Почему?

From this application, you will learn:

- Why do stars fall
- Why is sea water salty
- Why is "13" - an unlucky number
- Why can not divide by zero
- Why do we cry when we cut onions
- Why can not you look into the eyes of a cat
- Why do not we feel the air pressure
- Why the Pacific called the Pacific
- Why Penguins do not fly
- Why in the cold is better to breathe through the nose
- Why do horses sleep standing
- Why is Mars called the "red planet"
- Why did dinosaurs
- Why can not I sleep in front of the mirror
- Why do we see the world of color
- Why are sharks afraid of dolphins
- Why is yawning contagious
- Why do we grow old
- Why do turtles live long
- Why do volcanoes erupt
- Why seven days a week
- Why snakes do not blink
- Why is petrol can not be extinguished with water
- Why ostriches bury their heads in the sand
- Why does not happen in the winter thunderstorm

and many many others!

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