21.39

Lunar Eclipse


Diagram of a lunar eclipse: Earth's shadow covered the moon
Lunar eclipse occurs when part or whole cross-section covered by the shadow of the moon earth

Lunar eclipse occurs when part or the whole cross-section covered by the shadow of the moon the earth. That happens when the earth is between the sun and the moon on a same straight line, so that sunlight can not reach the moon because it is blocked by the earth.
In
another explanation, a lunar eclipse when the moon appeared was in opposition with the sun. But because the slope of the field of the moon's orbit to the plane of Ecliptic, it is not any opposition in the sun will result in a lunar eclipse. The intersection of the orbit of the moon with the Ecliptic field will bring up the point of intersection 2 pieces called nodes, that is the point where the moon cut Ecliptic field. This lunar eclipse will occur when the moon is in opposition to the node. The moon takes 29.53 days to move from one point of opposition to the other opposition point. It should, if there is a lunar eclipse, will be followed by a solar eclipse because the two nodes are located on the line connecting the sun to the earth.
In fact, on the occasion of lunar eclipse, the moon is often still visible. This is because there still exists a deflected sunlight to the moon by the earth's atmosphere. And most of the deflected beam has a red light spectrum. That is why at the time of a lunar eclipse, the moon will appear dark red can be copper, orange, or brown.
Lunar eclipse can be observed with the naked eye and is not dangerous at all.

The types of lunar eclipse
  • Eclipse-month total  --  At this eclipse, the moon will be right in the umbra region.
  • Eclipse the moon partially  --  At this eclipse, not all parts of the moon is blocked from the sun by the earth. While most other lunar. surface in the penumbra region. So that there is still some sunlight reaching the surface of the moon.
  • Eclipse moon penumbra  --   At this eclipse, all parts of the moon was in the penumbra. So that the moon can still be seen with the bleak colors.

Gallery


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01.53

Solar eclipse


Solar eclipse on March 29, 2006.
Solar eclipse occurs when the position of the moon lies between the Earth and sun, so cover part or all of the sunlight. Although smaller moon, moon shadow sunlight can protect completely because the moon is an average distance of 384,400 kilometers from Earth closer than the Sun, which has an average distance of 149,680,000 miles.
Solar eclipse can be divided into three types, namely: a total eclipse, eclipse part, and eclipses the ring. A solar eclipse is said to be a total eclipse when the peak eclipse, the sun disc completely covered by the Moon disk. At that time, the same month a large dish or plate larger than the Sun. The size of the sun disc and the disc itself Moon varies depending on the respective distance between the Earth-Moon and the Earth-Sun.
Solar eclipse occurs when the disc partially month (when the peak eclipse) only cover part of the disk of the Sun. At this eclipse, there is always a part of the Sun's disk are not covered by the Moon disk.
Ring eclipse occurs when the Moon disk (at the top of eclipse) only cover part of the disk of the Sun. This type of eclipse happens when the Moon disc size is smaller than the disk of the Sun. So that when the disc was in front of the Moon disc of the Sun, not the entire disc sun disk will be obscured by the Moon. Part sun disk that are not covered by the Moon disk, the disk surrounding the moon and looked like a glowing ring.
Solar eclipse can not last more than 7 minutes 40 seconds. When the eclipse of the sun, was forbidden to look at the Sun with the naked eye as this can permanently damage the eyes and cause blindness.
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01.36

Computer


Computer

With the advances in Information and Communication Technology today, the world no longer recognize boundaries, distance, time and space, for example now people can easily obtain various kinds of information that happens in this world without having to come into place. Even people can communicate with anyone in many parts of the world in this, by using a computer that is connected to the internet.
Talking about the sophistication of the development of Information and Communication Technology is not out of the computer technology itself. Computer consists of a series of electronic devices that work together, to function to handle a variety of jobs ranging from very simple to the extent that the work is very complicated.
Computer is a system consisting of three main components namely Hardware (hardware), software (software) and brainware (human device / user). The relationship between the three components can not be separated, in order to reach the computer functions as a high-tech products in handling various kinds of jobs. Hardware as the physical components of a computer system which consists of input devices, process, output and data storage media is a unity that besama work together, so it can function.
The three components in the system hardware, software and brainware will do to process the input data, processing (proccesing) and produce output in the form of products required information.
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01.27

Blogger Tips for Beginners

This time I will try to give some tips on blogging. I think friends are trying to replace the template with a nice template, Well now our job is to post as many articles to our blog. The more the better. Okay here are some tips on blogging ... or let us go .. blog ... :
  1. Choose the right theme for your blog, of course you would most like and that of course you have set when planning a blog. Where we have to write the blog title and description, well that's what I mean.
  2. A good blog is a specific theme / specific example of information technology, about herbal medicine, on the engineering for example. Not too many themes in one blog. Unless personal blog, wrote up what to write.
  3. Writing original articles of their own ideas, if you have no idea terpaksanya, yes copy paste, but the source emang must be written so as not to the manner by aselinya writer. Even better, give links to websites or blogs that are copied.
  4. Do not add accesories that are not useful, usually a beginner bloggers love to put up put up less Acesories useless, like a clock, calendar, funny animation, funny. Useful's just a little useful, yet in the computer also has a clock, calendar already exists, it only makes blogs so heavy when opened visitors. and this is what makes lazy visitors to come back.
  5. Follow adsense can google adsense adsense or Indonesia, too much. It's not a must, but our philosophy's "Time is Money". So why should we blogging for hours, many hours writing, but we did not get anything from our blog, you lose? Unless your blog intended only for fun.
Okay it was a little blogging tips in order to go ... blog ... hopefully useful for those of you who are still beginners. Who had advanced do not read it, like we wrote each other often visited.
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