If black box in an Airplane is indestructible, then why don’t they make the whole plane of the same material?

black plane

The construction of the Digital Flight Data Recorder and Cockpit Voice Recorder boxes is military grade. And they are virtually indestructible.

But there have been many cases where the impact was so strong that even the black box couldn’t sustained damage. Still, why not built an airplane using the ‘strengthening’ concept, isn’t the stronger the better.?


NO ! since as its well known that, its not the fall that kills you, its the sudden stop.
An indestructible aircraft may survive that sudden stop but no human could.

Black boxes are placed in protected locations near the rear of the airplane and, unlike humans, they are designed to survive accelerations up to several hundred g-forces.

Passengers don’t die because the plane is not strong enough.
Passengers die because unlike black boxes, passengers’ bodies are not strong enough to survive the rapid deceleration, smoke and fire that ensue in a crash.

Along with carry-on bags, laptops, food trolleys etc some of which may hit you while traveling at speeds of several hundreds of kmph relative to your body.

Hence the best way of protecting airplane passengers is to avoid crashes in the first place. Task at which our technicians and engineers are getting better each day passing.

It is remarkable how the number of aircraft accident fatalities has not significantly increased in the past 50-60 years despite the fact that air-traffic has increased by a factor of a significant margin !

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Tips/hacks you wish you had known sooner


Below are the list of 14 tips (and hacks) one could employ to save time and money and life in some cases. Given points are just an accumulation, so use it at your own discretion.

1. Set you EMERGENCY contacts

Make all those numbers (for eg. whom you will call in case of credit/debit card lost), as favorites or speed dials. They may come in handy specially while commuting.

Also you must at least 2 of your contacts with whom you share an acquaintance with in your current city.

Since i am a bit memory short, I have a small paper note containing those 2 numbers, in my wallet and carry-bag at all times.

2. Masks with N95 or N99 filters

This life hack works specially in metro cities, where the pollution levels are always high. Usually when Diwali comes, the pollution is at the peak.

Here is a reason why you should use masks with N95 or N99 filters:

People often use dupattas, handkerchiefs and surgical masks but they only filter coarse dust particles or Particulate Matter (PM) 10, which is anyway not harmful. It’s PM 2.5, which is harmful, that they cannot filer. You need N95 or N99 filters for those situations.

More details: A-special-mask-that-helps-you-breathe-easy-in-delhi/


3. Write down WRONG PIN of your ATM, on ATM cover

So that if you lost your ATM card and thief tries to enter that number three times, normal ATMs will eat that card after 3 wrong attempts or at least block it, and your money will be safe.


4. Always carry some money UNDER your mobile phone’s cover

It has been proven beneficial for me every month. Many times, you forgot your wallet in a hurry (like I tend to forget when I try a different trouser at work). And what if those are the emergency/crucial times. So better prepared than sorry.

mobile money

5. Always have your ADDRESS (current) card in your wallet

So that even if you lost it at while roaming somewhere at tourist places, you have some chance to get it back via some good soul.


6For those who have BABIES

Wear your door key on a neck chain all the times in case you accidentally lock yourself out (while throwing out the garbage etc) and the baby’s inside the home alone.

Get an aluminium duplicate key because regular ones tend to soil and mark your skin.


7. You can SAVE YOURSELF from getting unknowingly looted at Indian petrol stations

Always ask for some odd number of liters of fuel at Petrol station.

If you fill fuel worth of round digit figures, like most of the people do, example Rs 50 or 100 or 200 or 500, you will actually get fuel little less than what the amount is for.

For example, If you fill worth Rs 200, you will get only petrol worth of Rs 185 or so, which you can’t see because the pump shows Rs 200. This is how they loot thousands of rupees from all the customers all round the clock. So next time go for Rs. 503 or 507 if you want fuel worth Rs 500.


8. Always shower BEFORE swimming

If you are living in a place where the temperature usually goes above 40’c, not showering before diving into the pool can cause a fatal heart attack. This is due to the sudden lowering in body temperature, and an abrupt increase in the heart rate and blood pressure.


9. How to check for HOAX messages instantly

You all must be receiving a lots of hoax messages in Whatsapp in groups or forwarded by your friends. And some of you (not all) may forward that hoax without finding whether it is a real or fake news.

Even for finding it, you will search few keywords of that messages into search engines. But there’s an easy way to find whether it is real or fake.

Just save this number:

+91 9035067726 This is contact number of Check4Spams who reply you whether the message you sent to them is real or fake.


10. Secure your FOOTWEARS at temples/religious place.

The quick hack to the problem is to never put your footwear together and if possible, turn one of them upside down.

This drastically reduces the chances of your good looking footwear catching a thief’s eye. Thieves normally just pick up the ones that are kept together and look good at first glance before escaping the venue quickly.


11. ‘Rescuer’ app to the rescue

Whether it’s a rape or a kidnapping situation, or even a heart attack, an app called Rescuer can save your life.

With this app, you can silently call for help by pressing your phone’s volume buttons in a secret pattern.

Say your customized key phrase, and Rescuer will hear it and immediately send out emergency messages (+ GPS coordinates) to pre-set emergency contacts.

You can open you can press the giant red help button on your home screen and emergency messages will be sent immediately and many more life saving features.


12. Perform bank transactions using your mobile WITHOUT INTERNET

Wish that checking your account balance, getting mini-statement of your last few transactions was as simple as checking balance amount in your prepaid phone?

Well then here’s a service which lets you all of that even without Internet.

If yes then let me introduce you to USSD based Mobile Banking.

It’s a simple, yet powerful service provided by National Payments Corporation Of India (NPCI) to allow masses to provide access to basic banking services without Internet through USSD codes. These are simple codes which connect to the telecom operator’s server and bank’s server.


Just follow the steps given below:

Dial *99# and you’ll be directed to National Unified USSD Platform(NUUP).

Enter three letter abbreviation of your bank’s name or first four letters of bank IFSC code or first two digits of bank’s numeric code. Hit send.

You’ll now see following main options:

Account Balance
Mini Statement
Send money using MMID
Send money using IFSC
Send money using Aadhar number
Change M-PIN
Generate OTP

Select the number against whatever service you want to use and hit send. Based on the bank, you’ll be directed to the appropriate pages or displayed the required information.

How to use the service?

Your mobile number should be registered with the bank to enable Mobile Banking. Remember that you don’t have to necessarily visit a bank to register your mobile number for mobile banking. It can be done at most ATMs as well.

Charges: TRAI has directed the telecom operators to charge maximum of ₹1.5/transaction.

Transaction Limit: ₹5000 per transaction.

For more details regarding availing each of the services listed above and other additional information, here’s a link for reference: http://www.npci.org.in/documents….


13. NEVER shop on a empty stomach

Never go grocery shopping when you’re super-hungry. Why? Because everything looks good, so you’ll undoubtedly start throwing in items you normally might not buy.


14. Always keep mentholated PAIN BALM such as Vicks Vaporub but not for the headache

If you find yourself in a place plagued with mosquitoes and with no bug repellent on hand, what you can do is ask around for a mentholated pain balm such as Vicks Vaporub. It works like a charm to keep the pesky mosquitoes away.

People will argue that why not to have the real deal, the ‘Odomos’ itself. Sure thing that its effective but Vicks is just an alternative and its your choice.

Below image has some other unheard uses of this ointment:


Bonus tip: 
If you want to reach somewhere fast, get one fire extinguisher. No one will stop you, if you are with it. 😛

(P.S: couldn’t get the relevant image so used this ! )

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Burning crackers on Diwali? Go ahead but after reading below..

Safe Diwali

Considering a homo-sapien intellect, I assume we all have a sense of judgement of what’s right and what’s wrong. But still sometimes, we do wrong. Mostly because we just had to, (doesn’t makes sense right ? Exactly my point. Read on).

Let me support it by stating an example. 
So we have Harsh. He is 5 years old. He loves his parents and they love him.
He respects them as they have raised him properly by all their means.

Today is Diwali. Harsh watches his parents firing up crackers.
Its his growing age and in his subconscious its been saved that whatever his parents are doing, its ethical.

Thus after Harsh grows as an adult, he still believes that whatever he is doing referencing his parents, its correct since somewhere the judgement is overshadowed by its subconsciousness. Hence its our responsibility to break the chain here itself such that this ignorance do not proceeds down the line.

Instead of being a happy occasion, people get injured on this day, roads are blocked and emergency services have a hard time reaching people who need them, roads look like gigantic trash cans the next day, small kids and old people have a hard time due to the smoke and the noise. Where’s happiness in all that?

If yes, what are some innovative alternatives?

Celebrate Diwali the way it is meant to be. Illuminate your home and society. Meet people. Avoid social media for sometime. Talk. Have a feast. Call up your parents, your friends, your relatives. Go to a temple if you feel like. Stay back at home and have a good time.

Firecrackers are not essential to the spirit of Diwali. It’s high time that such a utterly harmful practice is put to rest.

While browsing a QA site, I found an interesting questionnaire between (lets say) Shikha who supports a cracker-free Diwali and Harsh which we have already talked about.

 TL;DR (Too long Do read):

Q. Harsh: Why should we give up our tradition/religious practice/culture?

A. Shikha: Fireworks are not a part of the Hindu religion and never have been. Fireworks were first made in China sometime in the 8th or 9th century, following the invention of gunpowder. Gunpowder came to India via the Mongols sometime in 15th century and spread to Europe and the Western world via the Silk Route at the same time. Diwali has been celebrated by Hindus for at least a 1000 years before that. The first record of Diwali is found in the Vishnu Purana. So no, fireworks is not a part of Hindu tradition or culture. Lamps and lights are.
Q. Harsh: Diwali causes pollution only one day a year. What is the big deal?

A. Shikha: We might enjoy fireworks only one day a year (technically, it goes on for at least 3 days), but the smoke doesn’t disappear the same night. It doesn’t disappear for over a month, actually.

The Earth has gravity and that is what holds the Earth’s atmosphere with Oxygen in place. Smoke particles are a hundred times heavier than air molecules. So the smoke tends to stay just above the ground, for a long time. This affects animals and birds, as well as humans, who don’t even realize it.
We notice drastic changes, not gradual ones. The day there are a lot of fireworks, we can see the smoke hanging in the air. If all the smoke disappeared the very next day, we would notice it. But the smoke goes away very slowly, imperceptibly. People with wheezing, whooping cough, and asthma can tell much better how long the impact of one day of excessive smoke stays.
Animal carcasses are found for weeks after Diwali, dead due to asphyxiation or accidents due to lack of visibility caused by the smoke. It’s not a small deal at all. Even one flowerpot causes a tremendous amount of smoke to be released. Had fireworks been just light and noise and no smoke, this argument would hold water (despite the occasional blindness and deafness cases).

Q. Harsh:
But I want to be happy. Fireworks are a great source of enjoyment to myself and my family/kids/friends/relatives.

A. Shikha: Of course they are a source of enjoyment to people. They are visually stimulating. Naturally they will make your one year old smile with joy. But guess what else will make her happy? A pinwheel. A cartoon on TV. Being thrown in the air.
Fireworks are such a hit because they are so attractive to see. As humans, we have this amazing ability called rationalizing.
We cannot go about doing everything that gives us pleasure. That’s what separates us from animals — we don’t fornicate in public, we don’t drink out of the toilet, we don’t destroy our 26″ television set with a cricket bat, we don’t snatch a delicious piece of candy out of a child’s hands — because we can think and judge.
I was less than 10 when I decided to not buy any more fireworks. My mom always used to say that it is as good as just setting money on fire, but I had a little sister who enjoyed them tremendously. I battled with my decision for a year. I held a couple of sparklers and lit a couple of flower pots.
But to stick to a principle, you have to sacrifice this harmful form of instant, momentary gratification. So I did. My sister gave it up a couple of years later because she’s been environment conscious much before I ever was. There is no dearth of sources of pleasure. If we can’t let go of one thing that we know harms our neighborhood, our city, our country, and the life of our own progeny, because it gives us momentary happiness, we have some serious introspection to do.

Q. Harsh:
It’s my money, I can blow it on whatever I want to.

A. Shikha: Read point 3. And please enjoy your fireworks without having the smoke, noise, or light come near people standing right next to you. Can you? Why not make better use of the money? Buy other people something or buy yourself yet another iPad? Duh!

Q. Harsh: So many people are doing it anyway. How much am I adding as one person?

A. Shikha:
You know what, it’s high time we took a little responsibility. This line of thinking is precisely why our country suffers from all the problems it does.
So many people are taking bribes, why not me? So many people are spitting on the roads, I might as well. So many people litter, what difference is one more wrapper going to make?
Change begins with individual, and is a long process. If one person can change one other person, they’re going in the right direction. If there’s acid rain tomorrow, it’s going to fall on both me and my neighbor, even if only he has been using fireworks and I haven’t. One person’s consumption would be a minimum of Rs. 100, which is three square meals for kids working in factories making the very fireworks.
And guess what? In all probability, they’re not getting those meals! Every person thinks the same way and adds to the mass consumption of fireworks, that increases pollution and encourages forced child labor in unsafe conditions. Imagine, if every person thought of having a firework-free Diwali? One person can make a change.

Q. Harsh: There are so many other harmful sources of pollution like industrial waste and cigarettes and exhaust from cars. 

A. Shikha:
Yes, there are! And you know what? If you realize they are sources of pollution that could cause harm, you should try to stop them. Once again, what I said in the previous point comes to picture. Because someone else is doing something wrong, my doing the same thing doesn’t make it right.
Get your car serviced often and tell your neighbors and relatives to. Ask your spouse to stop smoking. If you recognize that these industries and cars are expelling so many toxins into the air already, why should you contribute more and make it worse? How does that make any sense?

Q. Harsh: Why aren’t Muslims attacked for harming the environment by slaughtering animals during Eid? 

A. Shikha:
No one needs to be attacked, and yes, slaughtering animals is awful for the environment. It causes air pollution, land pollution, water pollution, not to mention animal cruelty and spread of diseases. I am a vegetarian and I love animals. I am not too religious, but I am a Hindu.
Slaughtering animals is equally bad in the long run, although it has effects different from Diwali fireworks. Cows’ farts are a major source of greenhouse gases and grazing sheep can clear a pasture of all greenery in a very short time. Humans are hunter-gatherers, and vegetarianism/non-vegetarianism goes with nature, in aid of the environment, up to a certain extent which we’ve long crossed.
Slaughtering rare animals like tigers (wasn’t there a tiger incident somewhere one year during Eid?) is most definitely harmful to the environment and should be very strongly acted against.

However, comparing this with fireworks is just impractical as the acts, effects, and duration of effects are so vastly different. Yes, there are pseudo liberal people who pay lip service to Muslims and Christians and go all out to attack Hindus. The entire previous government is an example. But this has absolutely nothing to do with religion, at all. We aren’t attacked for fireworks and shouldn’t be.

I also saw someone asking why Christians aren’t attacked for celebrating Christmas. I don’t know what to make of that. Rearing animals for meat and butchering them, sure. That’s everyday and independent of religion. Tell choirboys off for singing carols?

It essentially boils down to the same thing, doesn’t it? So a Muslim person is harming the environment can’t therefore it’s okay for a Hindu person to? That makes no sense.

Q. Harsh:
Other countries have fireworks too, like 4th of July.

A. Shikha:
Yes, they do. However, what we do not know is that US and European countries have very strict laws for pyrotechnic displays that include the amount of certain chemicals that can go in them and the minimum distance they should have from human contact.
I’ve been to Macy’s 4th of July fireworks a couple of years, and it’s very, remarkably different from Diwali fireworks. For starters, there are fireworks only in one part of the entire city. The third biggest city in the world, NYC, has firework displays in one region alone, and that’s over a river. We go up to the banks and sit there, watching the fireworks go up from four barges over the East river. The fireworks are only rockets and not sparklers or flowerpots or string crackers or catherine wheels. They are not noisy and they last precisely 45 minutes. That’s all.
The fireworks are manufactured by Macy’s, a private company, that does not indulge in illegal child labor and provides nominal working conditions for the employees. The pollution caused by the 4th of July fireworks is quite negligible, but still kicks a fuss every year.
Another factor we don’t take into consideration is the size of the US is 3 times bigger than our entire country and the greenery is over 300 times higher. Whatever smoke goes up is quickly diluted and disappears from the atmosphere in two days.

The fireworks in other countries do not affect kids and senior citizens, stray animals, plant life, birds, or anything at all, actually, because supreme care is taken not to. India, sadly, lags way behind in valuing human and animal life.

Q. Harsh:
It’s not just Diwali. We have fireworks during New Year and Christmas and Dusshera and other festivals. 

A. Shikha:
I know! We have to put a stop to it. (How is this even an argument?)

Q. Harsh:
But what else can I do during Diwali? 

A. Shikha:
LOTS of things! We celebrate festivals as a sign of unity and gratefulness. Give.
Give to the society, give to charity.
Host lunches and dinners. Get together and watch movies. Light up your house with cheap rice lights, they’re ridiculously pretty. Use the traditional mud lamps; you would also be helping our cottage industry.
Make all kinds of food and eat. Heck if you’re that unwilling to let go, even pool in some money and buy those beautiful and expensive rockets.
They go off pretty high in clear air and give off less smoke than handheld sparklers. Or check out things people are talking about here: What are some creative and eco-friendly ways to celebrate Diwali without fireworks?

All in all, we have to remember that keeping the earth safe is our responsibility. Keeping our country safe for our very next generation is a higher priority. This world sustains us and its our responsibility to sustain it.

Q. Harsh: Thanks for clearing my doubts Shikha. I was not much aware of that.
But can’t we ban the crackers completely ? or how far is banning a right way? ?

A. Shikha: According to behavioral economics and nudge theory by Richard Thaler,
people tend to take decisions based on behavior and instincts rather taking a rational one.

For instance, by explicitly advertising condoms rather than banning avoidable sex wholly, HIV is being curbed. The time for the change may take longer but this will take care of loss of livelihoods and other monetary issues by itself. Thus, banning crackers as an order will force the State to compensate for the losses incurred by poor employees.

Hope you got my point and pleasure is all mine Harsh that you could comprehend.
Lots of people will still argue since its hard to fill a cup which is already full. 


Thanks for reading !

References: Quora.com

How an Arts candidate application rejection started WWII ?

World war II

Below are the list of 5 random but major events that though started by a tiny factor, have caused dreadful consequences.

  1. In 1905, the Academy of Fine Arts in Vienna rejected and Application. Twice. Which resulted in probable outburst of  World War II.

    Cause: That aspiring student was Adolf Hitler. He’d moved to Vienna to study Art and when his mother died, he found himself stranded there and forced to live in the slums.It was at that time he became Anti-Semitic. From there, he joined the German Army and moved up ranks.
    Eventually, Germany’s Invasion of Poland as per Hitler’s order, started World War-II. Imagine the world he would have spent his time on figure drawings, instead.hitler
  2. In 2009, one of the Google employees made a typo, and flagged every site on the internet as harmful. 

     The programmer was adding websites to the malware registry when he accidentally entered ‘/’ (forward slash), instead of a full URL. And since all websites contain slashes, that keystroke determined that every website on the web was harmful and couldn’t be visited safely.goog
  3. Aug 9, 1945, was a cloudy day in Kokura, Japan. And that’s why the U.S dropped atom bomb on Nagasaki.

     As Kokura was the site of large ammunition factory, and the first choice of the target of the bomb. But the bomber pilots had instructions only to drop the bomb only if they have visual confirmation of the factory. So they moved on to Nagasaki, where the skies were clear.A memorial  to the victims of Nagasaki stands on the site of the former factory in Kokura, to this day.naga

  4. In 1907, a stockbroker wrote a novel called Friday, the thirteenth.
    And now the U.S economy loses $900 million on the same day.The superstition caused by the book was so widespread that instead of going on vacations, work, shopping etc, a huge number of people stayed at their own place without doing anything.Due to which market suffered and registered and average gain of 0.2% or less.
  5. In 2010, the publishing house Penguin had to pulp 7000 copies of their newly released book The Pasta Bible resulting in huge loss.
     when it was discovered that one of the recipes called for “freshly ground black people” instead of “freshly ground black pepper”. Penguin cookbook calls for ‘freshly ground black people’.




Thanks for reading !