What is Dark Matter?

The name dark matter means that this form of matter is not visible because it does not interact with electromagnetic field. Read more
A girl smelling a rose

The Physics Behind Recognising Smell

The quantum theory of smell says that our nose is listening to molecules. This theory is based on the vibration of the chemical bonds. Read more

Can We See A Single Atom?

An atom is very small, so small that the light wave cannot touch them, it simply passes through it. So, we need some methods to see atoms. Read more

How long is one second?

Have you ever wondered how we decide one second to be one second long? How long is one second? We measure second by measuring the oscillations of Caesium atom. Read more
the blue colour of sky explained

Why is the Sky Blue?

White light consists of seven different colours; VIBGYOR. The air molecules scatter the light which causes the blue colour of our sky. Read more
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