Science Page


                                                               The largest galaxy

Galaxy is a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction. Galaxies are categorized according to their visual morphology as elliptical, spiral, or irregular. Many galaxies have black holes in their center. There are spiral galaxies, elliptical galaxies. irregular galaxies. There are may be billions of galaxies in the universe. The largest galaxy is IC 1101. IC 1101 is the single largest galaxy that has ever been found in the observable universe.

this galaxy extends about 2 million light-years from its core, and it has a mass of about 100 trillion stars. It is the largest galaxy ever found. 




                                                                   The big bang

The Big Bang theory is the prevailing cosmological model for the universe.  The Big Bang theory is an effort to explain what happened at the very beginning of our universe. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today. The model describes how the universe expanded from a very high-density and high-temperature state, and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure and Hubble's law. There are many misconceptions surrounding the Big Bang theory. For example, we tend to imagine a giant explosion. Another misconception is that we tend to image the singularity as a little fireball appearing somewhere in space.  The cosmic microwave background has been observed on many missions. One of the most famous space-faring missions was NASA's Cosmic Background Explorer  satellite, which mapped the sky in the 1990s. The known physical laws of nature can be used to calculate the characteristics of the universe in detail back in time to an initial state of extreme density and temperature. The universe is expanding. Every planet and other things are getting far from each other. It is the proof of universe is formed by big bang.









How big is the universe

The Universe is all of space and time. And their contents are, including planets, stars, galaxies, and all other forms of matter and energy. The size of the universe is still unknown. No one knows the actual size of the universe. It always will be a mystery how big the universe is. There are so many galaxies in the universe. We can't count all of them. Our solar system is a part of Milky way galaxy. Milky way galaxy is one of many galaxies in the universe. It is assumed that galaxies are distributed uniformly and the same in all directions, meaning that the Universe has neither an edge nor a center. The universe had a beginning and that is expanding.  As technology has evolved, astronomers are able to look back in time to the moments just after the Big Bang. But the size of the universe depends on a number of things, including its shape and expansion. The truth is, scientists can't put a number on it. So we can never know how big is the universe.







                                                                       The Moon

The Moon is the only  Natural satellite of Earth. It does not have its own light. Moon is the fifth largest natural satellite on our solar system. The Moon is an astronomical body that orbits planet Earth. The Moon is thought to have formed about 4.51 billion years ago. The Moon is after the sun as the second-brightest regularly visible celestial object in Earth's sky. Its surface is actually dark. Its gravitational influence produces the ocean tides, body tides, and the slight lengthening of the day. The Moon was first reached in 1959 by an unmanned spacecraft of the Soviet Union's Luna program. the first manned orbital mission by Apollo 8 in 1968. The first man who stepped in the Moon is Neil Armstrong.






                                                                   About our sun

The sun is the source of all life on Earth. The sun lies at the center of our solar system. The sun holds 99.8 percent of the solar system's mass. The sun is roughly 109 times the diameter of the Earth  about one million Earths could fit inside the sun. The suns mass is about 330,000 times that of Earth . The sun is the biggest in our solar system. It is by far the most important source of energy for life on Earth. Without sun there will be no life on Earth. The sun is roughly middle aged. About three quarters of the Sun's mass consists of hydrogen 73% the rest is  helium 25% with much smaller quantities of heavier elements, including oxygen, carbon, neon and iron.

What is galaxy?

A galaxy contains a huge amount of gas. There are billions of stars in galaxy.  Every galaxy has a supermassive black hole in its center.  We live on Earth.  A galaxy is held together by gravity. There are many galaxies. There are many kind of galaxies. There are spiral galaxies, elliptical galaxies, irregular galaxies. Our Earth is part of solar system. Our solar system is a small part of Milky way galaxy. Sometimes galaxies get too close and smash each other.


 The largest black hole

 What is black hole? So many people do not know what is black hole. Black hole is a region of space having a gravitational field. A black hole is a region of space exhibiting such strong gravitational effects that nothing such as light can escape from inside it. The gravity is so strong in a black hole.
The largest black holes are called supermassive. These black holes have masses that are more than 1 million suns together. The black hole or the black hole refers to the space in space, because of the strong gravity of which no object can come out, even the light. Every large galaxy contains a supermassive black hole at its center. Milky way galaxy has a black hole at its center. On December 5, 2011, astronomers discovered the largest supermassive black hole in the nearby universe, with a mass of2.1×1010 (21 billion) M at a distance of 336 million light-years away in the Coma Berenices constellation.



 The biggest and smallest planet  in our solar system

 There are many planet in our universe. We can't think how big is the universe. It is larger than we thought. There are many galaxies  in the universe. There are so many planets in the universe that can't be count. The largest planet in our solar system is Jupiter. And the smallest planet in our solar system is Mercury. Jupiter's mass is more than 300 times that of  Earth. Its diameter 140,000 km, that is more than Earth.  Mercury is the smallest planet. Its radius is 2440 km. Mercury's density at 5.427 g. So the biggest planet is Jupiter and the smallest planet is Mercury.



 Virtual reality

Virtual Reality is the mythological reality. Virtual Reality is a computer controlled system that allows people to interact with or interact with artificial three-dimensional sensory environments by applying modeling and simulation. The simulated environment in virtual reality can be exactly like the real world. Many times the simulated environment may be different from the real. For example, the virtual reality games. virtual users are completely submerged in a computer. Reality is perceived in virtual reality by wearing data gloves, etc., with different types of devices, data transmitters. Virtual reality is another world of imagination. In virtual reality everything seems like real.



 The universe may be the cornerstone of many mysteries

Imagine, two black holes circulating in each other in space. The mass of one is 35 times more than our sun, and another 30 times more. Prior to matching with each other, they used to rotate about a hundred times per second at incredible speed. Then their 'event horizons' or event horizons become united. Just like the two fibers of the golden foam, one can become one.In this way, a specialist explains how to create gravitational waves through two black hole clashes. The laser gravitational-wave observatory (LEGO) scientists have identified the gravitational waves. After a few decades of trying efforts, they got this success for the first time this year.The black hole or the black hole refers to the space in space, because of the strong gravity of which no object can come out, even the light.This incident of gravitational waves has stirred up the scientists. Many of them say the best inventions of the century. Scientists around the globe welcomed the event and said that it has made the opportunity to know the universe better. The discovery of the universe and the continuation of the universe, the mysteries of black holes and neutron stars may be revealed in the coming days. Professor BS Satyapakad of the University of Cardiff, UK, said, "We will hear the universe now, just look and not be limited to seeing it as before."LEGO Executive Director David Ritza and his colleagues compared it to the achievement of modern astronomy by astronomer Galileo's telescopes four centuries ago. Another major significance is that the conception of the cosmic collision and the creation of the wave from it was confirmed by algebraic scientist Albert Einstein, which was estimated 100 years ago.Gravitational waves are very different characteristics than electric magnetic waves. Until then, the researchers considered the universe with the idea of ​​electrical magnetic waves. They recognized the gravitational waves as they got new direction.The wave of gravitational waves that resulted from the collision of the two black holes away from the world 1 billion 300 billion light-years, its waves spread to space and reached our globe on the float on September 14 last year. The distance of one light and one thousand 86 thousand miles in a second, as far as one year, is the distance of a light year. The scientists of the legate identified the wave with the help of fine instruments placed underground. According to the US National Science Foundation, it took months to review the data collected by the scientists and reviewed by other researchers. The discovery of the breakthrough in Washington was officially announced on Thursday.




                                                                  Supergiant stars

You know, there are many stars and stars in this universe than our sun. These stars are far from our galaxy. Supervisor Star is the largest in the universe
Star They can be thousands of times larger than the sun, and a mass can be up to 100 times higher. The best known supergiant star, VY Canis Majoris, is 2,100 times the size of the sun.






                                                     Everest is not the highest mountain

It is astonishing to hear that the Himalayas are not the highest mountains of the world. Yes, there are higher mountains than the Himalayas. The highest peak of the Maunak mountain of Hawaii is the island of Hawaii. It is 33476 feet from its foot to the top, which is about 4 thousand feet more than the Himalayas. But it's under the sea. So the Himalayas rise from the plane.




                                                                   Benefits of dates

It is very important to eat dates every day. It is useful for heart problems .There is no comparison of date for energy supply. Delicious luxurious type of dates. Constipation is obtained from constipation through eating regular dates. By eating dates, abdominal cancer can be avoided. Soluble insecurity fiber and several amino acids that help digestion of food in date. Dates contains plenty of potassium and low sodium. So, we should have a habit of eating dates regularly. Habits of eating dates reduce the risk of high blood pressure. There are plenty of iron in date. Habits of eating dates reduce the level of sugar increase in just four weeks by improving the quality of lipids.




 Artificial satellites

Satellites revolve around the earth from space. Because of the gravity of the Earth, it turns around. So it does not cost any fuel to keep it in space. We know that the Earth revolves around its axis for twenty four hours. If the satellite is to turn the earth once in twenty-four hours, then it will seem from the Earth that it remains fixed in one place in the sky. Such satellites are Geo stationery satellites. Such satellites can not be kept at any height. There are two problems with satellites. A large antenna is needed to send a signal to the satellite. And the next problem is that the signal that is sent from the Earth is faster but it takes a little longer to exceed the distance. There is no other problem. 




 

 The Bullet train

The Bullet train is one of the high-speed train. The world is changing. Technology is improving. So train has become faster. The bullet train is a high-speed train service in japan. It started operation in 1964 on limited route. But at present, most major cities of japan come under the network. The bullet trains high-speed is 300km/h(186m/h). It plans to increase speed up to 320 km/h. Ina test run the speed was 581 km/h.




Plane

Human beings has discovered so many things that let us conquered the world. Human conquered the distance on earth by discovering wheels. But at present we can travel more faster by plane. The first ever plane were made by the wright brothers. They made the first experiment on flying in a plane. In the experiment a machine carried a man a rose above by its own power. It was the first plane made by the human. The machine was called "Aka airplane". At present planes travel faster than the sound. So the sky's limit now.




The fastest plane
Human has discovered plane. Human has conquered distance. Now human has built fastest plane.The Falcon hypersonic technology vechile-2 is the fastest plane ever built by the human. It fly faster than supersonic Concorde. It would withstand temperatures of almost 2,000 degree C. The US Defense agency will launch the Falcon HTV-2. First, they will set it on the back of a rocket. Then they will launch both into the space. After launching it into the space the will detach the plane. Then the plane Falcon will fly towards the earth. The Falcon was born in 2003. It was a part of a military project.




 Space
Space is the boundlessthree-dimensional extent in which objects and events have relative position and direction. From the perspective of an Earthling, outer space is a zone that occurs about 100 kilometers (60 miles) above the planet. There is no air. Further, space is a vacuum, meaning that sound cannot carry because molecules are not close enough together to transmit sound between them. Space is not empty. There are planets, stars, galaxies, black holes, in space. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime.