हिमालय के ऊपर विमान क्यों नहीं उड़ते हैं?

दुनिया में बहुत सारे ऐसे देश है जो काफी ज्यादा विकसित हो चुके हैं जहां पर हर दिन कई बड़े बड़े हवाई जहाज उड़ते रहते हैं लेकिन उसमें क्या आप लोगों को मालूम है हिमालय के ऊपर हवाई जहाज क्यों नहीं उड़ाया जाता है आज मैं आप लोगो को इस बारे में बताने जा रहा हूँ ।

पहला कारण यह है कि,पर्वत श्रृंखलाओं पर चलने वाली उच्च गति की हवाएं "पर्वत तरंगों" का निर्माण करती हैं जो किसी भी हवाई जहाज़ को अनियंत्रित कर देती हैं
इसीलिए हवाई जहाजों के लिए उस क्षेत्र पर उड़ान भरना लगभग असंभव है। दूसरा कारण यह है कि, ऑक्सीजन मास्क में आमतौर पर 15 से 20 मिनट तक कि ऑक्सीजन रहती है।

अगर किसी कारणवश विमान को 35000 फ़ीट की ऊंचाई से नीचे लाना पड़ा तो ऐसा करना हिमालय में बहुत ख़तरनाक हो सकता है, क्योंकि 35000 फ़ीट की ऊंचाई पर ऑक्सीजन और वायुमंडलीय दबाव बहुत कम हो जाता है।
तीसरा कारण यह है कि विमानों में इतनी ज्यादा ऊँचाई रखनी पड़ती है कि यह पायलटों को "त्रुटि के लिए जगह" देता है। इसका मतलब है कि अगर कुछ गलत होता है, तो कप्तान समस्या को ठीक करने की कोशिश करते हुए विमान को कुछ देर के लिए हवा में अपने आप ही उड़ने देता है।

इस दौरान अगर त्रुटि सही हो जाती है तो फिरसे विमान उड़ने लगता है, नहीं तो आपातकाल लैंडिंग करनी पड़ती है। लेकिन हिमालय में ऐसा करना असंभव है।

अगर जवाब पसंद आया हो तो आपका एक अपवोट मुझे और लिखने की प्रेरणा देगा।

धन्यवाद

Source :दीप चाहल

Why does the Indian BrahMos missile look like a MiG-21?

Well in order to answer the question, let us first consider this beautiful polish MiG-29 taking off.

What you see in the orange box is the left air inlet or air duct on the beauty, these are basically vents that sucks air in, to supply the engine with O2, oxygen. Oxygen in turn is used in combustion which ultimately provides thrust.

Now let us consider the riveting YF-23 a worthy rival to the mighty F-22.

The same principal follows here too, on an advance 5th generation fighter like YF-23, those large inlets are rather not a stealthy feature and in order to reduce the Radar cross-section (RCS) the designers would hated putting such big holes on either side of the fuselage, but we see them on every fighter, be it 3rd gen, 4th gen or 5th gen. Its on YF-23 on F-22 on J-20 or Rafale or the Su-30, you name it.

Why so ?!. Because it's imperative to the engine design we humans use. It's something designers just can't do away with even if they wanted to.

Now let have a look at a good old Mig-21

(Romanian Mig-21 manuvers during a simulated dog fight against USAF F-16)

Do you notice something ?! MiG-21 has no air intakes bellow its fuselage or on it's sides ! How come soviet designers get rid of those massive intakes in 1960s while designing it, something the designers of even F-22 couldn't achieve about 60 years later.

They actually placed the intakes right in the nose of the aircraft where usually the radar sits, as you can see in the above picture.

That's what makes the nose of the MiG-21 rather eccentric looking.

Now, let's talk about the Brahmos which is a supersonic antiship cruise missile. Brahmos uses a Ramjet Air-Breather engine as it's second stage and as the name suggests it too needs air for combustion which in turn exigences Air Ducts. Which fortutiously is rather based on the Mig-21 air ducts. And that's pretty much why MiG-21 and Brahmos look similar to an extent.

Hope I cleared the doubt.

Source : Souparna Das

हमारी प्रकृति के बारे में रोचक तथ्य क्या क्या है ?

इस पृथ्वी में हर एक चीज प्रकृति से जुड़ी है चाहे वह जानवर हो या मनुष्य पृथ्वी पर उपस्थित हर एक चीज से प्रकृति का निर्माण हुआ है और हर एक चीज प्रकृति पर ही निर्भर करती है।

तो आज के इस आर्टिकल में हम प्रकृति से जुड़े अनोखे रोचक तथ्य के बारे में जानेंगे जिनके बारे में प्रत्येक व्यक्ति को ज्ञात होना आवश्यक है। तो चलिए शुरू करते हैं इस आर्टिकल को।

Amazing facts in Hindi about nature

तो आइए जानते हैं प्रकृति से जुड़े कुछ अज्ञात रोचक तथ्य।

1. सभी पक्षियों में उल्लू ही एकमात्र ऐसा पक्षी है जो नीले रंग को देखने में सक्षम है।
2. बत्तख (Duck) बिना सर हिलाए कभी नहीं चल सकता।
3. मुर्गी की अधिकतम उड़ान 13 सेकंड तक दर्ज की गई है।
4. बबूल के पेड़ एक दूसरे को खतरे की चेतावनी दे सकते हैं।
5. उल्लू अपने सिर को 270 डिग्री तक मोड सकता है।
6. New Zealand मैं पाए जाने वाले kivi पक्षी अंधे होते हैं।
7. अंतरिक्ष में धातु अपने दम पर मुड़ सकता है।
8. 1 साल में शार्क मछली की तुलना में गाय अधिक लोगों को मारती है।”cows kill more people than shark”
9. Penguin कि एक विलुप्त प्रजाति लगभग 7 फीट लंबी थी।
10. एक बेबी गिनी पिग का कवच पॉपकॉर्न जैसा दिखता है।
11. अफ्रीकी भैंसें झुंड का चयन मतदान (voting) द्वारा करते हैं।
12. संभोग करते समय डैम्फ्लाइसेस अपनी पूंछ के साथ एक दिल का आकार बनाते हैं।
13. अधिकांश व्यक्तियों को आलस सप्ताह में केवल एक बार ही आता है।
14. गर्मी के मौसम को सबसे खतरनाक मौसम की स्थिति माना जाता है।
15. Goldfish एक ऐसी मछली है जो infrared और ultraviolet दोनों तरह की किरणों को देख सकती है।
16. बांस (Bamboo) दुनिया का सबसे तेजी से बढ़ने वाला पौधा है।
17. सौरमंडल का सबसे बड़ा ज्वालामुखी मंगल ग्रह पर है।
18. कैफीन एक प्राकृतिक कीटनाशक है।
19. कंगारू कभी भी उल्टा नहीं चल सकता और हाथी कूद नहीं सकता।
20. किंग्स होली प्लांट (Kings holly plant) क्लोनिंग के माध्यम से भी प्रजनन कर सकता है।
21. बिल्लियां समुद्र के जल को सुरक्षित पी सकती हैं।
22. तुर्की में टर्की को ‘भारत‘ कहा जाता है।
23. छिपकली का दिल 1 मिनट में 1000 बार धड़कता है।
24. Puss Caterpillar नाम का कीड़ा U.S मैं सबसे विषैला कैटरपिलर है।
25. 1 इंच बारिश लगभग 10 से 15 इंच बर्फ के बराबर होती है।
26. अधिकांश मेंढक अपनी ऊंचाई से 20 गुना ऊंचाई तक कूद सकते हैं।
27. Black holes काले नहीं होते हैं।
28. गाजर मूल रूप से बैगनी रंग के होते थे।
29. मादा टरंटुलस पानी के बिना दो साल तक रह सकती है।
30. स्लो लॉरिज (Slow lorises) केवल दक्षिण पूर्व एशिया में पाए जाते हैं।
31. 400 से 800 मिलियन टन शिकार केवल मकड़ी परिवार द्वारा एक साल में मारा जाता है।
32. आइसलैंड एकमात्र ऐसा देश है जहां मच्छर नहीं पाए जाते।
33. मच्छर (mosquito) O-type ब्लड ज्यादा पसंद करते हैं।
34. पूरी दुनिया में अकेले amazon rainforest 20% ऑक्सीजन पैदा करता है। इसे पृथ्वी का फेफड़ा भी कहा जाता है।
35. अधिकतर कीड़ों (insects) की कम से कम 6 टांगे होती है।

Source: Pankaj Joshi, Factzila.in

What are some interesting psychological facts about man?

1. Men stare at women for almost a year of their life.

A man spends about 43 minutes a day looking at 10 different women. This amounts to 259 hours (or almost 11 days) each year. As a result, between the ages of 18 and 50, men spend 11 months and 11 days admiring girls.

Women in their turn look at men only for 20 minutes a day. Between the ages of 18 and 50, they spend only 6 months on this activity.

2. Men think and love differently than woman. Don’t make him wrong. Celebrate your differences instead.

3. Men lie twice as often as women.

The average man lies to his colleagues, boss, or partner 6 times a day while women only do it about 3 times a day.

It turned out that men lie twice as often as women, and the most common lying phrase is "It's OK. I'm fine."

4. If a man forgets something that’s important to you it doesn’t mean he doesn’t love you. Since men are more compartmentalized these are two different things and not necessarily related.

5. Men eat twice as much when they are with women.

It might seem strange but it is a fact: men eat more when they have lunch or dinner with a woman. For example, they eat 93% more pizza and 86% more salad than they would eat in the company of men.

6. Men are primarily logical and will take their time to make decisions. Give him as much time as he needs. This is how it should be.

7. Men are far more sensitive to the tone of your voice than women are. When he feels like you’re blaming him it’s because there’s a hint of resentment in your tone.

8. A man desires to give to you. In order for him to do this, you must give less and be willing to receive more.

9. Men express their strongest feelings through the act of making love.

10. Men will do just about anything for a woman that knows how to influence him with warmth.

Source : Ellen Margaret

What sounds extremely wrong, but is actually correct?

Brushing your teeth after you wake up in morning is not ideal.

When Doctors say you should brush twice a day they mean that you should brush after your breakfast and dinner.

After you eat a meal or snack that contains sugar, the bacteria in plaque produce acids that attack tooth enamel. When you brush your teeth, you help remove food and plaque - a sticky white film that forms on your teeth and contains bacteria.

So if you don't brush your teeth after dinner then bacteria destroy your teeth all night (8 hours) and if you don't brush your teeth after breakfast then again they will again desintegrate your teeth all day.

If you brush your teeth after breakfast your mouth will be fresh till lunch and brushing your teeth after dinner will keep your mouth fresh all night and you don't even have to brush teeth after waking up in the morning till breakfast. Your teeth can afford time between lunch & dinner without brushing.

Understand this & aware others.

Sincerely

Please follow for more such information.

Source : Rajesh Sodhi (MBBS from PGIMS Rohtak)

How do I maintain a good credit score to get a low interest loan?

People often ask this question !

Your credit history fundamentally calculates your credit score. All your previous loans and credit card transactions are used by credit bureaus to calculate scores. If the lender uses CIBIL, then a CIBIL score of 750 and above is considered good.

To maintain a good credit score, you need to follow these rules:

• Make your credit payments timely and regularly. All your EMIs need to be paid before the due date. All your credit card bills should be at least on a payment plan. Defaulting on any such payments will lead your credit score to plummet.
• Maintain your credit utilisation percentage to 30%: This means that the spending on your credit card should be maintained at 30% of the credit limit.
• Don’t cancel old credit cards: If you pay their bills on time, your old credit cards only make your credit history richer.
• Follow your CIBIL report continuously. Your credit score not only decides your interest on a personal loan but also expedites the loan approval process.

Hope my answer clarifies your doubt.

What are some mind blowing facts about Spain?

• La Tomatina is an annual festival held in Spain where people throw thousands of tomatoes at each other. More than 150,000 tomatoes are usually harvested.

• There is no word in the national anthem of Spain.

• Spain's 47-story skyscraper has no lift.

• The divorce rate in Spain is very low, and only 5% of children in Spain are born to unmarried parents.

• Spain is the world's largest producer of olive oil. Spain is producing about 44% of the total olive oil in the world.

• In 2013, Spain was the third most popular tourist destination in the world (after France and America).

• Traditionally, Spain has two surnames - the first surname from the father, and the second from the mother.

• Madrid is one of the most environment friendly places in the world. Which means they sleep all day and stay out all night. Madrid is the capital of Spain.

• Spain also has the world's oldest existing lighthouse - the Tower of Hercules. It was built in the first century and is still operating today.

• The Eiffel Tower, which is in Paris, France, was originally planned to be built in Barcelona, ​​Spain.

• Spain is very mountainous, and the second hilly European country after Switzerland.

• Every year Spain hosts the Bulls Festival and every year more than 1 million people come to see it so that people can take to the streets with Spanish bulls.

Image Source:- Google

Mission KarmYogi Official Government Targets

What are some rare pictures that we have never seen?

• Barack Obama smoking marijuana during his school days.

• A boy who has a surprise for his crush.

• Michael Jackson as Charlie Chaplin, 1970s.

• Mother hides her face in shame after putting her children up for sale, Chicago, 1948

• Titanic preparing to leave port, 1912.

• Albert Einstein holding his own puppet, 1931.

• Eiffel Tower under construction.

• Job seeking in 1930s.

• A young girl plays the game of chess with the chimpanzee at London Zoo, 1955.

• Charlie Chaplin performs in front of Federal Hall on Wall Street, 1918.

• Albert Einstein visiting the Grand Canyon in 1931.

• A soldier kissing his girl from the train, 1950.

Article about National Recruitment Agency

Source : NBT

How can I save the long-term capital gain tax on an equity mutual fund?

In this answer, I will explain how you can save up to Rs 10k per year on the Long Term Capital Gain (LTCG) tax for equity mutual fund.

As per current tax rules, there is a 10% tax on LTCG over an above the profit of Rs 1 lakh. An investment is qualified as long term if it is more than 1 year old.

Please note that the key here is “there is no tax on profit up to 1 lakh”.

How can you save tax up to Rs 10k on LTCG?

Let’s say you started a SIP of Rs 20k in Kotak Standard Multicap Fund- Direct-Growth on 1st February 2017. (For simplicity, we are considering only 1 mutual fund)

Monthly SIP: Rs 20,000

Total Installment: 37

Investment Amount: Rs 20,000*37 = Rs 7,40,000

Units Purchased = Sum of units of each month = 21,239.67

NAV as of 17th Feb 2020 = 40.661

Current Value of Investment = Rs 8,63,626

Profit = Rs 1,23,626

---

Now, the total profit on Kotak Standard Multicap Fund till date is Rs 1.23 lakh.

However, this profit includes investment till 1st Feb 2020.

Long Term Capital Gain is applicable if your investment completes 1 year. Investment within 1 year would fall under short term capital gain. Hence, we need to consider only the investment till 1st Feb 2019.

---

Total Installment till 1st Feb 2019: 25

Investment Amount: Rs 20,000 * 25= Rs 5,00,000

Units Purchased till 1st Feb 2019 = 14,928.34

NAV as of 17th Feb 2020 = 40.661

Current Value of units purchased till 1st Feb 2019 = 14,928.34*40.661 = Rs 6,07,002

Profit = Rs 1,07,002

---

Since the units purchased till 1st Feb 2019 qualifies as long term investment, the gain from selling these units would fall under LTCG. It means that if you sell these units, there won’t be any tax till profit of Rs 1 lakh.

As per the above calculation, your LTCG is Rs 1.07 lakh, you can sell 14,928.34 units to save 10% tax on 1 lakh profit.

(In fact, you don’t need to sell 14,928.34 units. You need to sell 14,756 units which would make the profit as 1 lakh.)

You don’t have to pay any tax on the profits till 1 lakh. Hence, you will save Rs 10k. Isn’t it cool?

(If you want to continue with the investment for a specific financial goal, you can reinvest the amount received by buying the same fund at current NAV. In this case, the return would be added to the principle.)

In this way, every year you can save Rs 10k on LTCG. This concept is also known as Tax Harvesting.

Source :Sahil Bhadaviya

What is the difference between term insurance, life insurance and health insurance?

There is a lot of confusion when it comes to insurance. Some people think that insurance is all about LIC in India. This is similar to Maggie which is a noodle but we don’t say that we want noodles. We say that we want Maggie. That’s the result of great marketing

So, let’s try to clear the confusion (and bust some myths) about “insurance” in India.

Insurance is broadly classified into the following categories:

1. Life Insurance
2. Health Insurance
3. Auto Insurance
4. Property Insurance

In this answer, we will discuss life insurance and health insurance.

Life Insurance: Let’s say you have a family of 4 with a wife and 2 children. You have a home loan of 40 lakh and your wife is a homemaker. It means you are the only bread earner in the family. Your kids are 5 and 7 years old. You have a total investment of 10 lakh in FD, mutual funds, etc.

Unfortunately, if something happens to you then-

• Who will provide financial security to your family? Will 10 lakhs be enough?
• Who will pay the home loan EMI?
• Who will provide the education to your children?
• Who will feed your family?

That’s exactly the reason why we need life insurance. To make sure that tomorrow if something happens to us, our dependents do not have to worry about money.

However, unfortunately, Insurance has become a business where companies are fooling people just for the sake of profit. Today, most of the people in India are trapped in such bad insurance products.

How do you know if the insurance is good or bad?

If the insurance is purely to provide financial comfort to the family after the death of the insurer, then it is a good product. These products are called Term Plans.

Wait…what will happen if nothing happens to you till a certain age? The money is lost, right?

What if there is an insurance product that provides financial support to the family in case of death and also provides a return in case nothing happens after a certain age? That’s a win-win situation, right?

Wrong!

This is exactly the reason why people fall into the trap of insurance products where they end up mixing insurance and investment. Such products are called endowment plans, ULIP plans, etc. They provide both options of financial support in case of death as well as returns if nothing happens until a certain age.

Corporates would come up with a various product name like Jeevan Anand, Jeevan Rakshak, Money Back, etc. but either they are term plan or endowment plan or ULIPs. But all products are bad except term plans.

But why are they bad?

The reason in the “Annual Premium”. Companies are not doing any charity by giving multiple benefits. They compensate for this by charging very high premiums. The premiums are so high that if you try to calculate the annual return
(which very few people know how to do it) you will realize that the returns are even lower than FD. The reason is due to multiple levels of commissions including the insurance agent commission and company’s own commission. No wonder why LIC is such a big company today.

Moreover, the insurance agent is motivated to sell products which give a higher commission. The agent is not motivated to sell term plans because they provide very low commission due to lower annual premiums. That’s not good for you.

Some people would say that ULIP’s are good as the returns are linked with the market and provide higher returns than FD. I would say that ULIP’s are still bad. This is because the returns of ULIP’s are much lower than mutual funds.

When what should you do?

Take a term plan for life insurance and invest the rest of the money in various other options like mutual funds, FD, PPF, etc.

Conclusion: Life insurance is very important but only the term plan is good. Rest of the endowment plans and ULIP plans are money-making instruments for the corporates. Never mix insurance and investment. In fact, you don’t even need an agent to buy a term plan. You can directly go the website of term plan providers and opt for the best term plan. (You can read this answer to know how to select a good term plan).

Let’s discuss health insurance with the same example.

Let’s say you have a family of 4 with a wife and 2 children. You have a home loan of 40 lakh and your wife is a homemaker. It means you are the only bread earner in the family. Your kids are 5 and 7 years old. You have a total investment of 10 lakh in FD, mutual funds, etc.

Tomorrow, if you fall sick or met with an accident (life is unpredictable) and you end up with hospitalization for few days with a total bill of 1.5 lakh including operation. In this case, how are you going to pay the bill? Are you going to break your investment? You might have been saving and investing to buy a car or save for child education or retirement. That would directly impact your financial goals.

A lot of people end up breaking their investment or even borrow money from friends or relatives. That’s sad, isn’t it? In fact, healthcare cost is ever increasing. A small health problem could literally wipe out all your savings.

How to avoid this situation?

Opt for medical/health insurance which provides health coverage to your entire family. In fact, the facilities of health insurance are so good that you don’t even need to pay any upfront money. They have a tie-up with major hospitals and everything goes cashless. No headache of arranging the funds. (I hope you always stay healthy and don’t have to deal with this.)

Conclusion: Opt for good health insurance and avoid unexpected expenses due to health issues.

I hope this answer helps in getting a good picture of various insurance terminologies and what is important and more importantly- what to avoid.

Thanks.

Source : Sahil Bhadviya

Some Rare Information about Bangladesh

• Prostitution in Bangladesh is considered legal. Bangladesh is one of the few Islamic countries where prostitution is legal.

• Bangladesh is one of the most corrupt countries in the world and has consistently risen to a high position among the world's most corrupt countries.

• Bangladesh is the fourth largest Muslim country in the world, with 90% of the population in Bangladesh being Muslim.

• The three largest rivers of Asia flow through Bangladesh. Those rivers are Ganga, Meghna and Brahmaputra.

• Hilsha fish meat is the national dish of Bangladesh.

• Cox's Bazar is the longest beach in the world, covering 125 km.

• The Sundarbans is the largest mangrove forest in the world, and is preserved as a UNESCO World Heritage Site. It covers an area of ​​139,500 hectares.

• The capital of Bangladesh is Dhaka. The city was founded in 1608 CE and has a population of 17 million. It is called the city of mosques.

• The Bay of Bengal, surrounded by India, Bangladesh, Myanmar, Maldives, and Sri Lanka, is the largest bay in the world.

• People of Bangladesh rarely smile because they smile repeatedly as a sign of immaturity.