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Beautiful phenomenon based on surface tension

Beautiful phenomenon based on surface tension

Hello friends, here i'm going to tell you some  more  special and beautiful phenomenon based on surface tension.
The first is.............

1.Formation of Lead Shots (MARBLES)



For making marbles, we take the melted glass in liquid form.
Now from a certain height melted glass is threw into  a big water tank as a fountain.
During fall of glass liquid due to surface tension the melted glass acquire minimum surface area and turns into spherical marbles.

Reaching to the water tank it converts into solid marbles.
By this process the beautiful & colorful marbles  are formed,in case of big drops it is affected by gravity and it becomes some flat.

NOW BEAUTIFUL  MARBLES ARE READY

2.Spraying results in coldness


When we spray water on skin or on anyone then we feel coldness why?? do you know??
When we spray water then it converts into numerous small drops due to this the surface area increases  suddenly.
In this process the small water drops molecule comes out on the surface, to come out to the surface the drops have to work against cohesive force therefore the decrease in internal energy takes place,
hence it 's temperature falls, and we feel coldness.
"INTERNAL ENERGY IS FUNCTION OF TEMPERATURE" 

3.Dancing of CAMPHOR on water 

pure camphor pieces

 when small pieces of camphor are placed on water surface then it start to mix in water,
then a solution is formed on water surface then the surface tension decreases.
Since the camphor has indefinite and rough surface therefore solubility of each side is different 
hence the surface tension also vary .
Which side have more surface tension, the camphor piece is pulled in that direction. We see that the camphor pieces are dancing.

"IF THERE IS KEROSENE OIL ON WATER SURFACE THEN THE  CAMPHOR WILL NOT DANCE BECAUSE  KEROSENE-CAMPHOR  surface tension is less than WATER-CAMPHOR surface tension."
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