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Wednesday, 29 September 2021

Why does the color of the air do not appear? & One more facts.

 Why does the color of the air do not appear?

 Any object (solid, water, air) color depends on the color of the light reflected by its particles. Normal air particles do not reflect any light color. One reason is that the density of its particles is very low. But some gas like chlorine particles reflects yellow-green, so he looks yellow green. 


Why is the color of the teeth white?

 The Cover is made of the Celestium and the white of the calcium appears tooth white.


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Tuesday, 28 September 2021

What is solar power and how is it generated?

 What is solar power and how is it generated?


 Solar power is the power obtained from the sun.  This power is used by converting it into electricity.  Actually this form of energy is called solar power.


 Solar power is used in homes and cars.  This form of energy is clean and pollution free.  Solar panels are needed to receive and use energy from the sun.


 These solar panels are placed on the roofs of the house and in the open ground, where the direct sunlight comes on it.  Solar panels consist of solar cells that harness the energy received from the sun.  Because solar energy is converted into electricity by solar panels.


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Monday, 27 September 2021

In the summer days the days are long but is the time also long? &One more facts.

 In the summer days the days are long but is the time also long?


 Time is not small. In summer the sun rises early and sets late, so the days are longer.


 Why is the light white in a tube light as compared to a bulb?


 The color of the light of a tube light depends on the gas filled in it. If it contains carbon dioxide, it gives white color, if it is neon, it gives red light. But the filament of tungsten in the bulb gives light yellow color.


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Sunday, 26 September 2021

When the earth rotates, we don't fall?

 When the earth rotates, we don't fall?


   The force of gravity that binds you to the earth!  The size of the Earth is many times larger than the size of a human, due to which humans do not feel this rotational motion.  For example, put an ant on a football and spin the football, the ant will not fall.


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Saturday, 25 September 2021

Why do elephants keep crying and shaking their ears throughout the day?


 Why do elephants keep crying and shaking their ears throughout the day?


 You must have always seen that the elephant keeps on moving its ears throughout the day, have you ever wondered why?  In fact, the elephant releases the heat of its giant body out through the ears.


 This work is done by the cells of the ears of the elephant.  This is the reason why African elephants have very big ears, because there is a lot of heat there.  Elephant's eyesight is very poor.  The special thing is that they see less in bright light and more in low light.


 The pupils of the elephant's eyes dry very quickly, due to which they are unable to move their eyes.  In order for the pupils to move easily, it is necessary to keep them moist, which is why the elephant's eye keeps on supplying a fluid, which comes out of the eye when it is more, which we consider as tears.


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Friday, 24 September 2021

What are Lights?


 What are Lights?


 Light is a small amount of energy that can be transported.  A photon, which is an elementary particle and has no real shape.  It can never be divided.  Can only be created and destroyed.


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Thursday, 23 September 2021

Why does hail fall?


 Why does hail fall?


 The water of the ponds and the sea evaporates and forms a cloud of rain in the sky and these clouds rain water.  But when the temperature in the sky drops to several degrees below zero, then the moisture present in the air gets condensed i.e. in the form of small droplets of water.  More water freezes on these frozen droplets.  Gradually they take the form of snow balls.  When these balls become too heavy, they start falling down.  While falling, colliding with the hot air of the way, they turn into droplets.  But the thicker balls that do not melt completely fall to the earth in the form of ice balls.  These are what we call ole.


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Wednesday, 22 September 2021

Why are water droplets round?


 Why are water droplets round?


 When water falls in the form of a drop, the water droplets take a circular shape due to the surface tension.  Surface tension is a specific property of the surface or surface of a fluid.  Due to this property, the surface of a liquid is attracted to another surface (e.g. towards another part of a liquid).  Due to surface tension, the drop of mercury assumes a circular shape.



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Tuesday, 21 September 2021

How is curd made from milk? & More 3 Facts.


How is curd made from milk?


 Yogurt is formed by the fermentation process of bacteria. Fermentation of lactose forms lactase (lactic acid), which reacts with milk proteins to turn it into curd.


 It also gives it its special texture and characteristic sour taste. Yogurt contains protein, calcium, riboflavin and vitamins etc.



 Why do hurricanes and cyclones occur?


 Due to a sudden decrease in air pressure at a place, there is a possibility of air coming from the place of high air pressure there. Storms, hurricanes, cyclones come at the speed of the oncoming wind.



 How are clouds formed?


 The water of seas, lakes, ponds and rivers rises up as vapor from the heat of the sun. Clouds are formed from this vapor.



 Why is only one side of the Moon visible from Earth?


 It is a small body which is a quarter of the Earth in size. The Moon revolves around the Earth in about 27 days 7 hours 43 minutes 15 seconds and rotates on its axis in the same time, which is why only one side of the Moon is visible from Earth.


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Monday, 20 September 2021

Why is nitrogen gas filled in aircraft tyres?

 


Why is nitrogen gas filled in aircraft tyres?


 Air contains up to 78 percent nitrogen, while 21 percent oxygen and one percent other gases. Nitrogen does not harm rubber,


 While oxygen can damage the tire. Oxygen often causes the tire to lose its elasticity and strength. In such a situation, oxygen attacks the rubber particles, due to which there is a risk of tire burst.


 Nitrogen is cooler than oxygen and is rubber friendly. However, nitrogen is not completely pure. Nitrophils reduce tire inflation and help the tire stay normal. Nitrogen can stay in the tire for a long time, while oxygen runs out quickly.


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Sunday, 19 September 2021

What are cyclones, and how are they formed?

 


What are cyclones, and how are they formed?


 Cyclone: ​​A strong storm of warm winds around low atmospheric pressure is called.  In the Southern Hemisphere, these warm winds are known as "cyclones" and move in a clockwise direction.  Whereas in the northern hemisphere these hot winds are called "hurricanes" or "typhoons".  They move in anti-clockwise direction.


 Due to the intense heat of the sun in the sea of ​​hot areas, the air heats up and creates an area of ​​low air pressure.  The air heats up and rises rapidly and becomes saturated with the moisture above, condensing to form clouds.  The moist air moves down and up to fill the void.  As a result, these winds move around the area very quickly, causing heavy rain and thunderstorms along with thunderstorms.


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