Tuesday, April 27, 2010

How Heavy Is The Earth ?

How Heavy Is The Earth ?

Now despite science coming forward in leaps and bounds the simple question of how much the Earth weighs isn’t as straightforward as you might think. Certainly placing the earth onto a massive set of weighing scales isn’t an option. So how do we measure the total weight of the earth ?

Well scientists initially went about this task by trying to estimate the weight of a very large mountain and then simply scaling that figure up. However this method led to some peculiar results and since then the mathematics and calculations involved have changed taking into consideration further factors such as the volume and overall density of the planet.

If you combine the above with weighted samples of various parts of the planet scientists have come up with a more accurate number which they believe to be around 6 quadrillion kilograms. Mind boggling to say the least but if you think that’s a big number don’t forget to check out our article on the number Googol.

Wednesday, April 7, 2010

impotance of internet

After the WTC attacks, the Internet played a key role in keeping communication going, performing as an efficient and stable network for thousands of effected workers in lower Manhattan when desk phones and cell phones had failed.

Unlike a telephone call, which requires a direct circuit connection between two telephone sets, data sent over the Internet consists of discrete packets that can follow different channels in a sequence over time and rejoin at the final destination, in a process known as packet switching. For that reason, important information was able to flow around damaged or destroyed cables and telephone switching equipment.

Monday, April 5, 2010

Importants Of Newspaper

“Nulla nuova, buona nuova” meaning no news is good news is a famous Italian usage. It may be true in the ambience of too much news of disturbing nature pouring in from all directions all the time nolens volens. But, news is sine qua non for active life. None can ignore the milieu in which he lives. Only news keeps us in touch with the milieu in which we live. It gives us the insight to the dynamics that form the environment around us, it be in local or regional or national or international level. Keeping doors shut from news renders us deadwood and leads to isolation from the world around us and ultimately to atrophy.

The main conveyor of news is newspaper. Though there are many other sources of news like magazines and books in print media, radio and television channels and Internet connections in electronic media, words of mouth and telephone and wireless communications etc, no other source ever could come near the newspaper in importance. It is true of the past and the present and it is true of the future also. Neither the advent of the television nor that of the Internet could affect the importance of the newspaper. The reason for this is the width, breadth and the depth of the news provided by the newspaper, its low cost and the ease of providing the news at our leisure and comfort as many times as we desire.

Newspapers are very important in many ways. They give us lots of information about various matters at various levels that are not available anywhere. Though magazines and books also give lots of information, the scope of the news there is limited to a few selected topics. Televisions and internet connections while provide news faster than the newspapers, it cannot have the width, breadth and depth of the newspapers and do not provide the comfort of the repeated references at our leisure and comfort apart from harming our eyes because of the glare and being the source of health hazards because of radiations.

People of all profession need newspapers. Engineers, doctors, scientists, professors and other professionals need them to know the day-to-day developments in their respective fields. Businessmen need newspapers to keep in touch with the economic and commercial trends in the country and see current share prices. Politicians need them to read recent political events in the country. Others read newspapers to know how changes around them affect their life. Students read newspapers to broaden their knowledge and keep abreast of the recent developments in various fields, be it in politics, economics, science, sports or art and culture. Newspaper is an important tool of the learning process for students.

Advertisements in newspapers are also very informative and give lots of information about the world around us and recent trends apart from being very entertaining. The editorials and the articles in the editorial page of the newspapers are always very analytical and give insight to the news and their background. Reading newspapers is incomplete sans a glance to the editorials and the articles.

Reading newspapers everyday is must for both students and adults for growth and enlightenment irrespective of the class or field of their life. For, reading newspaper everyday is highly educational, and an important informal education in that. One can ignore this important function of the life at own peril.