoretical framework to construct quantum mechanical model for subatomic particles and quasiparticles. In particle physics QFT have a role of giving quantum mechanical model of subatomic particles. But it also give a model of quasiparticles in condensed matter physics.

The superiority of quantum field theory is that it combines special theory of relativity, quantum mechanics and Newtonian classical mechanics.

Quantum field theory treat particle as the excited state of underlying field. Quantum electrodynamics is one of the successful result of Quantum field theory.

Theory of Everything

Theory of everything is a theorem of physics that yet not discovered and it is predicted theory that will be able to explain all of the fundamental theorem in physics.

It is also called grand unified theory

Monday, July 9, 2018

Quantum Mechanics

Quantum Mechanics

Quantum mechanics is the study of motion of lighter particles. Before establishment of quantum mechanics, Newtonian classical mechanics was only the basis of explaining the motion of object. But classical mechanics is only effective for massive elements. It can not explain the motion of lighter particles.