why do we cry, animals tears

What do tears of animals mean?

We say “have a crocodile tears”, but do animals cry really?


supercooling water

The phenomenon of Supercooling

When liquid does not transform in ice under 0°c it is called “Supercooling”. Discover how this phenomenon is possible


recycling plastic bottles

Recycling plastic bottles can help growing your plants

Greenhouse, flower pot…Give a second life to empty plastic bottles


how does rainbow form

How does a rainbow form?

Did you know that rainbows are composed of colors of white light?


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