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.

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.

The Aka airplane

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 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.

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.

Spreadsheet

Human beings have to keep the account of different subjects from the ancient times. Now 50 years ago, the paper pens were the main means of accounting and preservation. This work has become easier now in the era of science. It is now calculated through calculator. The computer was discovered only for calculation. It is now possible to do these work through various computer software. These software are spreadsheet software. The lexical meaning of spreadsheet is the spread of large-scale works. Software used to protect the financial accounts of the business organization. There are some popular software spreadsheet - Visicalc , Microsoft Excel , Open office Calc , Kspread. Microsoft Excel is used by everyone.

Optical fiber

Optical fiber is a very thin plastic glass fiber. Optical fiber is sent to the light signal. Electric signals are first turned into light signals. The light signal is sent through optical fiber. On the other side, light signals are converted into electrical signals, thus sending signals through optical fiber. A lot of signals are possible through optical fiber. Recently, optical fiber communication has been developed so that all the countries of the world are connected with optical fiber networks.

Modem

Most of the people use Modem. The modem of "modulator" and "Demodulator's" dem is composed of two parts. The modem term A modem is a network device that transmits the digital signals received from the computer and transmits it to the network. After transmitting signal from the network, converting the signal into the computer. Earlier, a low-speed dial modem was used . Currently using DSL( Digital subscribers line) modem.

What is Hub

We use hubs in our daily life. We know what is USB hub. Most of people use it. Usually hubs are used to connect many ICT devices, such as computers, printers, etc. in wired networks. Hub allows one device to communicate with other devices. We understand the hub or the internet hub or network hub. When data or data goes through the hub, hub can not read them. All computer connected to the computer by sending the information from one computer to another computer through the hub will batch those data or data. The use of the hub is reduced because of the low speed and high availability.

Outsourcing Website

As a result of the Internet development, there has been an opportunity for third world countries to work in other countries. Different organizations from different countries of the world are doing their own work, such as Website Development, Maintenance, Monthly Salary - etc. By the staff of other countries. It is called outsourcing. These works are available on many sites on the internet. Here are some popular sites: Upwork, Freelancer, Elance. People can earn money for their work. People need to have the ability of graphic design and other works. If people have this ability they can work and earn money from this website. So many people have succeed in this profession.

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.

How to save your eyes from the harmful blue light

Blue light is both good and bad for our eyes. Blue light that emits from the sun at day light is good for our eyes. But the blue light that comes from digital devices  are very harmful for the retina. Study shows that use of LED will be 90% by 2020. LED light contains 35% of blue light. If you are a windows user you can use a software to protect your eyes from blue light. The software name is f.lux.
But there is other option to save your eyes in windows 10.

Just find out the option in taskbar. In there select night light. This will save your eyes from the harmful blue light.

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.

The way to prevent theft of Facebook profile pictures

 

     
 Anyone can view the full version of the picture given on your Facebook profile and download it and use it for any blatant purpose. Experts have recently announced the profile picture protection strategies.Senate experts on technology website say, as much as you do not secure Facebook with a tight lock, you can not set your profile picture and cover image to private or just view it yourself. Whatever the reason for this policy of Facebook, it is believed, because its real reason is that this picture helps you to identify or identify your real account.The profile of the social network has  become part of the website now. But you can 'unlikable' the image of your profile thinking about privacy or privacy confidentiality. The image can not be found by clicking on the image. Your friend will not see the full version of the picture by clicking on it.The bad news is that Facebook has recently made some changes to their privacy settings, unbeknownst to many. It allows the user to always click on the original profile photo. That means, many people with unfamiliar friends can easily see the image of the profile. Earlier, strangers, who were not friends, had the chance to see profile pictures in 160 by 160 pixels so that the person in the photo could be understood. But with the size of the picture, there were fewer advantages utilized for any kind of punk. But now Facebook has the opportunity to see the full picture. However, Facebook has the precautionary guidance on some privacy issues. For example, if pictures can be 'only m', only strangers can see the image of the profile but will not be able to see the information related to the photo, comments or pictures related to the photo. If you want to keep your profile photo private, you can follow the steps below.Step 1: Change the profile picture Facebook recently added a cropping tool to update as a precautionary precaution tool. Previously the site's cropping tool did not actually crop your profile photo, just make a small version of the image. When the thumbnail was clicked, the whole picture could be seen. But now the cropping tool crushes your small image and big picture in two ways. If you use the cropped photo cropped with Facebook's old tool as a profile picture, then clicking on that image will see your whole picture that anyone can see. In this case, the solution is to delete the previous image and upload it again.Step 2: Use small pictures If you want to avoid high-resolution images spreading across the Internet, you can crop and resize before uploading. Crop the picture into a square using Photoshop or the Microsoft Paint imaging tool and resize it to 180 by 180. Online miscreants will not be able to use this small picture as a profile picture. When you upload this size photo on Facebook it will be a bit bigger than your profile photo. But by clicking on it, online miscreants will be disappointed.Step 3: Change personal privacy settings By default, all the profile photos you upload are open to the public. That is to say, if you change the current profile picture, then profit will not be profitable. Your old profile pictures can be taken by miscreants. To change profile pictures, go to EDIT each image separately. Click on the Privacy button to see who can see this picture, it will be set to 'only me'.

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.

How to speed up your computer (Windows)

             

If your computer is slow I will give you the solution of how to speed up. To speed up your computer follow below instruction:

• First press windows+R key to open run.
• After run has opened, type services.msc and open.
• After the file has opened find out superfetch,
• open superfetch by double clicking it.
• Stop it
• Disable it and press ok.

Now your computer will be little fast. how fast is your computer is depends on your RAM. If your RAM is enough your computer will be fast.

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.

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.

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.

The third most expensive film in the world

The third most expensive film in the world released on April 23, 2018, Avengers infinity war. The film's budget is about 300-400 million dollars The third costly film that was created so far. The image is based on Marvel comics. Since the release of the film, a lot of visitors have won the mind. Director of the film: Anthony Rosso, Joe Rosso. This is a superhero movie.The pictures will be very liked by those who like superhero movie. The pictures can be very favorable to those who do not like superhero movies.

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.