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Why Does Fire Glow Brighter When we Blow Air?

There are many spectacular phenomena we see in our daily life. We just see it, know it, take it as a memory, as knowledge, practice it daily and still don’t know the actual reason behind it. We should try to know the actual science behind every phenomenon we see in our daily life. Not even a single moment of our life is out of science.

Well now let us discuss about the glowing fire which glows even brighter when we blow. Isn’t it strange? Every one of us knows that we take in oxygen and give out carbon dioxide.  We have been learning this since our childhood, may be since 1st or 2nd standard in our school. We take in oxygen for oxidation of food to release energy in the form of ATP (Adenine Triphosphate). Oxygen is required by each and every cell of our body for cellular respiration.

Oxygen reach to each of the cell in the form of oxy-hemoglobin complex and carbon dioxide is released from there in the form of carboxy-haemoglobin complex. Use of oxygen is not limited just for our body but also for ignition (burning). Without oxygen, fire is nearly impossible. Oxygen is good supporter of burning but not itself a combustible gas. On the other hand, carbon dioxide is neither combustible nor a supporter of combustion. It is a good fire extinguisher instead.

Whenever carbon dioxide is exposed to fire, it forms a blanket around the fire stopping the oxygen to reach to the fire to make it burn continuously. This is added up by the weight of carbon dioxide being more than that of oxygen and other atmospheric gases. It can hence extinguish the fire relentlessly. Now, the confusion can reach to the peak. We exhale carbon dioxide which is a good fire extinguisher. Despite this fact, the fire glows brighter when we blow. I do not recommend you to go and try it in case of a burning candle. It will surely go off. We all have at least once tried it in case of fire on logs or woods.

Let me now explain you the actual reason behind it. The pressure difference created by the blowing carbon dioxide near the fire plays the role. The blowing carbon dioxide having greater velocity than the atmospheric air causes to lower the pressure of air near the fire, given by Bernoulli’s theorem (pressure is inversely proportional to the velocity). This pressure difference causes nearby atmospheric air to rush towards the fire. As I have mentioned that oxygen is very good supporter of combustion, with such large amount of oxygen being rushed towards fire, it glows with significant brightness. Another question may arise in your mind, why we see using a hollow, narrow pipe to blow the air in fire? It is favored by Bernoulli’s theorem and equation of continuity followed by principle of conservation of mass.

When air enters through a narrow pipe, the area of cross-section decreases so that the velocity of air increases, given by the equation of continuity (area of cross-section is inversely proportional to the velocity). It can be observed better in case of liquid. As the velocity increases, the pressure decreases, given by the Bernoulli’s theorem. As there is smaller cross-section in a narrow pipe, there is greater velocity leading lower pressure. To balance the difference in pressure, there is greater chance of rushing of oxygen towards fire to make it glow brighter. This is the reason behind using hollow, narrow pipe for blowing the air in fire.


Then why doesn’t this work in case of candle? Actually, the burning candle does not have enough surface area of ignition to favor this phenomenon. When carbon dioxide blows towards candle, immediate blanket is formed which blocks the passage for oxygen within a moment to turn off the fire. However, in case of fire on wood or logs, the fire has greater surface area which cannot be easily covered by the amount of carbon dioxide we exhale from our tiny lungs. But of course, if we blow carbon dioxide in extent enough to form a blanket around the fire, then any sort of normal fire we use in our daily life can be extinguished. I personally recommend you to experimentally try this and conclude on your own for deeper and clearer idea about what I have just explained.
Discovered by Madhusudan Duwadi

Footprint of Lord Krishna in Kathmandu Valley

Kapurdhara is one of the busiest place of Kathmandu city.  It's a destination of several internal and external tourists due to its historical, social and geographical background. But it's rarely mentioned somewhere that this place carries the history of Lord Krishna's arrival in the valley. This place records footprint of Lord Krishna in Kathmandu.

Graving Blog
5 thousands years ago, the current area of Kapurdhara, Kathmandu lacked water for survival. Lord Krishna, who had come from India, shot with bow and arrow on the ground and then it brought white water from there. The water was as white as camphor {Kapur}. A tap {dhara} was also established there. So the place is called Kapurdhara which means a place where a tap having white water as camphor is found.
Discovered by Don Prince



9 Types of Words That You often Pronounce are Badly Incorrect

English is the international language of the world. It has brought all to the men into one single garland. Today the knowledge of English is a must to explore the world, maintain personality and lead a professional life. So interaction through English is common in our surroundings. But what happens to our intellectual level if we pronounce our words mistakenly? Have we ever thought on it?

Below are some of the common words I caught being mispronounced in my surroundings and they have been made correct here:

1. wednesday- adjective
‘d’ is silent.
2. practically-radically-enthusiastically
‘cally’ is pronounced as ‘kli’ not ‘kally’.
3. why-when-wheat-what
‘h’ is silent.
4. husband-Thursday
‘s’ is pronounced as ‘z’.
5. president-resident
‘si’ is  pronounced as ‘zi’.
6. account- alone -along -amount- arise- await- award- awake
‘a’ should not be pronounced as ‘e’.
7. business- darkness- kindness- helpfulness
‘ness’ is pronounced as ‘nas’.
8. hurtfully- helpfully- carefully 
‘fully’ is pronounced as ‘’faly’.
9. efficiently- sufficiently
ifisantly- safisantly

Some words are pronounced differently in British and American English. But the above written words are pronounced uniformly in both types of language.
Discovered by Don Prince

The Important Message of Yesterday's Earthquake

5.5 magnitude hit Nepal yesterday at 10:05 pm. There is a common question among people, i.e., Was that normal?

According to Nepal Seismological Centre, it was a usual aftershock of Gorkha Earthquake rocked in April 2015. However, it shook not only the rupture zone but also many other parts of Nepal as well as southern India.

Though this aftershock does not carry any message of threat at present, its epicentre 'Sindhupalchowk' gives a signal that this area is storing energy enough to trigger several such moderate aftershocks in future. Because this area has experienced many aftershocks with the size of 5 whereas other parts of the rupture zone are facing jolts with the size of around 4 only.

Moderate aftershocks are similar to the miner aftershocks except the fact that they can destroy already damaged infrastructures. They may also cause injuries to the people who run in panic during the quake.

People nearby the aftershock zone should be given special caution training. General earthquake education should be given to the public so that they do not have to sacrifice their sleep for no serious reason like yesterday.
Discovered by Don Prince

2 Secrets of India Earthquake That Scientists Did not Tell Us

This article is the second part of the article titled 'Is 8.2 Going to Hit India?'.

The Ministry of Home Affairs' {MHA} National Institute of Disaster Management {NIDM} has warned that the earthquake with the magnitude of 8.2 or greater is going to rock North India especially the mountains.

The experts have said that a series of earthquake of Manipur {India} in 2016,  Gorkha{Nepal} 2015 and Sikkim {India} 2011 have re-ruptured the already ruptured tectonic plates underneath the Himalayan region of India. Some international scientists even believe that recently rocked Manipur Earthquake is the sign that the stress has not been fully released which increased the chance of at least 4 earthquakes greater than 8 magnitude in the region.
Don
Don Prince
Factually speaking, the tectonic plates of Nepal, Bhutan, India and Myanmar are interconnected. Though scientists reserve their arguments, there are some underestimated truths that can give some hopes which I would like to say Secrets of India Earthquake in this article.

Here scientists are talking about an earthquake caused by another one. But is there any known mechanism that has caused an earthquake to trigger another one in another place? Obviously not. The past observation says that the earthquake can trigger stress only over some hundreds of miles not thousands because the crust is not so rigid to facilitate stress transfer over thousands of miles.

USGS scientists say there is evidence that some major earthquakes manage to trigger stress much greater distances like thousands of miles but these triggered quakes are small and very short lived.

Another thing seismologists often talk is the record of accumulated stress on the fault which is recorded through the satellite camera. But the hidden secret which public is always confused is that it is not possible to make a direct measurement of stress on the fault. What scientists can do is measuring the stress of fault with satellite camera and then developing a model by integrating the record with the history of previous earthquakes on the fault which will give a rough idea where future earthquake is likely to strike.

In conclusion, there is no mechanism developed so far which can predict earthquake with definite magnitude and time. The only one thing scientists can do so far is the long term prediction which is a rough estimation and that should not be misunderstood.
Discovered by Don Prince

Is 8.2 Going to Hit India? Part I

I was doubtful of the future when I heard Delhi vibrated last month. Was that the siren of a big disaster? On 6th January, I got a message from an Indian intellectual asking about the danger of earthquake because a story had been done in the previous night by Indian media. Thanks to him, I got online link to the India Times where I came to know that Indian Union Home Ministry's disaster management experts had warned that earthquake with a magnitude of 8.2 or greater is going to strike India. In the following day, I found translated version of this news in Nepali Media as this earthquake could somewhat affect Nepal too.















More mysteriously, I was considering predictions of an Indian personality for many years whose predictions were right many times. He claims that he had predicted Nepal earthquake too. On 7th January, he wrote in his time line:







He said in the comment section that he did not know the news about earthquake broadcast by media. Neither had I talked with him. So is it coincidence that three different corners gave same conclusion that there is danger of earthquake in India?

Coincidence does not end here.On 7th January, a student asked me a question, 'Ís India really going to face that big earthquake?'' I answered, ''If one more quake hits,,,.'' Say it just a coincidence or something else, it was predicted by that Indian guy too.

















You can be clear above, there was an earthquake in Pakistan and Afghanistan. I had  a query on my mind. Did that earthquake move any part of India? I got answer in media that the earthquake had vibrated Jambu Kasmir of India.

Then what is the conclusion? Is a big earthquake inevitable in India? If the earthquake is really going to hit, what are the scientific evidences? If it is a rumor or a false explanation, then what are the scientific logic to prove it wrong?
TO BE CONTINUED.....

Click Here to read part II of this article.
Discovered by Don Prince

How to Find Out the Local Time of Your Home?

You are running according to different time in your daily life. But is that the real time of your place you are going through? In context of Nepal the time difference from Mechi to Mahakali is nearly 32 minutes. The time of Nepal is determined according to the time of Gauri Shankar Himal. The time which you follow may not be real wherever you are staying. So, today I am going to present a practical way to find out the local time of any particular place.

First of all, let me remind you that it's obviously noon {12 o'clock at day} when the shadow formed by the sun is perpendicular to any of the object located in a particular area. It means we can keep any object in a place where we want to measure the local time. The straight line should be drawn facing ahead towards the sun. Let's name this straight line as mean line. The object through which we are going to calculate time should be pointed at its upwards and the top point should be the centre of that object. A regular shaped cone is recommended. The object should be kept perpendicular {at 90 degree} to that mean line. When the shadow produced from that object is perpendicular to the straight  line, it's 12 o'clock in that mean line. Just draw a straight line perpendicular to that mean line before keeping an object.


You can know your local time at your home or any other place after completion of this process. Now set your clock at 12 o'clock and the time goes running as the local time of your place. You can also calculate the time difference of your local time from the standard time of your country and you can find out your local time whenever you want by adding or subtracting the time difference you have obtained. Do it carefully because if shadow is misplaced by 1 degree, then there will be difference of 8 minutes. Happy experiment! Good night!
Discovered by Kapil Sharma