Aeroplanes fly and reach to a height by using two things. One is the Bernoulli’s effect and other is the simple momentum transfer in the flow of air for the lift.
Daniel Bernoulli stated a principle which says that with the increase of speed of fluid the pressure decreases. Here the air over an airplane works [...]

Stain removers and detergents that are used nowadays have enzymes which work to remove the organic stains while bleaching chemicals in stain removers remove the non-organic stains. These enzymes work in a simple way. It breaks the stains so that it will be easier for the enzymes to remove them by water or they are [...]

We know that earth is tilted at a particular angle and also revolves around the sun. Different parts on the earth get more or less amount of the sunrays which cause the seasons and length of days and nights.
This can be easily understood by performing an experiment. Take an apple and pass a stick [...]

This seems to be a very easy question and almost everybody thinks that the answer for this question is very simple that the sky appears dark in night because earth’s rotating around the sun. The part of earth which moves away from the sun will not receive the sunlight and hence sky appears dark. But [...]

Easter is a festival celebrated all over the world by the Christians but the date of Easter changes every year according to the Gregorian calendar which is a calendar accepted all over the world for civil use. Gregorian ecclesiastical rules determine the date by going back to 325 CE to the first council of Nicaea [...]

Milk contains many bacteria which are not harmful for human beings. One of which gives milk sweet characteristic and the other gives it sour characteristic sweet one works more efficiently under the cold condition and sour one works more efficiently in warm conditions. When the milk is warm the bacteria causing sweetness is overpowered by [...]

Any substance which alters our state of consciousness in just a minute is addictive and alcohol is one of them. Our mind gets habitual for this “crave” or “high” state of consciousness.
Alcohol makes its way through the small intestine and the stomach and it reaches to the brain in just 30 seconds which triggers and [...]

The tower of Pisa is approximately 56m high having eight storeys which have different balls that sound different from each other. If we climb up to the tower we will definitely have strange experience because it is leaning at a sharp angle.
The construction of this tower was started in 1173 i.e. nearly 800 years back. [...]

We all know that snow is a frozen ice crystals. Then why snow is white? As the frozen water is clear and transparent.
A collection of number of ice crystals are known as snow. When light falls on the layer of snow it passes from ice crystals on top. The light slightly moves from its original [...]

When we put paper or a piece of wood or say something else onto fire we will see smoke rising from it but when it reaches a point where it is completely burnt and we are left with only “glowing embers” we will notice that no smoke is produced but fire still produces the heat. [...]

We have often seen rainbow in the sky after it has rained. When the light coming from the sun passes through the tiny droplets of water in the air exactly after it has rained we are able to see rainbow in the sky. We know that the light coming from the sun consists of different [...]

Many times we have seen reddish brown flakes on the metal. This is known as rust. When iron reacts with oxygen it forms a new substance called iron oxide. This can happens only if the oxygen level is enough for reaction. Chemical reaction takes place in this process. Iron never reacts with the oxygen present [...]

When we open the bottle of soda we always notice the fizz. This is because during the soda manufacturing large number of molecules of carbon dioxide gas are forced into the bottle and are dissolved at a pressure up to 1200 pounds per square inch in the water than it would be in the normal [...]

The process of corn popping reached to its perfection by the Native Americans for at least five thousand years back. The process was made more simple with the development of machines for this purpose.
Popcorn kernel has four main parts
1) Pericarp which is the outer coat
2) Endosperm is the starchy part that contains all starch and [...]

If we compare ballpoint pen with fountain pen it is cheaper and less messy.
As the name suggests we use ball in the ball point pen which is made up of steel, brass or tungsten carbide. The ball always remains rotating on the tip to disperse the ink while we are writing. Ball is located between [...]

While buying sunglasses all of us think that it protects our eyes from high intensity light. So how they work in the protection of our eyes? Tinting of glasses determines the amount of light we are exposed to. The black and grey tinted lenses provide most of the protection to our eyes and color distortion [...]

Due to the rising of humid air thunderstorm is formed. Air rises up because of many factors like heating by sun, melting of two different steams of air or facing of air uphill. This heated air rises up and condense at a certain height forming a cloud. If it rises further water droplets [...]

We all know that when sunrays reach to earth they heat the surface of rivers, lakes, ocean and other water bodies leaded into process called evaporation. These vapors start rising and it is the tendency of warm air to hold more water vapors. So when it reaches to height where temperature is low. Warm air [...]

Mostly we all had heard that clouds forms because of evaporation but how the whole process works is the question.
Sunrays reach to the ground supplying heat to all the objects and also in the air of our environment. Now this air which had gained heat tends to become lighter in weight so it starts rising [...]

Hurricane is one of the most violent storms experienced by earth. These storms are cyclones, typhoons etc. they are called as tropical cyclone and that form over eastern Pacific Ocean and Atlantic Ocean are known as hurricanes. For the formation of hurricane the water temperature must be 26.5 degree centigrade or above and depth of [...]