Who is right !?

It's the 2nd standard class of a well-known school . Teacher is teaching them how to do addition . She wanted to explain with example .


She asked Rahul : " I will give you one apple now . After some time , I will give you one more apple . After that , one more apple . Tell me how many apples you have now ? "


Rahul answered , 4 apples .


Teacher again repeated the question . This time also , answer is 4 . Teacher thought its better to try with some other colour fruit .


Again she asked : " I will give you one mango . After some time , I will give another . After some time , I will give one more . Tell me how many mangoes you have now ?"


Rahul replied 3 mangoes .


Teacher was happy . She knew that Rahul is an intelligent boy . Again she repeated the question with apples . Rahul answer is 4 !


Teacher was about to lose her temper . But she remained calm , asked Rahul why is he answering differently with apples and mangoes ?



Rahul said , " I already have an apple with me . So when you give 3 apples , totally I have 4 apples . I don't have mangoes with me . So when you give 3 mangoes , that is the number of mangoes I have with me now !! " 



Who is right ?!!

The demon of fever : Jwarasura

We call fever in Kannada as Jwara . We all feel uneasiness and difficulty during fever . In Hindu mythology , Jwarasura is hailed as the deity of fever . Jwarasura = Jwara ( fever ) and Asura = demon .


This Jwarasura was born out from the sweat of the fore head of God Shiva when he was meditating . Soon he ( jwarasura ) started posing threats to gods .


He was such a menace that even God Vishnu got inflicted by him ( had fever ) once . God Vishnu killed this demon by cutting him into 3 parts . These each 3 parts have developed separate head and limbs . It is said that this demon has the remarkable ability to move in all the directions at once . 

Great donor , Karna

Once Arjun was constructing a temple . But he was short of wood for the indoor wooden works of temple . He didn't know what to do .

That time , Krishna suggested that if they ask Karna , he may lend some wood . Arjun was not ready for this . But on Krishna's insist , he went along with Krishna to Karna's house .

Karna after coming to know their demand , asked them to wait outside and he went inside the house . Time passes , he didn't return.

Arjun got impatient and was prepared to leave . That time , Krishna suggested to look for Karna inside the house . Both went inside .

Karna was in his room.....


















Breaking his wooden cot into small pieces of wood !!!!!!!!

Science experiment which surprised everyone.....

Today I am telling about the scientific experiment which surprised everyone. Let me take hot water in a long glass pipe and cold water in another. Now to differentiate between the two, I will add blue colour to hot water and red colour to cold water. Now I will make blue colour pipe upside down on red colour pipe. Meaning I am mixing cold water to hot water. Now we get surprised by seeing that blue coloured water is resting on red coloured water !!!! Means hot water layer is above the cold water. What is the meaning of this??????? ????? ?????? Water gets expand when heated. So density of hot water is now increased. Hot water is less denser than cold water. Hence it will stay at the top when we mix hot water with cold water. That's why we see two distinct layers of colours. Now I will do vice a versa . Now I will mix cold water to hot water. Means mixing red coloured water to blue coloured one. Now we will see a different colour throughout the pipe!!! Now what is the meaning of this???? ?????? ????? As I said earlier, cold water is denser than hot water. So when we mix cold water to hot water then cold water goes down of the pipe being denser. Means now both the coloured waters mix with each other and hence we get a new coloured water. Summary ---- Hot water is less dense than the cold water . So when we keep cold water below and hot water above , the lesser dense hot water is already on top of cold water . So we will see two different layers of water . Bottom is of red colour ( cold water ) and above that blue colour ( hot water ). Now when hot water is below of cold water , now hot water molecules start moving upwards as they are lighter than cold water molecules . This movement of hot water molecules upwards is called convection. At this time , there will be the mixing of both hot and cold water molecules . As we have coloured them , there will be the mixing of blue and red colour . Thus , we see the mixed colour , magenta colour water .

What makes hot air balloon to float ?

I have seen in the t.v. balloons floating in the air. Even people use hot air balloons to travel. Question came up in my mind why hot air balloon floats? Normal balloons according to my knowledge will not float . ????? ???????? ?????? It is because of change in density of air . As air becomes hot , its density becomes less meaning it becomes lighter than the surrounding air . As now it has become lighter , it floats . Same thing is used in hot air balloons . Now to land down , they make the hot air to get ventilated. Now density of air is becoming more and balloon will descend .