Friday, August 21, 2026

Lakes heated by geothermal activities

  Geo thermal activity turns up all over the planet, usually as hot springs, geysers.


Rarely does this heat an entire lake  !!!


Such lakes are   ------


1.  Kelimutu lakes, Indonesia 


2.  Lake Natron, Tanzania 


3.  Yellowstone Lake,  USA


4.  Frying Pan Lake, New Zealand 


5.  Boiling Lake, Dominica 

Thursday, August 20, 2026

Diplomatic Blue Book

 Diplomatic Blue Book  =  Government report about other countries.


What's in it  ??


Its like a file where the government keeps


1.  Letters between our country and other countries.


 2.  Agreements and treaties we signed.


3.  Speeches by PM and foreign minister about foreign matters.


4.  What our stand is on war, trade and problems with other nations.



Why blue colour  ??


Long ago, important government reports were  printed with BLUE COVERS.

 So, people started calling them BLUE BOOKS   !!!



Why do they make it   ??


To tell people what the country is doing outside.


Proof of what decisions are taken.


So that everyone  knows the official story.

Which mountain is called " Yellow mountain " ??

  The mountain known as " yellow mountain " is Mount Huangshan.


It is located in eastern China. It is one of the most famous mountains in the country.


The name " yellow mountain " does not come from the colour of mountain   !!!


Instead, it is named after legendary Yellow Europe, also known as Huang Di.


Long ago, people believed that yellow empire came to this mountain to find the secret of immortality.


  A ruler of China renamed the mountain to honour him.


Fog and clouds are seen here for more than 200 days a year !!!


During sunrise and sunset, clouds reflect golden light which sometimes makes the mountain to look yellow   !!!!


Wednesday, August 19, 2026

Which planet spins the slowest ??

 When I was watching a quiz program, this question was asked,


Which planet spins the slowest ??


I know JUPITER is the planet which spins fastest on its axis !!!


I found out these facts about slow spinning planet    -----


1.  This planet rotate so slow that the wispy clouds floating above, are faster than it  !!!


2.  This planet spins backwards  !!!


3.  The planet has a sweltering climate. Temperatures reach upto 900 degree Celsius   !!!


4. This planet is the hottest in entire solar system   !!!


5.  A day on this planet lasts longer than a year !!!



Planet is         VENUS   !!!

Bheja Fry Question

  In a 10 liter solution, ratio of milk and water is 3  :  2.  How much milk is there in solution   ??



Answer 


The ratio of milk : water is  3 :  2


Total parts  3  +  2  =   5  parts.

Total solution  =  10  litres 


So,

The amount of milk in the solution,

        3

      ------   *     10   =    6  litres

        5


Amount of water in the solution,

        2

     ---------    *  10   =   4  litres

       5

Tuesday, August 18, 2026

Where is Asia's largest natural ice skating rink ??

 Asia 's largest natural ice skating rink is located in Western Himalayas.  !!!


It's an unique natural phenomenon where seasonal freezing transforms water into historic arena for winter sport.


It is among the few rinks in the world shaped entirely by climate rather than machines  !!!


This is eco friendly and extremely rare.  This is also major winter tourist attraction.


It is    SHIMLA ICE SKATING RINK ,  SHIMLA    !!!


It is the only open air ice skating rink in South Asia.

Animals that live in our house rent free !!!

 A house isn't just for people   !!!!



We ahare the house with few uninvited but mostly harmless guests.


They are   ----


1.  House lizards ,  silent pest controllers 

                  House lizards eat mosquitoes, flies, moths and cockroaches helping control pests naturally.





2.  Spiders, web architects of our corners  !!!

  
                       Spiders help trap insects, sometimes eliminating 100s in a day  !!!! Most species are harmless.






3.  Ants ,  unofficial food inspectors

                           Ants show up where there is food  !!!  Their presence can be annoying but they are well organized and intelligent.






4.  House centipedes ,  lightning fast hunters

                           They may look frightening but they are the most effective exterminators.





5.  Silver fish ,  paper lovers  !!!

                              Small, shiny and fast silver fish are always seen munching paper, glue and fabric starch.




6.  Cockroaches,  least loved guests !!!!
       
                             While they are considered as pests,  they are highly adaptable and survived millions of years.





7.   Mice ,  freeloaders with big appetite 

                               Highly intelligent and resourceful,  they can squeeze through a hole of size of a coin   !!!
                           

Monday, August 17, 2026

Why do humans have earlobes ??

 WE DON'T KNOW THE REASON    !!!!


Earlobes are one of those body parts that don't have a single, obvious job  !!!


Earlobes vary a lot across people. 


Other primates have much smaller or no distinct lobes.


Removing them surgically won't affect hearing or to maintain balance.


Earlobes are made up of skin and fat, no cartilage or muscle. They are just structural left overs.


Some theory states that earlobes might help dissipate heat since they are fatty and have a good blood supply.


There is no bones in earlobes so it doesn't affect hearing.


But researchers  say earlobes are an evolutionary byproduct with no critical function  !!!!

What does herding the cat mean ??

  Herding cats is an idiom used to describe a task that is extremely difficult, chaotic and nearly impossible to manage.


It refers to the challenge of trying to organise or control a group of  individuals who are uncooperative.




We can keep a cow or sheep together. They naturally stay together in a herd.



But not cats   !!!!



Cats are solitary and headstrong.



If we try to push them in one direction, they are likely to scatter around or hide.


Or they just simply ignore us    !!!!



To describe an impossible task to do ,  this idiom is used.


Sunday, August 16, 2026

Countries that border 3 oceans

 Three countries border three oceans outright. 


These countries have continues mainland coastlines on 3 oceans. 


They are   ----


1.  Russia 

2.  Canada

3.  United States of America


Bordering oceans are  Pacific, Atlantic and Arctic. 



Australia, South Africa and Chile also can be considered as bordering 3 oceans. 



If South Africa is considered, why not India  ??!! 



4 oceans through overseas territories are

 France and United Kingdom. 

Fastest rivers in the world

  These are the fastest rivers -----




1. Amazon river




2. Brahmaputra river




3. Colorado river 




4. Congo river




5. Franklin river




6. Futaleufu river




7. Yangtze river




8. Zambezi river

Saturday, August 15, 2026

Why Titan is weird ??

 Titan is Saturn's biggest moon. 


Titan is weird because it is the only world besides Earth, with stable liquids on surface, an Earth like cycle and complex organic chemistry.


Everything is made up of ice and gasoline instead of water  !!!



Titan has rivers, lakes and seas.  But not of water !!!

They are made of liquid methane and ethane.


Rain falls, cloud forms and there are seasonal storms too. Titan is the only place besides Earth with full weather cycle !!!


Titan has dense atmosphere. Atmosphere mainly comprised of Nitrogen just like Earth  !!!


Titan is Earth like, but super cool. Cold enough that water ice is as hard as rock  !!!

National symbol of which country ??

  This question was asked on Koun Banega Karodpati program.


Question 


Soyombo which is derived from Sanskrit word Swayam Bhu,  meaning

 self born is a national symbol featured in which country's flag ??


1.  Mongolia 


2.  Kazakhstan 


3.  China


4.  South Korea



Answer 


We will look into each county's flag  !!!


Flag of Kazakhstan features a sky blue background with a gold Sun and 32 rays above a soaring eagle in centre.


Kazakhstan ruled out !!!


In Chinese flag, we see one large gold star and 4 smaller gold stars  !!!


China is ruled out.


In South Korean flag, red and blue circle in the center and 4 black trigrams.


South Korea ruled out.


Flag of Mongolia is a vertical triband with a red stripe at each side and Mongolian Soyombo symbol centering on left most stripe.


Answer      Mongolia     !!!


I searched web for more information.


Soyombo DOES come from Sanskrit  !!!


A Mongolian Buddhist scholar created a new writing system.

He named that script  SOYOMBO  script  !!!


He took the Sanskrit word Swayam Bhu, and adapted it to Mongolian as Soyombo.


Soyombo means THE UNIVERSE   !!!!

Friday, August 14, 2026

Why cat sleeps on us and what it really means ??

 Cats are masters of sleep  !!!


Despite having countless napping options, cats constantly choose to sleep on us.


This behavior is far more meaningful than simple comfort.


Cats may appear independent, but they are deeply social with the persons they trust..


Sleeping near or on a human allows them to feel safe, secure and emotionally connected.


A person's warmth, scent and steady breathing provide reassurance and helps them to relax.


Cats mark us as  part of  their territory  !!!


Our body provides them warmth.


For many cats,  human lap is the ultimate comfort nap especially during daytime naps   !!!!

Bheja Fry Question

 Question 


A circle is perfectly inscribed inside a square. If the area of square is 64 cm '2, what is the area of circle ??


Answer 



We know the area of square as 64 cm2.

=>> Area of square = side2 = 64

==>> side = sqrt 64

==>>side  =  8  cm



Circle is perfectly inscriptions inside the square.

==>>  side of square  =  diameter of circle

==>>  8 cm


We know

 diameter of circle  =  2  × radius of circle

Radius  =   diameter  ÷ 2

Radius  =  8  ÷  2

Radius =  4 cm


Area of circle, 

                    Ï€ × radius^ 2

                    Ï€ ×  16

                    3.14  ×   16

                     50.24


Area of circle  =  50.24  cm2   !!! 

Thursday, August 13, 2026

Why does day old rice gets dry in refrigerator ??

 We cook white rice in our house.  When it remains more than required, my mother seperates the remaining cooked rice in a bowl and keeps it inside the fridge.


Next day rice becomes dry and hard.. But it is very much suitable to prepare curd rice  !!!


We have it with pickle.


SCIENCE OF STALE RICE 


When we first cook rice, the starch granules absorb water and swell up, making them soft.


This is called GELATINIZATION.



When the rice cools in refrigerator, starch molecules start to realign themselves into a crystalline structure.


As they recrystallize, they effectively squeeze out the water once they held.


This makes the rice to feel dry if the rice is kept covered inside refrigerator.


Refrigerators pull the moisture out of the air to prevent frosting.. This further dehydrates rice.


Rain Shadow

  Rain shadow =  " dry side  " of mountain  !!!


To know, what is " dry side " of a  mountain, we must know what is " wet side " of a mountain.


1.  Wet side

              Wind blows from the ocean , hits a mountain.

              The air is forced up. As it goes up, it gets cold. And all the water in it, turns into rain  !!!

              So, this side of mountain gets lots of rain and is called " wet side  ".



2.  Dry side or Rain Shadow 

               After the air crosses the mountain top, it comes down on other side.

                Now the air is dry, as it has dumped all its water content on " other  " side  !!!!

                 So this side gets very little rain and it is known as " rain shadow  ".



Example 

                 Mountain  :  Western Ghats

                  Wet side  :  Mumbai

                  Rain Shadow  :  Solapur,  Bijapur 

              

Wednesday, August 12, 2026

Why are human babies so helpless ??

                    Human babies have big brains. But mothers have narrow hips as we walk on 2 legs.

So baby can't stay inside till the brain is fully grown.  

Baby has to come out early.

That's why human babies are born unfinished   !!!!



                         When human babies are born, their brain is only 25% done. The rest grows after birth.

For the first year, human babies need mom/dad for everything.



                          But other primates '  babies stay inside the body for longer time. When they are born, their brain is already more grown. So they can hold on, crawl and cling right away  !!!



So this difference make human babies so helpless because of unfinished brain   !!!

How do hospitals clean their laundry ?!

   Hospital linens are not average laundry load  !!


It can be exposed to bodily fluids, bacteria and pathogens during patient care.


If these textiles are not properly disinfected, they may contribute to the spread of hospital acquired infections.



HOW THE LAUNDRY IS CLEANED  ??


The machines operating in laundry work are operated in carefully calibrated thermal environment.


They use specific detergents and disinfectants to eliminate harmful bacteria and viruses.


Linens are washed at temperatures exceeding 70 degree Celsius for a period of time so that effective removal of pathogenic microorganisms are achieved.


Linens used in isolation ward and surgical ward are cleaned in different way than general ward linens.

Tuesday, August 11, 2026

Rabbit and Hare : What's the difference ??

We all have listened to the story of rabbit and tortoise.


Both of them challenged each other to take part in a running race competition.


Whoever reaches the final stop, he would be the winner.


As tortoise walk slowly, rabbit crossed half the distance and fell asleep !!!!


When rabbit woke up, tortoise was slowly walking and was nearing to final stop.


Rabbit ran as fast as it could  but couldn't make to final stop and tortoise won the race  !!!


This story everyone knows ......


But the twist is the original story was having  HARE  instead of RABBIT !!!!


WHAT'S THE DIFFERENCE BETWEEN HARE AND RABBIT   ??


HARE and RABBIT both look same but differ each other in how they live and grow up.


1.  Rabbits are born hairless, blind and helpless.

     Hares are born fully furred, eyes open and ready to run within hours  !!!!



2.  Rabbits are more compact and stocky.

      Hares have longer ears and longer limbs.



3.  Rabbits have shorter hind legs.

      Hares have longer hind legs.



4.  Rabbits are social.

      Hares are mostly solitary.



5.  Rabbits don't do seasonal colour changing.

      Some hares change colour. Brown in summer and white in winter.



6.  Rabbits rely on zigzag running.

      Hares rely on speed and fast running.


World's largest cities by population

  These are the most populated cities in the world   -----


1.  Shanghai ,  China 


2.  Delhi ,  India 


3.  Kinshasa,   Democratic Republic of Congo


4.  Beijing ,  China 


5.  Karachi ,  Pakistan 


6.  Shenzhen ,  China 


7.  Mumbai ,  India 


8.  Guangzhou,  China 


9.  Kano ,  Nigeria 


10.  Istanbul ,  Turkey 

Monday, August 10, 2026

Wealthiest country in Europe

 This country is wealthier than King of Britain  !!!


This country has no airport, no currency and no official language.


Here crime rate is so low that people don't even bother to lock their doors during night !!!!


This tiny nation tucked between Switzerland and Austria.  


It has no airports. One has to fly into another country.


It has no currency.  People use Swiss Frank.


It has no official language of its own.  German is borrowed.


Yet, it is the richest and safest country on earth.


It is                         LIECHTENSTEIN   !!!



Why coconuts are water proof ??

  Coconuts are water proof because they have 3 natural layers that block water .


1.  Hairy husk

                        Spongy  +   full of hair 

                         Water can't soak through fast and it helps the coconut to float.



2.  Hard shell

                      Like a sealed wooden box. No holes for water to get in.



3. Tight skin inside 

                       Pressed against white meat. Keeps the coconut water sealed in.




Nature has made coconut water proof.  So that coconut can float in ocean for months  !!!


It can grow into new tree on another beach.


Nature made coconut floating,  sealed water bottle  !!!!

Sunday, August 9, 2026

Which island is known as island of enchantment ??

 This island has one of the world's brightest bioluminescent Bays.


This is the group of islands.


This sits on northeastern Caribbean sea.


It is an unincorporated territory of United States.


Here we can see a mix of Taino, Spanish and African culture.


Island       Puerto Rico   !!!


Lesser known facts -----


1.  Puerto Rico is home to three of world's five bioluminescent Bays.


2.  This is also called " Land of Valiant Lord  ".


3.  It is native to a type of frog whose croaking can reach 100 decibels !!!


4.  It is considered world's oldest colony.


5.  Because it is a US territory, American citizens do not need a passport to travel and currency is US Dollor.

Why body feels hot at night ??

  Feeling hot at night because body is trying to cool down  !!!


To prepare for sleep, body widens blood vessels near skin to release internal heat.


This drop in heat makes skin feel warm at night.


Mattresses of synthetic bedding traps body heat instead of letting it escape.


Spicy foods, alcohol and caffeine stimulate sweat glands.


Stress and anxiety increases heart rate and heat.



Taking shower before going to bed and using natural fabrics like cotton and linen optimizes bedding and helps in cooling   !!!


Saturday, August 8, 2026

Why are our fingers, different lengths ??

  Different length fingers make the best grip  +  tool hand !!!!


If all fingers were of same length, our hand would be pretty useless !!!


If we try making fist ,  our fingers naturally curl into a curve that matches round things.



Thumb  =  It is a clamp that works against other fingers.


Index  +  Ring  =  They help with  precision and power.


Middle finger  =  Anchor in the centre.


Pinky finger  ≠  It tucks in and adds stability.


This length difference lets the hand to form a power grip.

If.the fingers were equal,  we would just have a paddle  !!!



Our ancestors needed hand for climbing. 

Equal fingers would have made us worse at surviving,making tools etc

World's largest man made island

  This island also holds the Guinness world record for world's largest artificial island .


No... No... It is not in Dubai or China  !!!!


It is so big that over 4,00,000 people live here today.


It is surrounded by 3 freshwater lakes.


Built was started in 1919 and took 67 years to complete.


The goal was simple. Drain parts of north sea inlet. Reclaim the land. Turn open water into farmable and livable ground.


It is FLEVOPOLDER  in NETHERLANDS    !!!

Friday, August 7, 2026

Largest natural satellites of solar system

 The only natural satellite humanity knew was Moon, natural satellite of Earth.


In recent years, more than 800 natural satellites have been discovered. Astronomers haven't yet discovered a moon outside the solar system. 


Here is the list of largest moons of solar system   ------


1.  Ganymede, moon of Jupiter 


2.  Titan , moon of Saturn 


3.  Callisto,  moon of Jupiter 


4.  Io ,  moon of Jupiter 


5.  Moon ,  natural satellite of Earth 

Which countries have " No currency " in the world ???

  When a country don't have official currency, it does not print or manage its own money.


Instead it uses foreign currency for buying and selling things.



Reasons for a country not to have its own currency ---


1.  Countries are very small in size 


2.  Countries want a safe and stable economy.


3.  Priming own currencies is expensive.


4.  Using popular currency makes the trade easier.



Countries that don't have official currency  -----


1.  Vatican city


2.  Monaco


3.  San Marino


4.  Andorra


All these countries use Euro as their currency.


1.  Panama


2. Ecuador 


3.  El Salvador 


All these countries use US dollor as their currency.

Thursday, August 6, 2026

Bheja Fry question

 It seems a very straight forward question.  


Question 


You have 80 apples. You divide them by half   and add another 30 apples . How many apples you are left with ??


Hint  :  It is not  70  !!!



Answer 


At the first glance ,  we make calculation that


We have 80

Dividing it by half , half of 80 is 40


Then add 30, totally 70 apples !!!


But it is clearly said answer is not   70.



We will again go through question.


It says, we have 80 apples.


Divide them by half  !!!


Here is the culprit.....


We must divide by half, not dividing by 2 !!!


That means,   80   /   ( 1/2  )

==>>   80  *  2  =  160     !!!



Now again add 30 apples.


==>>   160   + 30  =  190  Apples.


Finally we are left with      190   apples  !!!


Biggest animals on Earth

  1.   Biggest bird in the world 

                                                           OSTRICH 


2.  Biggest land animal in the world 

                                                                         AFRICAN ELEPHANT 



3.  Biggest reptile in the world

                                                             SALTWATER CROCODILE 



4.  Biggest whale in the world 

                                                             BLUE WHALE 



5.  Biggest insect in the world 

                                                             GIANT CHINESE STICK INSECT 



6.  Biggest snake in the world 

                                                             RETICULATED PYTHON 



7.  Biggest spider in the world 

                                                             GOLIATH BIRD EATER 



8.  Biggest marsupial in the world 

                                                                     RED KANGAROO 



9.   Biggest primate in the world

                                                                   EASTERN GORILLA 



10.  Biggest freshwater fish in the world     

                                                                                 STING RAY

Wednesday, August 5, 2026

How flames behave in space ??

 Flames behave differently in space due to microgravity.


Here are the main differences  ----


1.   Spherical shape 

                 Flames tend to be spherical in space as there is no buoyancy or convection to distort their shape.



2.   Slower burning 

                 Flames burn slower and more efficiently in space as there is no oxygen flow to fuel combustion.



3.  No flicker 

                   Flames don't flicker in space as there is no air movement to cause turbulence.



4.  Blue colour 

                    Flames in space often appear blue indicating complete combustion.


Which is the southern most city in the world ??

  All of us know that Antarctica lies in southern hemisphere. It is the southern most continent in the world.



Antarctica has no fixed cities or villages.




It has only research base and weather stations.



Many South American cities claim to be the southernmost city of the world.



But according to atlas,


PUERTO TORO, CHILE  is considered as southernmost permanent city in the world.



It is the place where people dwell 24 hours in 365 days.


There are only 36 inhabitants of Puerto Toro.  They are mostly fishermen and their families.

Tuesday, August 4, 2026

World's northern most capital

 This is the city which officially holds the northern most capital of a sovereign country.


It receives nearly 24 hours of sunlight during summer.


This city runs entirely on renewable energy.


It is home to many iconic structures.


Despite the latitude, it is mild for its location because of Gulf stream.


It is home to 1,40,000 people.


Other northern most capitals are  -----


Helsinki, Finland 


Oslo ,  Norway 


Tallinn ,  Estonia 


Stockholm ,  Sweden 


Nuuk in Greenland is a bit norther.  But Greenland is the self governing territory of Denmark.


So, this city is the official northern most capital of a sovereign nation.


City is         REYKJAVIK ,

                capital of ICELAND    !!!

What is the person who makes pizza called ??

 A person who makes pizza is called PIZZA I OLO (male ) or PIZZA I OLA ( female ). It is an Italian word.




PIZZA I OLO 


                  This Italian word specifically refers to a highly skilled, professional pixza chef who has mastered the traditional art of pizza making from scratch.


   




In English, we have words like ----




Pizza Chef / Cook 


                   These are standard restaurant style titles.


                   A pizza chef often manages the kitchen inventory, develops the menu recipes and oversees kitchen staff.


                    A pizza cook generally focuses on assembling and cooking the pizzas.






PIZZA BAKER 


                   This title is usually reserved for individuals who focuses heavily on dough preparation, proofing and baking processes.


                     He often works on a bakery style kitchen setting.

Monday, August 3, 2026

Difference between cement and concrete ??

CONCRETE HAS CEMENT IN IT BUT CEMENT DON'T HAVE CONCRETE IN IT  !!!



KEY DIFFERENCES 


1.  Cement is a fine binding powder.

     Concrete is a solid masonry product.



2.  Cement is made up of limestone and clay.

     Concrete is a mixture of cement, sand, water and gravel.



3.  Cement acts as glue.

      Concrete is a structural building block.



4. Cement is prone to cracking.

     Concrete is strong and long lasting.



5.  Cement is used for small repairs.

     Concrete is used for large scale constructional work.

Countries that control world's food supply

  Listed below are the agricultural heavyweights that are feeding the planet !!!




1. United States 




2. Brazil 




3. China 




4. India 




5. Russia 




6. Ukraine 




7. Canada 




8. Australia

Sunday, August 2, 2026

Why do men have " Adam's Apple ' ??

 When we look at the front of a man's neck, we spot a hard ridge jutting out just above the collarbone.


But in women and other primates, we don't find this.  !!!


The lump itself is not a seperate organ. It's the front edge of thyroid cartilage. It protects the voice box.


In children of both the sexes, this cartilage sits at shallow angle and barely shows.


During male puberty,  rising testosterone drives the cartilage to grow forward.


This is male specific.


The visible " Apple " is just the seam of sharper angle pressing against the skin. !!!


Why testosterone remodels the throat ??


Boy's voice drops roughly over adolescence, as longer and thicker vocal chords vibrate more slowly.


While girl's vocal chords drops only slightly   !!!!

Rainbow snake

  Rainbow snakes are the prettiest snakes in North American continent  !!!


It has a shiny black body and dark blue on top.

3 bright red stripes running down the back and sides.

Red and black checkerboard pattern belly



In sunlight oe water, the scales look like a rainbow !!! That's how it got its name...


 

Cool facts


1.  They are non venomous 


2. They are shy and harmless.


3. If scared, they press their tail up and hide their head. 


4.  They'd rather play dead instead of fight  !!!!

Saturday, August 1, 2026

Which country was the first to officially use a national anthem ??

In earlier times,  countries did not have national anthem as we have today.


There was no single song officially chosen to represent the nation as a whole.


With the raise of  nationalism in 18th century, countries started using songs that reflects the feeling, hope and struggles of ordinary people.




FRANCE   is the first country to officially adopt a national anthem.



The anthem was written during French revolution when French people were fighting against monarchy and foreign threats.



In 1795, France officially recognized this song as national anthem.

Rare and fun facts about lizards

  1.  Lizards are the largest group in reptile family.


2.  Lizards can detach their tails as a defence mechanism to escape predators.


3.  Lizards inhibit every continent except Antarctica.


4.  Some desert dwelling lizards might go their entire life without drinking water  !!!


5.  Komodo dragon is the notable venomous lizard.


6.   Chameleon from lizard family can change their colour.


7.   Lizards lack eyelids.


8. Some lizards can run on water .