The universe : origin, theories, facts, physics and more

Earth's magnetic field ---

Earth's magnetic field also known as geomagnetic field , is the magnetic field that extends from earth's interior out into space where it interacts with solar winds, a stream of charged particles emanating from the sun.
Magnetic field generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the earth's outer core : these conventional currents are caused by heat escaping from the core of the earth, a natural process called geodynamo. The magnitude of the magnetic field of the earth at its surface ranges from 0.25 to 0.65 gauss. As approximation it is represented by a field of magnetic dipole currently tilted at an angle of about 11 degrees with respect to earth's rotational axis, as if there were an enormous bar magnets placed at that angle through the center of the earth. North geomagnetic pole actually represents South pole of the Earth's magnetic field, and conversely the South geomagnetic pole corresponds to the north pole of Earth's magnetic field (because unlike poles attract and like poles repel to each other such as magnetic compass needle, points towards the earth's south magnetic field i.e. the North geomagnetic field near the geographic pole.

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Electromagnetic radiation-

Electromagnetic radiation refers to waves (or their quanta, photon) of the electromagnetic field propagating through space that Carries radiant energy. It includes radio waves, microwaves, infrared, visible radiation, ultraviolet rays and gamma rays. It is the oscillation of electric and magnetic field creating electromagnetic effects propagating through space. In the space light travels with a constant speed that is speed of light 3×10^8 m/s commonly denoted as ( C ). In homogeneous isotropic media the oscillation of two fields are perpendicular to each other and perpendicular to the direction of energy and wave propagation, forming transverse wave. The wavefront of electromagnetic radiation emitted by the light source (such as a bulb) is a sphere. The position of the electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency or its wavelength.

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The galaxy---🌌🌌

The Galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust and dark matter. The word Galaxy was derived from the Greek letter (Galaxias) literally referring to milky or milky way. Galaxy is the vast collection of interstellar objects, celestial bodies swirling around a huge a black hole. Probably it's clear that there would be a huge black hole at the centre of the milkyway galaxy. The milkyway galaxy is the clear shape designed by a special force of the universe that is gravitational influence around the galaxy creates a shape called spiral galaxy. It's a clear view that we see spirally the milkyway is moving powered by the the black hole present at the centre of it. There are millions of stars, planets and other celestial stuffs exist in the milkyway galaxy. In each second there are millions of stars in the galaxy are dying and million of it is getting birthed every second. Also there is the dark matter that exists in the galaxy giving a particular shape. Everything in the galaxy is influenced by every other stuffs hanging in the frame of reference of the universe.

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The theory of relativity (Albert Einstein) --

The theory of relativity usually encompasses two interrelated theories the theory of general relativity and the theory of special relativity.

Special relativity applies to all physical phenomena in the absence of gravity.

General relativity explains the law of gravitation and relation to other forces of nature. It applies the cosmological and astrological realm , including astronomy. Both theories were discovered by Albert Einstein a great scientist of 20th century. He was a genius person who revolutionized the physics at that level where we can understand and actually modern technology is based upon these discoveries of Einstein. Albert Einstein was specialised in thinking of space and light theories because he was in the search of a unique answer that he observed the light radiation or the waves as they are. So he found mind blowing thing that is the theory of relativity explaining about space time and gravity influenced by matters.

The theory of relativity totally explains about how our space time behaves influenced by gravity. Space time curvature and disturbance due to mass is the noticeable sign of gravity. Gravity can easily be explained by the theory of relativity. Only observing two massive bodies hanging in the space and its curvature resulted by the mass. Fabric of spacetime is curved this means that mass has taken over. Due to Mass fabric of spacetime is curved resulting in attraction forces of nature that is gravity.

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The formation of the solar system-----

According to National aeronautics and space administration (NASA)
The formation of the solar system is the most important thing which is now a part of our curiousity that triggered the research to be followed. The solar system was formed about 4.5 billion years ago from a dense cloud of dusts and interstellar gases when nearby star exploded with the high intensive shock waves those waves triggered the formation of our solar system by collapsing interstellar gases and dusts to form spinning disk of materials called a solar nebula. Therefore our solar system was created.
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This picture says about the formation of a star. Formation of the star is very complex method it takes lot of time.
How do stars form?
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Formation of the star is usually happened or proceed when a giant star dies. When a giant star dies and scattering the dust particles and gases around then a gradual formation occurs. That gradual formation is the formation of the star by swirling gases and dusts around gravitationally come together and collapse. Gravitationally coming together makes a situation so called fusion between ionised particles that is hydrogen atoms start to fuse together to form a heavier element called helium (He)atom. Gradually go from various stages of formation taking a long time finally we see in each second in the milky way galaxy the thousands of stars are forming and blasting.

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As you can see here this is the image that is telling us the history of the universe. History of the universe is not a simple thing to explain it requires particular type of experiment based knowledge upon the topic. According to modern researchs the universe began around 14 billions years ago and firstly the universe began at this stage where there was nothing even no any single atom was existing. So from nothing it is hard to say that something happened early at that time. From nothing there is something that we see today. This is the science that explains lot of things hidden and left mysterious. Knowledge of science has brought us at that level where we can think. At the first stage when universe began the explosion resulted in inflation. Further universe expanded like a balloon and cooled to form dust,atoms and molecules that triggered the formation of complex celestial bodies that we see today. Galaxies, stars, planets and other celestial stuffs gradually formed as universe expanded within 14 billion years.

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This blog is conducted over the topic called expanding universe.
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Picture shows that the universe is expanding with a constant speed. There are lot of aspects for explaining the expanding universe. Scientists were struggling on this topic since many years and finally decided that expansion of the universe is usually due to acceleration that was made early in beginning times which means of Big Bang explosion. A Big Bang explosion triggered the universe to expand forever when it started, there was nothing but suddenly a inflation took over, dominated the matter and energy in the universe. Although universe has no centre it expands from elsewhere and going in one direction constantly expending like a balloon. It is observed first by the Hubble telescope when it observed something strange in the way of light frequency. Light frequency in the universe has given a lot of data to modern physics. Wavelength of light is getting longer which means the light travelling away from us or escaping away from us. And conversely when light Seems to come towards us the wavelength is getting shorter which means light turned into blue colour. And when wavelength is longer then it turned into red colour. And as the universe is expanding which means it has no limit but according to some theories the universe is expanding like a balloon and a time will come when the universe will stop expanding therefore balloon blasts and tends to contract likely to that universe will contract and start to collapse and finally explosion will take place like a big bang.

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❤️Blog is conducted over the topic called the Sun. For knowledge and better understanding please read this blog and follow me for more ❤️🙏😊❤️❤️.
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This is the picture of the Sun a star situated in the centre of the solar system it regulates the solar system in the way that all eight planets move around it. There are a lot of knowledge related to Sun is is sun's parts, composition (material from which the sun made of), and the distance from the earth. Sun is vital part of energy on earth 🌎 it regulates everything that sustained life on earth. Without Sun there is no such energy is imagined to be existed and simply would be no life without the sun 🌞. Sun affects the whole solar system by its gravitational pull and magnetic effects, also due to these things solar winds influence a lot to entire solar system. Solarwinds are the winds that can be imagined as a hurricane in a field that destroys things come in its path. Solarwinds also effects the planets and their magnetic fields forming Arora on a Northern and Southern hemisphere of the earth. The the greenish colourful beautiful view that we see in Northern and Southern hemisphere is actually the interaction of solarwinds with the magnetic field of the earth. So we can simply sell the solar winds are the winds that are made the sun activity all happening inside the sun. Basically due to magnetic field lines created on the surface of the Sun creates these solarwinds. The composition of sun-

The sun is composed of 25% helium, hydrogen 75% other gases are 0.5% in very small quantity.

Layer of Sun-
There are 6 layers of Sun-
1. Corona
2. Photosphere
3. Chromosphere
4. Convective zone
5. Radiative zone
6. Core
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This is the picture of a black hole the monster of the universe. It seems most bizarre thing ever encountered by scientists. Physics has achieved a lot of success in unlocking the mysteries of the universe one the most success ever felt is finding a black hole. In early 1970s the Mysterious thing came into observation that encountered a monster known for its Bizarre gravitational effect. It swallows everything that comes in its path. Even a black hole having a diameter of about USA country can swallow 10 times greater sized star than our sun🌞alone. This is because of huge gravitational effect. Mass is billions of times greater than our Sun possibly could wipeout our whole solar system including Earth. Life on earth would be impossible and human civilization will be fed by this monster when mistakenly black hole comes to us or near to us.

This is the picture of the Big Bang model. When the universe exploded around 14 billion years ago with a huge energy and matter dominated the universe. Scientists believe that very small speck of particle exploded in the the medium where there was nothing almost nothing then suddenly there was a huge explosion after that explosion energy spread in all directions. Creating the space and time that we live today. Actually the universe that we see is the result of that explosion which was created around 14 billion years ago. That makes sense the universe cooled down and created atoms and molecules that we are made up of ..... So gradually matter formed as planets stars and collections of stars planets called galaxies were made. Hence we can say that survival of us is due to explosion that small point. Inflated in all directions.