The Gregorian calendar

Developed nearly 500 years ago, it is a variant of the Julian calendar. Today it is the most widely used calendar.

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Fascinating atmospheric phenomena

We can often observe spectacular atmospheric phenomena. Let's see...

The African savannah

The largest contiguous savannah in the world is in Africa. It...

The subtropics

The subtropics are located between the tropical and temperate...

The moon

What secrets does the Moon have? Who were the first men on the...

The World of the seas

Seas and oceans cover almost three-quarters of the Earth’s...

Factors of warming

The duration of solar radiation, the angle of the Sun's rays and...

Cloud formation

When the temperature of the cooling air reaches dew point...

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Айдың гравитациялық күшінің әсерінен теңіз суы көтеріліп, қайтады.

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