509 years ago a Portuguese explorer Ferdinand Magellan sailed across the Pacific Oce…
Although it is only one ocean that is sorrounding all the continents but we have give…
Have you ever wondered why planes are white colour . Why not red,blue or green let us…
We all tell lies but have you wondered how a lie detector works lie detector was inve…
Do you know the red pen which we use in our daily life specially in india teacher…
The world is filled with mysteries. Some solved, some you can't measure and some …