Why 90% of humans are right handed ??

 The 90% right handed majority is an evolutionary result of brain lateralization.

 Here the left hemisphere is specialized in both language and motor control of right side of body.

Evolution favoured a " division of labour " that made the right hand, the specialist for complex tasks like tool use.

Language processing and writing, throwing require high level neural coordination. Left brain handles speech, so right hand became the natural choice for detailed work.

In a community where most people use their right hand to do their work, it is easier for children to learn by using the same hand.

WHY AREN'T WE 100% RIGHT HANDED  ??

Left handed ness persists through frequency dependent selection.

Left handers have surprise advantage over right handed opponents. This helped left hand minority to survive and pass on their genes !!!

Most expensive object by weight

  This question was asked on Koun Banega Karodpati program.

Question 

What kind of object is British  Guiana 1c magenta, most valuable object by weight  ???

1.   A stamp 

2.  A will

3.  Currency note 

4. Coin

Answer 

British Guiana 1c magenta is a rare and historic stamp issued in 1856 by British Guiana.

Only one copy is known to exist making it highly valuable.

This is over 165 year old stamp and is part of a limited issue. 

It is remarkably well preserved and sold for 9.5 million dollor in the year 2014  !!!

Kids are always kids !!!

 My nephew Aniruddha is football fan too. ..!!! 

Now FIFA World Cup matches are going on, I started to tell my limited knowledge of football game. 

Me  :  Aniruddha,  FIFA World Cup matches are going on  .. ..!!! 

Aniruddha  :  Yes  , this time 48 countries are participating...... 

Me :  That is a huge number   !!!  

           Can you name some of the countries   ???? 

I thought he would name  2-4 countries. 

Aniruddha  :  OK

                          I will say continent wise. 

European continent

Austria

  Belgium

  Bosnia and Herzegovina

  Croatia

  Czechia

  England

   France

  Germany

   Netherlands

 Norway

  Portugal

  Scotland

 Spain

  Sweden

   Switzerland

  Turkey

South American continent

Argentina

Brazil

 Columbia

Ecuador

Paraguay

Uruguay

North American continent

Canada

United States of America

Mexico

Asian continent

Iran 

Iraq

Japan

Jordan

Qatar

Saudi Arabia

South Korea

Uzbekistan

African continent

Algeria

Cabo Verde

Cote D'ivore

Democratic Republic of Congo

Egypt

Ghana

Morocco

Senegal

South Africa

Tunisia

Central America and Caribbean

Cuba

Panama

Haiti

Curacao

Oceania

Australia

New Zealand

By hearing the names of countries continuously without a break , I forgot to count them    !!! 

Still I am recovering from the shock    ....!!!!

Differences between Lime and Lemon ??

  Lime and lemon look similar at first glance.

But their colours, flavours, textures and culinary uses are quite different.

1.   Limes have bright green skin.

      Lemons have vibrant yellow colour.

2.  Limes taste sharper and slightly bitter.

      Lemons have cleaner and mild sweet citrus flavour.

3.  Lemons are larger and oval shaped.

    Limes are smaller and rounder.

4.  Lemons contain more juice compared to limes.

     Lemons are ideal for baking and lemonade recipes.

5.  Lemons contain more vitamin C than limes.

      These make ideal immunity drink.

What does M1 on train coach mean ??

 The M1 coach is part of Indian railway's newer planning.

These markings M1, M2, M3...... refer to AC 3 - tier economy coaches. 

Difference between regular 3AC coach and M1 coach  ----

Standard 3AC coach has 72 berths

M1 has 83 berths

3AC coaches offer slightly more space and features like privacy curtains.

M1 coaches are more compact and have features like charging points, reading lights, fans and air-conditioning.