Kids are always kids !!!

 Yesterday night was the FIFA worldcup final match between Spain and Argentina.

By now, everyone has come to know that Spain has become the champions     !!!!

Yesterday at 7 pm, my nephew Aniruddha had called me.

Me  :  Aniruddha, tonight is the final football match between Spain and Argentina  !!!

Aniruddha  :  Yes  ......

Me  :  Who do you think will win the match  ??

Aniruddha  :  It is going to be Spain   !!!!

Me :  Why Spain ??   Argentina are also the hot favourites.....

Aniruddha  :  Argentina were the last time champion.  So this time, its Spain  !!!!!

Me : What's this logic ??!!  

          If a team plays well, that team would be champions for second time also.

          Messi would cast his magic this time.

           Argentina would be champions this time  !!!

Aniruddha  :   Stats say, only two teams have won back to back worldcup.

                           That too, long back.....

                            Italy in 1934 and  1938     and  Brazil in 1958 and 1962.

                            Then no one has won back to back worldcups.

Me  :   Stats are there to break !!!

            This time, Argentina would break the jinx

Aniruddha :   By tomorrow morning, we would come to know the result 

                         I strongly believe Spain are going to be champions  !!!

Me  :  Let's wait and watch .....

Aniruddha and stats were right !!!

Argentina lost and Spain have become new champions    !!!

Countries with militarized economics

  Militarized economy  usually means a country where defense is a large share of GDP.

In other words, defense industry is a core part of national economy.

Military burden  --  %ge of GDP 

1.  Ukraine      -----    40% of GDP

2.  Israel           -----    8.8%

3.   Algeria         -----    8.0%

4.  Saudi Arabia   ---  7.3%

5.  Russia           ------        7.1%

6.   Poland        ----        4.9%

The language of cats

Cats communicate through a quiet, layered language made up of movement, sound, posture and timing.

1.  Human directed meows

           Meowing is a sound cats mainly developed to communicate with humans.

           Cats learned that humans respond to meowing. Cats know that humans respond quickly to meowing  !!!

2.  Individual vocabularies 

Not all meows mean the same thing  !!!

A short, high pitched meow often signals greeting or mild request.

A long drawn out meow expresses frustration or insistence.

Rapid meow expresses excitement or urgency.

3.  Purring under stress 

               Purring often means comfort and contentment. Cats also purr when they are anxious, injured or unwell.

4.  Tail positions 

A tail held upright usually means confidence or friendliness.

Slowly swaying tail means focus or mild irritation.

Fast, sharp tail movements indicate   overstimulated and may react.

5.  Ear positions 

Forward facing ears suggest curiosity or interest.

Sideways ears indicate uncertainty.

Flattened ears  pressed back against head are a clear warning sign.

6.  Whisker radar 

When whiskers are curved, cat is calm.

When whiskers are pushed forward, cat is alert or hunting.

When pulled tightly against the face, cat is stressed or fearful.

Why are fighter jets painted grey ??

  Fighter jes are painted grey because of several reasons.

1.  Visual camouflage

                     Fighter jets are painted grey because the colour closely matches with sky and clouds at different altitudes.

                      This camouflage helps jets  blend into the  background making it tough for enemies to spot them with naked eye.

2.  Reducing radar signature 

                   Modern grey paint on jets often contains materials that absorb rador waves. 

                  This rador absorbent paint reduces the chace of getting detected by enemy radars

4. Heat and light management 

                Using grey colour paint reduves the risk of  overheating during long drives.

5. Stealth technology 

                 These fights absorb signals from other rador and infrared materials.     

Why we must not go near a moving train ??

 The main reason is the SUCTION EFFECT !!!

Suction effect created by high speed air movement can pull us towards or even under the train  !!!

Suction effect is also known as Bernoulli's principle.

When a train moves at high speed, it drags layer of air with it. 

According to Bernoulli's principle,  fast moving air between us and train has lower pressure than the still air surrounding us.

This pressure difference creates a net force that can push us towards the moving train   !!!

It can lead to a fatal collision or pulling us into the gap between train and platform.

Watching a fast moving object at close range can cause vertigo.  We may lose our balance and lean or Falk toward the track.