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On some nights the sky is the best show in town. On this night, auroras ruled the sky, and the geomagnetic storm that created this colorful sky show originated from an increasingly active Sun. Surprisingly, since the approaching solar CME the day before had missed the Earth, it was not expected that this storm would create auroras. In the foreground, two happily surprised aurora hunters contemplate the amazing and rapidly changing sky. Regardless of forecasts, though, auroras were reported in the night skies of Earth not only in the far north, but as far south as New Mexico, USA. As captured in a wide-angle image above Saariselkä in northern Finnish Lapland, a bright aurora was visible with an unusually high degree of detail, range of colors, and breadth across the sky. The vivid yellow, green, red and purple auroral colors are caused by oxygen and nitrogen atoms high in Earth's atmosphere reacting to incoming electrons.

Would you like to see a total eclipse of the Sun? If so, do any friends or relatives live near the path of next April's eclipse? If yes again, then you might want to arrange a well-timed visit. Next April 8, the path of a total solar eclipse will cross North America from western Mexico to eastern Canada, entering the USA in southern Texas and exiting in northern Maine. All of North America will experience the least a partial solar eclipse. Featured here is a map of the path of totality. Many people who have seen a total solar eclipse tell stories about it for the rest of their lives. As a warmup, an annular solar eclipse will be visible later this year -- in mid-October.

What's that red ring in the sky? Lightning. The most commonly seen type of lightning involves flashes of bright white light between clouds. Over the past 50 years, though, other types of upper-atmospheric lightning have been confirmed, including red sprites and blue jets. Less well known and harder to photograph is a different type of upper atmospheric lightning known as ELVES. ELVES are thought to be created when an electromagnetic pulse shoots upward from charged clouds and impacts the ionosphere, causing nitrogen molecules to glow. The red ELVES ring pictured had a radius of about 350 km and was captured in late March about 100 kilometers above Ancona, Italy. Years of experience and ultra-fast photography were used to capture this ELVES -- which lasted only about 0.001 second.

The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy along with the galaxy's pinkish star-forming regions. Also known as M31, the spiral galaxy is a mere 2.5 million light-years away. NGC 206 is found right of center in this sharp and detailed close-up of the southwestern extent of Andromeda's disk. The bright, blue stars of NGC 206 indicate its youth. In fact, its youngest massive stars are less than 10 million years old. Much larger than the open or galactic clusters of young stars in the disk of our Milky Way galaxy, NGC 206 spans about 4,000 light-years. That's comparable in size to the giant stellar nurseries NGC 604 in nearby spiral M33 and the Tarantula Nebula in the Large Magellanic Cloud.

Why is Polaris called the North Star? First, Polaris is the nearest bright star toward the north spin axis of the Earth. Therefore, as the Earth turns, stars appear to revolve around Polaris, but Polaris itself always stays in the same northerly direction -- making it the North Star. Since no bright star is near the south spin axis of the Earth, there is currently no bright South Star. Thousands of years ago, Earth's spin axis pointed in a slightly different direction so that Vega was the North Star. Although Polaris is not the brightest star on the sky, it is easily located because it is nearly aligned with two stars in the cup of the Big Dipper. Polaris is near the center of the eight-degree wide featured image, a digital composite of hundreds of exposures that brings out faint gas and dust of the Integrated Flux Nebula (IFN) all over the frame as well as the globular star cluster NGC 188 on the far left. The surface of Cepheid Polaris slowly pulsates, causing the famous star to ...

INTRODUCTION The use of computer and related devices in our daily activities today has become very frequent. Most people use computer without even realizing it’s a computer as most people limit a computer to just a desktop or laptop, whereas most devices today are work based on the algorithm and structure of a computer. In general computers are made to solve human problems as everyday human problems arise that needs urgent and immediate solution. Some computers are designed to handle and solve different kinds of problems while others are designed to solve only one problem. DEFINITION A concrete definition of computer that can cover all the types of computers may be rare to find as computers are evolving and invading different areas and aspects of life. There are different definitions used to describe or define a computer by different authors due to different conditions and criteria. For the purpose of this guide to practical computer, a computer could be defined as an electronic devi...

INTRODUCTION The use of computer and related devices in our daily activities today has become very frequent. Most people use computer without even realizing it’s a computer as most people limit a computer to just a desktop or laptop, whereas most devices today are work based on the algorithm and structure of a computer. In general computers are made to solve human problems as everyday human problems arise that needs urgent and immediate solution. Some computers are designed to handle and solve different kinds of problems while others are designed to solve only one problem. DEFINITION A concrete definition of computer that can cover all the types of computers may be rare to find as computers are evolving and invading different areas and aspects of life. There are different definitions used to describe or define a computer by different authors due to different conditions and criteria. For the purpose of this guide to practical computer, a computer could be defined as an electronic devi...

INTRODUCTION TO PRACTICAL COMPUTER The use of computer and related devices in our daily activities today has become very frequent. Most people use computer without even realizing it’s a computer as most people limit a computer to just a desktop or laptop, whereas most devices today are work based on the algorithm and structure of a computer. In general computers are made to solve human problems as everyday human problems arise that needs urgent and immediate solution. Some computers are designed to handle and solve different kinds of problems while others are designed to solve only one problem. DEFINITION A concrete definition of computer that can cover all the types of computers may be rare to find as computers are evolving and invading different areas and aspects of life. There are different definitions used to describe or define a computer by different authors due to different conditions and criteria. For the purpose of this guide to practical computer, a computer could be define...

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  LEARN HOW TO OPERATE THE COMPUTER The use of computer system in our every day life has slowly grown to be inevitable ranging from phone calls to complex operations such as surfing the internet, mobile banking, video and picture editing amongst many. This is limited to the simple phone everyone has and uses on a daily. Due to this same great change in technology our mobile phones have been built to carry out very complex tax that we may not really know and understand their full potential.   It is to this effect that the need for one to learn at least basic computer is now made mandatory. All who are prepared and willing to see the future must learn the use of these simple tools as to help them survive the nearest decade. Prior to this date, UTME was done PPT(Paper Pencil Test) along the line, CBT(Computer Based Test) was introduced and now its the only way to write the said exam. Same goes for most Jobs today, ICT knowledge is needed in almost every office before employm...

 CAR COMPANIES AND THEIR LOGOS  Vehicle manufacturers have always needed a way to instantly differentiate their products from rivals. While some simply settle for writing just their brand names, the majority of them option for a logo instead, with a meaning behind them which isn’t entirely obvious. Even though most of us can easily recognize the majority of these car logos and badges existing today, very few actually know the meaning behind these car logos and badges. So, in this article, we'll be looking at some of these car logos and the hidden meanings behind them. 1)  Mercedes-Benz Mercedes-Benz has used its three-pointed star logo for years. According to the Daimler company, it represents the car maker’s drive towards universal motorization with its engines dominating the land, air and sea. Well, indeed, the Mercedes-Benz logo is a symbol for the company’s plan for world domination. 2)  BMW The name is an initialism for the German meaning  B avarian...