Rajan khadka

  In this chapter, we will discuss how the Computer Multimedia works. If a system presents, some information through more than two media, it is known as multimedia. For example, TV presents audio and video; book presents text, image, and graphs, computer, etc. The information presented through multimedia has better quality and capability, as it can be understood easily. The advanced computer system is a great example of modern multimedia. Literal Meaning of Multimedia In this section, we will understand the literal meaning of multimedia. Multi  − it means more than one Medium  − it is singular and it means intermediary or mean Media  − it is plural and it means conveying the information Likewise, Multimedia is the field of Computer Science that integrates different forms of information and represents in the form of audio, video, and animation along with the traditional media, i.e., text, graphics/drawings, images, etc. Multimedia Computer System Multimedia computer s...

black-hole dot atom   A black hole is a region of space with such intense gravity that nothing, not even light, can escape. This is the general understanding of the black hole. If gravity is still a phenomenon, how can we come to use this statement as if it was a fact? This is misleading. Besides, it is preventing our young thinkers from even to consider exploring the true nature of gravity. One of the things that irritate me most is, when scientists quote gravity and build up all sorts of formulae and equations around it, when they well know that they have no scientific proof of what gravity really is! As an authority, the majority of scientists are unwilling to admit that all they really know is what they have acknowledged from their tutors – a centuries-old legacy of scientific beliefs some of which were later proven wrong. It is no secret to say that scientific research is sometimes corrupted due to conflict of interests or the lure of profits. Personally, I do not believe that...

 Electricity Current electricity is one of the important energy for the mankind. In our daily life we need it for different aspects. To avoid darkness at night we use electric lamps. To operate radio, T.V, telephone, computer or other electric appliances, we need current electricity. Similarly electric heater, electric iron, electric motor, etc depend on current electricity. Electricity is essential to run the factories, and various industries. Source of electricity Equipments which generate current electricity are said to be the electric sources. Electricity can be obtained by different means. Some of them are discussed below.  1. Cell  2. Photo cell  3. Dynamo and generators  1. Cell: By some specific chemical reaction current electricity is produced in the cells. For example, we have dry cells or simple cells. We get current electricity by the chemical reaction inside them. Dry cells are generally used to operate the tourch light, small transistors...

  No matter how far along you are in your sophistication as an amateur astronomer, there is always one fundamental moment that we all go back to. That is that very first moment that we went out where you could really see the cosmos well and you took in the night sky. For city dwellers, this is a revelation as profound as if we discovered aliens living among us. Most of us have no idea the vast panorama of lights that dot a clear night sky when there are no city lights to interfere with the view. Sure we all love the enhanced experience of studying the sky using binoculars and various sizes and powers of telescopes. But I bet you can remember as a child that very first time you saw the fully displayed clear night sky with all the amazing constellations, meters and comets moving about and an exposure of dots of light far to numerous to ever count. The best way to recapture the wonder of that moment is to go out in the country with a child of your own or one who has never had this exp...

  Blast off to space and help kids discover the atmosphere, planets, galaxies and other wonders in space. Kids will enjoy learning about planets and constellations and pretending to be astronauts as they look at pictures of the Earth from up above. The more visual images and videos parents and teachers can show kids, the more interested they’ll be. 1. Ology – American Museum of Natural History 2. Kids Discover – Space Science 3. Science Explorer 4. Kids Astronomy 5. Space Race 6. Amazing Space 7. NASA Kids Club 8. Space.com 9. NOVA – Space and Flight 10. Planet Quest

A team mapping radio waves in the universe has discovered something unusual that releases a giant burst of energy three times an hour, and it's unlike anything astronomers have seen before. A team mapping radio waves across the universe has discovered something unusual that releases huge bursts of energy three times an hour, and this is different from anything astronomers have seen before. The discovery team speculated that it may have been a neutron star or the broken cores of white dwarf stars अति ultra-powerful magnetic fields. Rotating in space, the strange object sends a ray of radiation that crosses the Earth's line of sight, and for every 20 minutes, it is one of the brightest radio sources in the sky. Curtin University node astronomer at the International Center for Radio Astronomy Research, Dr. Natasha Hurley-Walker led the search team. "It simply came to our notice then Slow transients like supernovae might appear over the course of a few days and disappear after...

              Heat as a source of energy 1          What is energy? Ans: Energy is the ability to do work 1.  What is source of energy? Ans: Source include natural gas, gasoline, coal and batteries etc form are called source of energy. Types of energy sources 1. What is renewable energy? Ans: source of energy those which are replaced after use them are called renewable energy. Hydro-Electricity, solar energy, energy from wind are the example of renewable energy. 2. What is Non-renewable energy? Ans: The source of energy are not replaced after their use called Non-renewable energy. Coal, petroleum and natural gas are an example of Non-renewable energy . Energy saving We use the energy for different purpose. But we do not care for keeping the sources for the future use. we know that non-renewable sources get depleted when they are often used 1. How to save the energy?   Turn off u...