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Who invented telephone?

If you are curious to know who invented the first voice communicating device otherwise known as telephone, then it’s none other than the famous Scottish inventor, Alexander Graham Bell. He is given credit for inventing the first working telephone, which could actually transmit speech electrically. […]

Why do people cry?

Both animals and humans can produce tear but the reason for tears can be different in both of them. Tear ducts are present below the upper eyelid which lubricates and protect our eyes from the dust particles. Human eyes produce three types of tears i.e. […]

Why is the ocean salty?

Everybody has different stories and mythological beliefs that why ocean is salty but scientific reason behind it is that some carbon dioxide is dissolved in the rain from the surroundings and water becomes slightly acidic because carbonic acid is formed with carbon dioxide and water. […]