The sun is the main source of light for the whole world but how it is possible no one knows till 1905 when Albert Einstein gave us the theory of E=mc2; relation of mass and energy. This theory has answered the question very nicely. The sun actually shines because within inside the sun fusion reaction […]
Most often, reason behind speaking without any sign while thinking is because during thinking a person’s mind is not in a situation of taking care of his expression. It has been noticed that when people lie to someone, or if they do not agree to the situation they make unusual expressions in their faces. These
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Have you ever noticed that snow is white until it melts? Just like other things get their colour because of the way light works, so does snow! When light shines onto Earth, it shines a huge spectrum of energies that our eyes interpret as different colours. Snow and snowflakes are ice crystals mixed with air
Long ago, some villagers went hunting. They killed some wild animals and put up a camp to dry the meat so that they might take it home. Birds started flying over the camp in a flock. They flew overhead, following the smell of the meat which was being smoked. A hyena saw the birds. He
Once upon a time, there lived a man named Egal Sheeda. One day, his bull went into the neighbour’s fields and ate his crops. Theneighbour came and complained to Egal Sheeda. Egal Sheeda promised him that it wouldn’t happen again and he would take care of the bull and not let it enter the fields
Summer is the most dreadful period with the temperature rising to 47 degrees. To cool the body in this heat, the body tends to sweat and to keep the body going in this sweat one needs to wear clothes that are light in nature. Cotton, which is a naturally grown fabric, allows air circulation, absorbs
Water can take all three states of matter—solid liquid and gas. All such states are possible because the moving speed of molecules changes. Sometimes a question arises in mind why on adding salt ice starts melting. Actually, when salt is added, water molecules start running fast. So ice starts melting. In simple words, by adding
Earlier, Pluto was also regarded as one of the nine planets of the solar system but on 24 August, 2006, it was removed from the list of planets by IAU (International Astronomical Union) because Pluto failed in fulfilling all criteria set for being a planet. As per Resolution 5A a planet must orbit the sun,
There are multiple factors due to which pimples come up on the face. They are categorized as genetic factors, hormonal and environmental factors. As a genetic reason for pimples, it is very clear that due to genes it is family inheritance. Suppose father has pimples on his face then children can have them on their
It is a well-known strange fact that owls can see well in a dark night too. Actually, in an owl’s eyes, there are two types of cells, called ‘rod cells’ and ‘cone cells’. Cone cells help perceive colours and rod cells give the visibility factor. Rod cells in an owl’s eyes are 10 times more
The ocean contains salty water and behind such saltiness there are a few reasons. Firstly, rain when falls on earth contains the dissolved form of carbon-dioxide which causes rainwater to be acidic in nature and also contains carbonic acid. The rain when erodes the rock, the acid present in it, breaks down rocks chemically and
Any object floats or drowns in water because of its density. Actually at the depth of any liquid, there is an upward force because of the effect of gravity on fluid. If an object falls on it, having less density than the density of fluid, it will float. If the object has higher density than
Sleeping is a process of recurring once state of mind and tiredness that keep the human body active. Logically, time is set such that it is worked according to the cincadian clock and also people prefer sleeping as night is taken for granted to be the time for sleeping. Night is meant for sleeping because
Mosquitoes are famous for distributing diseases like malaria, etc to human beings but you will be really surprised to know that mosquitoes cannot spread AIDS virus (HIV). Actually, AIDS is spread by unsafe sexual relationships, by injecting HIV affected blood to the body or by injecting infected injections. No doubt, mosquitoes also suck our blood
Firstly, the moon is not a light source. So it cannot produce its own light. It shines just because of the sun. Actually, at daytime the sun heats the moon and some amount of light is radiated by the moon in daytime. But such radiation is of very low intensity in comparison to light radiated