Wednesday, April 18, 2012

Why do power lines buzz?

            Most of the time while roaming around Bangalore I do remember a funky statement which I read in news paper article “people who spend half of their income in food/apparels and rest on to digest it” are so called Americans aka white color jobs. Now we Bangaloreans have gradually adopted it. So I have a hobby to go walk upon my dinner only if I felt it was heavy but not regularly. Cool breeze! It was really calm environment without any noise of honking. Especially walking on Bangalore fly over you could enjoy the night city view. I’m sure at least that moments we been open minded like having felt out of nest and imagine how differently our mundane in the city goes on and on…..
In that calm was able to hear some humming noise and it was from the high tension cable passed over there. What is that? Way back to school days physics class …. Discharge of electricity! Basically we're hearing corona discharge. The strong electric field at the surface of a high voltage power line conductor ionizes the nearby air and causes a partial breakdown of its dielectric strength. The audible noise we hear is caused by the local sound-pressure level changes due to the individual corona discharges that in turn occur as part of electron avalanches. During wet weather the noise level is much higher due to the presence of drops of water on the underside of the conductors. These weather drops break up and the departing portions cause discharges in the water-to-water gap.
The predominant frequency of the corona hum noise is double (100 Hz or 120 Hz) the commercial frequency.

Friday, April 13, 2012

Are people become stale OR just used to it?

I’d say the only common thing in the world that people can’t avoid is Internet. I’m sure most of us have felt this being offline and when some info wanted. I recently heard song from a movie “pancharangi” “..H/W S/W madve agi internetgu maklu agi…life istene..” though it’s hard to believe its fact in present generation. I agree how powerful it is! and also the best teacher as well,  meantime no doubt that we are becoming stale.
It was little boring day in office working on Web Analytics and just for change I was experiencing Search Engine Optimization and come across a fact……
In 2011 most visited websites and searched keywords in India are same "Google" & "Facebook". Though most visited, doesn’t it strange to believe “Why people are still searching and then accessing...? Exception is one more thing can’t remove, let me exclude first time visitors here. Also I have seen few how they dependable on/ make use of Google by typing url in search box and press enter key.

                                           'Internet SUCKS'

Wednesday, March 21, 2012

What does 5 RINGS in Olympic symbol represents?

Why 5 rings..? It was designed by Baron Pierre De Courbertin(founder of the modern Olympic Movement) in 1912 after he saw a similar design on an artifact from ancient Greece. The 5 rings of the Olympic symbol represent the 5 major continents of the world: Europe, Africa, Australasia, Americas and Asia.
Why those 5 colours..? All the countries of Earth flags contain at least one of the 5 colours of the rings (Blue, Black, Yellow, Red and Green).

Why those are interlinked..? The interlinking of the rings means that everyone no matter what nationality can take part.

At the end of each Olympic Games, the mayor of that host-city presents the flag to the mayor of the next host-city. It then rests at the town hall of the next host-city for four years until the Opening Ceremony of their Olympic Games.

Monday, March 5, 2012

Don’t you feel little COOL after sweat, though smelled badly?

Your body perspires, or sweats, to COOL itself off. It is also another way for your body to get rid of wastes. Each day, your body makes heat as it burns fuel or food, for energy. When this heat causes the temperature of your blood to rise, the cooling center of your brain goes to work.

First, your body slows down the burning of fuel. Then the blood vessels in your skin widen. This allows more blood to flow. More it flows, more the heat that is given off through the skin. At the same time, the sweat glands that are in your skin make more sweat. Sweat is made mostly of water and a bit of salt and waste. When sweat hits the skin, it begins to evaporate or change into a mist in the air. This evaporation process also helps to cool your body.

Who is Alfred Nobel?

                Most of us know that it’s an international awards bestowed in recognition of fields x y z  and what is the procedure to nominate and to pick one from each field of Scientific advances and Cultural. But very few know the reason behind it, after reading about the Alfred Nobel who sacrificed his enormous wealth to give it as a series of price with such a protocol of no boundaries of religion, nation, community or particular corner of the globe. I felt Alfred is kind hearted and really a great creature to mankind. One interesting fact is that, he was not alive to issue single prize composed of his only fortune.
                Alfred Nobel born in Stockholm, Sweden in 1833. At his 18th age, he went to US to learn Chemistry and later he involved in business with his brother Ludving Nobel. As years passed, unfortunately he had to return to Sweden after bankruptcy of their family biz. Then he dedicated himself to the study of explosives and invented the dynamite and held some 355 different patents, dynamite being the most famous.
                Alfred was a scientist, inventor, entrepreneur, author and pacifist. Though Alfred remained unmarried, his biographies note that he had at least three lovers. Alexandra first love, rejected his proposal. 2nd Bertha, his secretary, left him to marry previous lover. It’s believed that, she was the major influence in his decision to include a peace prize in his will. Bertha was awarded the 1905 Nobel Peace prize for her sincere peace activities. 3rd and longest-lasting with flower girl named Sofie Hess for around 18 years with many letters exchanged.  In 1985, Alfred wrote his last will leaving his wealth to establish Nobel Prize and died in Dec 1896.
Nobel Prize would be awarded on 10th of every December, anniversary of Alfred Nobel’s death. Peace prize is awarded in Osla, Norway (by Norwegion Nobel committee) and others in Stockholm, Sweden (Royal Swedish academy of Science). Each Laureate receives a gold medal (average of 175 grams), a diploma and a sum of money approximately 6crore rupees considering foundation’s income on previous year.
A maximum of three persons & two different works can be selected per award. Except peace prize, which can be awarded to institution, others can only be given to individuals. It’s not compulsory to issue award in all fields every year and if not awarded in any field, the money is split among the rest.
There are few specially distinguished laureates, four have received prizes twice. (Maria Curie one each for Physics & Chemistry, Linus Pauling for Chemistry & Peace, Johhn Bardan twice in Physics & Frederick Smger, twice in Chemistry) and Curie family is the great one, who bagged 5 prizes (Maria Curie-2, her husband, Pierse -1, First daughter ,Irene Joliot-1 & second daughter, Henry Labousse). 

          Another very interesting fact is that, Gandhi didn’t award for his peace policy. But four people those who adopted his policy namely Nelson Mandela, Fredrik Willem, Aung San & Dhalailama awarded Nobel Peace prize.