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Why we cry?

Why we cry?

Tears can be the result of our sorrow, happiness or tiredness, but why are we crying at all? In the video of “Ted Ed” – “Why we cry? Three Types of Tears, “Alex Gendler explains the physiology of tears, through the three classifications:...
Incredible Facts about the Sun, Must See

Incredible Facts about the Sun, Must See

The sun is at the center of our solar system, where it provides enough heat and light to make life on Earth possible. It was formed about 4.6 billion years ago, yet it is one of the youngest in our galaxy. Scientists believe that everything started with a huge cloud...