All entries by this author

Why do fish have scales?

Nov 30th, 2008 | By

Many fishes have scales but clingfishes do not have. Their body has a layer which is called mucous. Scales on the fish body helps fish in some ways like:- Firstly it acts as a protective layer so that harmful objects, fungus, bacteria and parasites cannot enter the fish body Secondly they are present in overlapping
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What are sun spots?

Nov 30th, 2008 | By

Sun spots are the parts on the solar surface which has temperature nearly 4500 K. this temperature is 1500 K less than the temperature of the surrounding photosphere. So these regions are somewhat cool then the other parts. These sun spots are 150 kilometers away from the earth or we can say 93 million miles
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Who invented Fencing?

Nov 29th, 2008 | By

Fencing is a combat sport in which two participants test their skills in a duel using weapons made of blades as thin as foils which look like long thin swords. Cordouan Gonzalo in 1510 is believed to have invented the art of fencing as we know it today. Fencing is known to have been practiced
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Why do people drink alcohol?

Nov 29th, 2008 | By

After researches many answers have come up for this question but the main answer for this question is socialization. People start taking alcohol just to get fit in the society. They took alcohol drinking as the status symbol and they also relaxed from the stress by moving in such societies. Another common reason which has
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How to lose weight without dieting?

Nov 29th, 2008 | By

Today everybody wants to look fit and smart. So for this they have to get rid off the extra fat in their bodies. Only dieting is not sufficient to reduce weight because when you eat less food your body naturally slows down the metabolic activities. Hence manage to get energy through less amount of food.
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How does an atomic bomb work?

Nov 29th, 2008 | By

Every Matter contains vast amounts of energy. To understand it better, we must keep in mind Einstein’s famous E=mc^2 equation, where E means Energy, M means Mass, and C means speed of light. It means that when the speed of light squared is multiplied by mass the amount of energy released is immense and huge.
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What are airplanes made of?

Nov 28th, 2008 | By

Mostly all the airplanes are made up of the light and strong metal because the plane has to fly in the air and it is always tried that the weight of the plane’s body should be minimum. Its frame is mostly made up of aluminum which is a light metal. 747-8 was the last aircraft
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Why an egg floats in salty water?

Nov 27th, 2008 | By

You have always noticed that an egg sinks in the fresh water or plain water while it starts floating in the salt water this because when you add salt to the water you are adding more molecules to the water. Earlier the molecules were apart from each other but now salt molecules have occupied some
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How do we get afflicted from roundworms?

Nov 26th, 2008 | By

Roundworms are also known as nematodes and can affect both adults and children. These worms will usually live in the human intestines after they have come in contact with humans. Even pets can get affected by roundworms and even pass the same to the humans. Usually the larvae or the eggs of the roundworms are
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How do volcano erupt?

Nov 26th, 2008 | By

Volcanoes are formed when there is a great stress inside the earth’s crust and the pressure of magma reaches so high that it finds its way upward causing an eruption. Sometimes the magma chamber breaks its sides and only reaches to the flank or summit of volcano and sometimes reaches to the surface causing an
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