How does air conditioning work? How are we able to create a cooler temperature?

There are a number of ways to condition air as per your comfort in terms of temperature, pressure, humidity, and purity of the air you live in.

To achieve this objective, extra energy is required.

To keep their homes cool and comfortable, some animals derive this energy from Nature itself. They have been doing this since the beginning of this creation; they did not go to any school nor did they undergo any course in air conditioning. They had to do this to survive. Humans have also started to adapt this today.

While some people use natural methods for air conditioning, some use artificial methods. While some people detest spending any money for buying comfort, some people agree to put money for the comfort they get in return.

The artificial methods generally comprise of use of electricity driven man made machines which bring along cost of production, installation, maintenance and operation. By virtue of being a machine, it has its own limitations. Wear and tear, limited capacity, maintenance issues, to name a few.

The said orthodox machine works on a common vapour cycle system using a refrigerant. Eg., ammonia, freon, or others. Alternate cycles of compressing and expanding the refrigerant give the desired cooling. Here extra energy from outside is needed. Here half the input energy goes waste.

The same or somewhat better result can be obtained using natural means. Here no external input energy (electricity) is needed. Its a self contained system. Solar, wind, hydel and geothermal forms of energy come handy. Depending upon the resources available at the site, an optimum system is to be designed. With capacity not being a constraint, being environment friendly and having sufficient potential to be scaled up, the system gains a more favored status.

Cost of operations, thus, disappear in natural methods.

The natural method requires a set up to fulfill the purpose. The installation, lay out, pipe lines and other items become part of the building or the space to be air-conditioned. The underlying principles of its working are: differential temperatures create differential pressures which actually facilitate the air flow. Geothermal sinks absorb infinite amount of heat. Differences in source and sink temperatures have the capability to produce mechanical work - well within the realm of the 2nd law of thermodynamics. It is up to Man to understand, interpret and apply this naturally available feature to fulfill his own needs.

This does not consume electricity. Rather it has spare capacity. You may produce electricity, if you please.

Even when the outside temperature is above 40 deg C, the inside remains a cool 23 deg C. It becomes a matter of throwing out warm stale air and allowing fresh ambient air inside after passing it through a network of geothermal coolers.

Should I go for a job after class 12th? I really want to study, but my family is insisting that I find a job.

Do not refuse a job opportunity.


If you or your family are having financial problems, then you must earn first. It becomes a matter of survival.
There are a few relevant sayings which must always be kept in mind. Nobody can deny them, and everybody accepts it. The quotes are :

• No job is a mean job,

• Beggars are no choosers,

• A bird in the hand is worth two in the bush,

• One’s identity is one’s personality, not one’s degrees or the post one holds,

• Opportunity knocks at your door only once.

• Lady Luck may not smile on you every time

No job is a small job. Everybody has to struggle initially. A govt or a big company can not work without class 4 jobers. No police or military can command power without its jawans. Every shop needs salesmen to look after the counters. Today you may get a break as a courier delivery boy and you then thank your stars.
Most of the success stories are 'rags to riches' stories. One guy joined a bank after 12th as a clerk and later he became the general manager. Today, you may be a courier boy but later you might have your own courier company if you play your cards right. A group of working constables formed a security agency after gaining experience and quit their jobs. Nobody can gain without suffering pain. 6 out of every 10 waiters successfully run their own hotels later. Ask any shop owner in your neighborhood his past. You will come to know that either the present owner of the shop or his previous generation was a grass root worker a few years ago.
By all means go for the job. The more time you spend here, the more experience you gain. Your seniority, perks, etc. also increase. It is true that you won't get a high starting salary in a job after 12. Please note that you are a single 18 yo, your expenses are also less. Here you earn Rs 50 a day, while your friends at school spend Rs 500 a day. Later they all realize that it was useless.
Nowadays, your growth prospects in the job are not considered on the basis of your certificates. If you develop your skills, aptitude and crafts suitably, you become indispensable for the company.
Work is an education in itself. Whatever work you'll be doing, all those topics in english, hindi, physics, chemistry, biology, maths, history, geography, commerce, economics, philosophy, engineering, medical or law can be found in the work you do. It is up to you to interpret.
First earn and then learn. Education is to learn how to learn.
Today’s text books carry stories and achievements of people who themselves did not attend any school or were school drop-outs.
The guardians of our education system did not follow this, and the result is chaos all around.
The Bihar School Examination Board (BSEB) continues to be jolted with one embarrassment after another. One of its former chiefs is already in prison for his corrupt acts. Peons of the exam board sell thousands of candidates’ answer sheets to scrap dealers.
One candidate fought with great hardship a case in High Court to recheck her answer sheet. She had been declared failed but ended up in top 10. Throughout the case, the Board showed arrogance.
Recently, the Patna High court while noting the ''negligible behavior'' of the BSEB officials, imposed a fine of Rs 1 lakh on it for deliberately flunking Saurabh Kumar, a student of Class 12, in one subject in 2017. The board had to confess of a ''clerical error'' before the High Court during a hearing.
Saurabh got 32 marks in the Alternative English, but after he requested the board for a scrutiny of his answer sheet, he got 2 marks. Then he approached the Patna High Court for relief.
In June 2018, the Central Board of Secondary Education, CBSE, was found responsible for erroneous revaluation and gross carelessness. It miscalculated up to 55 marks in class 10 and 12 board papers. It toyed with the careers of the students causing great hard ships to them. Earlier in 2017 the CBSE had abolished the revaluation process, but had to reintroduce only because of Delhi High Court’s ruling.
There are a number of other similar victims. But, everyone can not fight like Saurabh.
Does such a CBSE or a BSEB deserve a candidate like you? 
Their own houses are not in order. All such exam boards are fast losing their credibility.
If you still feel like studying please remember that there is no school or college left which does anything useful for the society. More than 90% of engineering pass-outs are unemployable. A number of colleges have already been shut down. Half the seats remain vacant as there are no takers. The so-called researchers get away with fake research papers. It has been proved beyond suspicion that the education system in our country is a farce. As such, thinking about study at a school or obtaining a degree is just a waste of time, resource and energy.
Well, you can do both, if you really want. And that too at your terms. If you really have a passion to study then you can do distance education while at the job. You can enroll in a non-attending (dummy) school just for the sake of attendance.





Nowadays, as we all know it is very difficult to get a job. When a person gets a job, the first thing he does is he thanks his stars. He eventually got a break. Now, he can fulfill all his dreams.

Air Fare Now Becomes Cheaper Than Rail Fare

Air Fare Now Becomes Cheaper Than Rail Fare: An air ticket can be sometimes be cheaper than a rail ticket !
The erstwhile gap between rail and air fares is progressively being reduced.

In case of Rajdhani, only the first 10% of berths are at current prices. The rest 90% will be sold at prices starting at 10 per cent higher than the base fare and ending at 50% cent more for 2AC and 40% for 3AC. That is, the Rajdhani fare may become greater than the air fare! Low-priced air tickets that are seen are normally meant for very few seats while most of the seats are generally sold at higher rates as the journey date comes closer. This is what dynamic pricing is all about.
Travel times between Delhi and Patna -
By Train -
Normal Travel - 12 hrs by Rajdhani, and 13.5 hrs by Sampoorn Kranti. (Present Fastest Trains)
+ 0.5 hr minimum waiting time.
By Air -
Normal travel - 1.3 hrs
Reporting time - 2 hrs early
As part of reforms, despite an uproar over the move from the opposition, Indian Railways introduced dynamic pricing on premium trains.
Railways have later clarified that the model was introduced on an experimental basis and it will be reviewed it after some time.
The decision of Indian Railways to introduce dynamic pricing for select premium trains appears to be encouraging air travel.

As per AirAsia India CEO Amar Abrol, “While air travel on some routes are cheaper than train ticket, people are unaware of it. However, the dynamic pricing of train tickets would definitely help low cost airlines to get more passengers.”

Humsafar Fares should have been 20% Cheaper

Humsafar Fares should have been 20% Cheaper

Munger Ganga Bridge Brings More Connectivity

Munger Ganga Bridge Brings More Connectivity: New bridges over the Ganges in Bihar ease connectivity between North And South.
Manoj Sinha, Minister of state for Railways while flagging off the first train on the Munger Ganga bridge in April 2016 had said, “Better connectivity brings better progress and I am sure people will benefit from this.”
In April 2016, the train operated between Begusarai and Munger on the newly constructed road-rail bridge over the Ganga. Since then passenger trains between Jamalpur, Begusarai and Khagaria have been running on the bridge. This has indeed made things much easier for the residents of adjoining areas including Khagaria and Jamalpur, with a significant reduction of travel time.  It really fulfilled the long cherished desire of the people as it connects Khagaria and Begusarai with Munger divisional headquarters.
Begusarai and Munger are located on the opposite sides of the Ganga. Earlier, it used to take five to six hours to travel between the two cities, as one had to take a longer route covering 170 km. Similar was the case between Khagaria and Munger, being a minimum six-hour journey and a distance of nearly 140 km.
But the situation is different today. Begusarai to Munger now just takes 60-70 minutes while Khagaria to Munger is 30-40 minutes’ journey.
The bridge is about 3,190 metres long. NH-31 and state road would also be linked after completion of the road part of the bridge.
In September 2016, a long-distance express train from Bhagalpur is likely to coomence regular service on the newly-constructed Ganga rail bridge.
The present train Route between Muzaffarpur and Bhagalpur is longer by 23 km (11%).
We are waiting for the approval of the higher authorities. In the first phase, the Bhagalpur-Muzaffarpur Jan Sewa Express (13419 up and 12420 down) will make its maiden run on the Ganga bridge. Presently, the train originates from Bhagalpur and runs via Jamalpur, Kiul and Mokama crossing Rajendra Setu and Barauni, East Central Railway CPRO Arvind Rajak said on Saturday and added the step would reduce congestion on the rail tracks between Kiul and Mokama at least by 15%.