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Monday, November 24, 2014

Physics Facts

Major branches of Physics

Acoustics
It is the study of production and properties of sound
Atomic Physics
It is the study of structure and properties of an atom.
Biophysics
It applies tools of physics to life processes
Cryogenics
It is the study of low-temperature
Electrodynamics
It is the analysis of relationship between electrostatic and magnetic fields.
Fluid Physics
It deals with movement of liquid and gases
Mechanics
It deals with behaviour of object and system to various forces.
Nuclear/Modem Physics
It is concerned with structure and properties of atomic nucleus and their reactions.

Famous Scientists And Their Contributions



Technologies
Scientific Principal(s)
Steam engine
Laws of thermodynamics
Nuclear reactor
Nuclear fission
Radio and television
Propagation of electromagnetic waves
Computers
Distal logic
Lasers
Light amplification by stimulated emission of radiation (population inversion)
Production of ultra-magnetic fields
Superconductivity
Rocket propulsion
Newton's law of motion
Electric generator
Farday's Laws of electromagnetic induction
Hydroelectric power
Conversion of gravitational potential energy into electric energy
Aeroplane
Bernoull's principle in fluid dynamics
Particle accelerator
Motion of charged articles in electromagnetic fields
Sonar
Reflection of ultrasonic waves

Four Fundamental Forces In Nature 

There are four fundamental forces in nature that govern the diverse phenomena of the macroscopic and microscopic world. These different type of forces are:
  • Gravitational force
  • Electromagnetic force
  • Strong nuclear force
  • Weak nuclear force
The unification of different forces/domains in nature is a basic quest in physics, the gravitational force is the force of mutual attraction between any two object's by virtue of their masses. It is a universal force. The electromagnetic force is the force between charged particles. The strong nuclear force is the force between protons and neutrons. The weak nuclear force appears only in certain nuclear processes such as beta-decay of nucleus.

Lessons to Learn from the Life of Mahatma Gandhi



Here are a few key lessons Gandhi left behind in the most significant life he led, for his country, his people and rest of the world.

Humanity and faith
Gandhi said: "Have faith in humanity. Humanity is like an ocean; if a few drops of the ocean are dirty, the whole ocean does not become dirty". His faith in the basic 'goodness' of people remained undeterred throughout his life, which remained largely in the midst of followers and opponents.

Be the change
While Gandhi turned an unlikely leader of something as massive as a freedom movement, it didn't happen overnight. He remained open to both sides of any argument and faced everything with a smile. No matter what the challenge was, his goal of 'Indian independence' remained clear. Like he said, "Be the change you want to see in the world." 

Preserving the self
Gandhi firmly believed he was in control of his emotions. His friends vouched for this quality of his. He ensured the goal was in sight. And that ego wouldn't rule the roost. He often said: "no one can hurt me without my permission".

Forgive
He had imbibed the best of Indian philosophy. Non-violence was his strongest weapon, and so was forgiveness. He told the world often that forgiving was the quality of the strong, and not the weak. "An eye for an eye makes the whole world blind" he said and liberated his fellow men from anger.

Practice what you preach
Advice is more easily available land or air today. Gandhi firmly believed actions speak louder than words. He remained in control of both his actions and words. "An ounce of practice is worth a thousand words" is what he lived by.

Now is all that you have
An English adage says 'cross the bridge when it comes'. Gandhi lived by the essence of 'today' and not what fate would befall on him tomorrow. With the goal clearly before him, he would often look at what could be done now, than later.

Never say Never
He was well aware of the possibilities and limitations of human beings. He said once "It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err."

Stay on; don't give up
Challenges often encouraged him to go that extra mile, put in that extra effort and reach further clarity on how things were to be executed for the goal to be reached. Self-doubt often made him stronger and he came back renewed, rejuvenated and with bigger dreams than before for the country. "First they ignore you, then they laugh at you, then they fight you, then you win".

Keep away the evil
Look for best qualities in people and grow with every person you meet. Gandhi was aware that he wasn't faultless himself. "I will not probe into the faults of others. I only look for goodness in them" he reiterated often.

Coherence in thought and action
Happiness is where there is no conflict within self about what is preached and followed. There are no different rules for self and the world. Happiness is when your thoughts, actions and words align - this was something that he firmly believed in all his life.

Computer Devices & their Inventors


=>Key board— Herman Hollerith first keypunch devices in 1930’s

=>Transistor— John Bardeen, Walter Brattain & Wiliam Shockley ( 1947-48)

=>Integrated Circuit— Jack Kilby & Robert Noyce( 1958)

=>Trackball— Tom Cranston and Fred Longstaff (1952)

=>Computer Mouse — Douglas Engelbart (1964)

=>Microprocessor – Intel 4004 Computer

=>Microprocessor— Faggin, Hoff & Mazor (1971)

=>Floppy Disk— Alan Shugart &IBM

=>RAM— An Wang at Harvard University’s Computation Lab and Jay Forrester at MIT.1951

=>Laser printer— Gary Starkweather at XEROX in 1969.

=>Hard Disk— The IBM Model 350 Disk File by IBM in 1956 (was the first hard disk drive and was part of the IBM 305 RAMAC computer that IBM started delivering in)

=>First PC— the IBM 5100 Portable Computer by IBM

=>First laptop— Grid Compass 1100 (called the GRiD) and was designed in 1979 by a British industrial designer, Bill Moggridge.

Air India Domestic LTC Fare List - 3rd November 2014


Journey by Air Travel while availing LTC, stipulating that the orders insisting to travel by Air India only.

Group ‘A’ and Group ‘B’ officers (Gazetted and Non-Gazetted) are entitled to travel by Air to NER on LTC. Other employees are entitled to travel by Air to NER from Guwahati or Kolkata airport only.

One more restriction of travel by Air India only need not apply to non-entitled employees who travel by air and claim LTC reimbursement by entitled class of rail.

An employee can avail LTC to visit NER by conversion of one block of home-town LTC. Reimbursement of the actual expenses on air travel while availing LTC, will be restricted to cost of travel by the economy class only.

To visit J&K by any Airlines subject to their entitlement being limited to LTC-80 Fares of Air India.
Employees who are entitled to travel by rail by 2nd AC class for availing LTC to Andaman & Nicobar Islands can travel by air.

Air India has now updated once again the fare list for LTC Scheme. The table for LTC Scheme has been classified in three columns such as, HLTC, DLTC and Airline Fuel Charge.

Click here to download the fare list

Updated Fares as on 3rd November 2014

These fares are subject to Change without prior notice

Click the link to view the complete list of LTC 80Scheme Air India Fare list Nov 2014


Whether 7th Pay Commission proposes to submit Interim Report?

Is Interim Relief Likely for Central Government Employees?

Is it really possible for Central Government employees to get an interim relief this time? Let us look at it in detail.

‘Interim Relief’ may be defined as the temporary relief given to employees before the new Pay Commission’s recommendations are implemented. ‘Interim relief will be treated sui generis’, most of the Finance Ministry orders included the sentence when sanctioning interim relief.

If one looks at the interim relief granted in 1983 and 1993, it can also be inferred that interim relief is granted in order to correct the errors in salary revision once every ten years. One gets the feeling as if an entire Pay Commission was lost simply for the sake of a small hike.

During the previous Pay Commission, particularly in 5th CPC, since 50% DA Merger was granted, there was no interim relief.

Here are some of the reasons why interim relief is normally granted :

* It has been granted a number of times before, in the past.
* DA Merger hasn’t been sanctioned this time
* Prices have touched the skies
* Some errors in the formulation of once-in-a-decade Pay Commission…etc.,


Reasons cited for the Government’s refusal to sanction DA Merger/interim relief:

* 7th Pay Commission was constituted at the justify time.
* There was no recommendation for DA Merger in the 6th Pay Commission
* There was a recommendation against DA merger in the 6th Pay Commission (the Commission is, therefore, not recommending merger of dearness allowance with basic pay at any stage).
* In the event that the Price Index is taken as 115.76 instead of 306.33 for the DA calculations.


All the Central Government Employees Unions and Federations are functioning with the intention of getting the DA merged with the basic pay. If that doesn’t happen, these federations are hoping that interim relief will be offered through the 7th Pay Commission’s interim report.

This is very much possible if Modi Government is willing to accept the demand.

And one more updation on this issue, Member of Parliament Shri.Shantaram Naik asked some questions about the 7th Pay Commission including submission of interim report as follows…

RAJYA SABHA
7th Pay Commission 230. SHRI SHANTARAM NAIK: Will the Minister of FINANCE be pleased to state:

(a) the details of meetings, the 7th Pay Commission has taken so far and the items/ issues discussed till date;

(b) the States, visited, by the Commission if any till date and the States which the Commission proposes to visit;

(c) whether the Commission proposes to take the views of the State Governments as regards their pay-scales since invariably, most of the States adopt the Central Pay Commission reports;

(d) whether Commission proposes to submit any interim report;

(e) whether the Commission proposes to make any recommendations to bring in financial transparency; and


(f) if so, the details thereof?

The written answers of above said questions will be available on or after 25th November 2014.

Source: 7thpaycommissionnews.in

From networking to farming, this Kerala boy has come a long way

"The mountains I climbed, the butterflies I counted, the streams I swam, the jungles I walked along, all called me back. The urge to go back to nature was very strong," says Tibin Parakal from Trissur who quit a lucrative engineering job in Delhi to start a restaurant but then ultimately became a farmer.


Tibin Parakal at their farm in Trissur
Educated youngsters show no interest in carrying on the farming tradition of their forefathers. But one 26-year-old chucked his job as a networking professional in Delhi to be a farmer in Kerala.
Moreover, he has chosen to farm without the use of pesticides.

Tibin Parakal's father was a farmer, but he discouraged his son from being one. So, Tibin studied Information Technology and networking, and worked as a networking professional in Delhi.

"From the cradle of nature, I was thrown into the concrete jungle that is Delhi. I felt suffocated. I didn't see human beings around me; only machines that worked to earn lots of money.

"The mountains I climbed, the butterflies I counted, the streams I swam, the jungles I walked along, all called me back. The urge to go back to nature was very strong," Tibin explained.

Still in Delhi, he began planning an organic restaurant he would start in Trissur on the lines of what his friend was doing in Trivandrum.

He hid his plans from his parents; he knew they would be horrified if their son quit a well paying job in Delhi to start a 'hotel' in Trissur.

He only discussed the viability of the idea with some of his friends. One of them, George K Jose, had just joined Infosys in Bangalore.

Tibin and two friends from Trissur, George and Aneesh, pooled in one lakh rupees to start an organic restaurant called Pathayam, in Trissur.


George K Jose at their farm in Trissur
The restaurant opened during Onam in 2010.

Recalls Tibin, "We employed only the cooks; serving and the rest of the work was done by the three of us and some of our friends."

They attracted excellent publicity in the media. At the evening opening they served five types of puttu like ragi, wheat, vegetable, corn etc, which went down well.

"Hundreds of people came and had to wait outside. It was unprecedented. Everybody appreciated our efforts. We were soon making Rs 10,000 every day with a profit of around Rs 5000-6000," Tibin said.
As expected, Tibin's parents were horrified at their son's decision.

Tibin tried to scare them by saying, 'If you want to see me alive till I am 60, let me do what I want to. But if I continue to work in Delhi, you will see me only till I am 35!'

The restaurant had to close because of construction work in the vicinity. Not able to find another place to suit their budget, the three entrepreneurs abandoned the project.

"I was not dejected. I had always wanted to be a farmer, and I thought it was a good opportunity to do it. We had started with organic food made without any chemicals but the first step should have been natural farming," Tibin said.

Tibin and George attended a five-day seminar on Zero Budget Natural Farming, by Subhash Palekar from Maharashtra.

"We were bowled over by Palekar's ideas. He understood the real vibrations of nature. In those five days, it was not farming that he taught us; he made us understand and feel the pulse of nature. He introduced us to the most minute living beings in nature. It was an eye opener for us," Tibin recalls.

Tibin's parents agreed to part with 10 cents of land (10 cents = 0.1 acre = 4356 square feet) to their 'crazy' son and his friend so that they could experiment with natural farming.

"My father was not in favour of our experiment. He asked me, 'Do you think we are fools? I have been cultivating paddy for the last several years and you say we don't know anything? Even with pesticides, our yield is only this much, and you want to show us that without pesticides, you can have more yield?'
"He literally laughed at us. I begged him for a small piece of land to do our experiment just once. Reluctantly, he agreed.

Zero budget natural farming needs only one kilo of cow dung for 10 cents of land. "We must have the cow dung and urine from pure breed cows and not cross breeds. With great difficulty, we found one person who had such cows and I went on my bike to collect the cow dung and urine," Tibin said.

Tibin had learnt from Palekar that one gram of cow dung and urine of pure bred cows contains 300-500 crore micro organisms. But the cow dung of the cross breed cows contains only 40-50 lakh micro organisms. "The Jeevamrutha solution (that is added to the crop) acts on the micro organisms and help them multiply in large numbers," he said.

They planted paddy using the seed of an ancient variety of rice called kuruvai, cultivated by adivasis. They tilled the land and did the planting themselves.

They used no pesticides, only the Jeevamrutha solution made of cow dung, cow's urine, jaggery, flour, soil and water, as created by Palekar.

The resultant paddy was much healthier, greener and bigger than the one cultivated by his father using chemical pesticides.

"Our paddy looked so healthy, and when the paddy of the nearby areas got infected, ours remained unaffected. That was when everybody realised there was something right in what we did. My father was shocked when we got more yield than he had ever got in his life!"

Most of the first yield was kept as seeds for the next season. "That was in 2011. We even distributed the seeds. You won't believe this, but today many people cultivate kuruvai in Kerala from the seeds we distributed.

"My father now cultivates kuruvai on his entire one acre plot and follows zero budget natural farming!" says a triumphant Tibin.

Fans of this type of rice are former Chief Minister of Kerala, V S Achuthanandan and actors Mammootty and Srinivasan.

Tibin and George have inspired the film actors to start farming and helped them out.
The paddy cultivation expanded to embrace two acres of land taken on lease and made a profit of Rs 50,000 the second year.

The success of the first two yields prompted them to expand their holding to 25 acres of land. The yield was worth more than Rs 15 lakh but faulty marketing resulted in a loss of Rs 7 lakh. That did not dampen their spirits because it was a marketing failure and not a farming one.

Since then, they have been making a profit of Rs 2 lakh every season.

Other than farming, they undertake projects for the Agriculture department, helping families develop a kitchen garden.

Tibin has decided to concentrate on cultivating organic vegetables on 15 acres of land at Kattappana in Idukki district. Some 100 kilos of vegetables are sold every day.

In due course, Tibin wants to develop a model farming institute to train youngsters in natural farming.


Tibin Parakal and George K Jose with their friends working in their farm

Tibin and George are indirectly involved in farming 400 acres of land, as advisers.

They continue to farm their 25 acres of land taken on lease. "Our life is dedicated to farming. We want others to do zero budget natural farming too. That is why we work as advisers.

"When actors like Mammootty start farming, we hope that it will inspire more people to engage in natural farming.

"We know we will survive as farmers. Our dream is to popularise Palekarji's natural farming for the betterment of nature, people and society as a whole," Tibin Parakal concludes.