Education

The northern Chinese or Mandarin is spoken by almost double the number of people who speak English in the world. Mandarin is confined to China while English is in official use in many countries of the world.

Sometimes you may have seen or heard of people drowning while trying to stay afloat. But on the contrary the dead body floats on water for some time. Why is it so?

Geometry is a part of mathematics. There are geometrical theorems to prove everything in Geometry. But this creation is impossible according to the Geometry and there is no clue to prove the creation is wrong.