Asbestos

Published February 17, 2019

Asbestos

It is hard to believe that mittens and twines are weaved from this mineral! Asbestos gives fine fiber that can be spun according to all the rules of this art. Moreover, this stone fiber has one miraculous property: it does not burn in the fire (but it sinks very quickly in water)...

The history of the magnetic poles of the Earth

Published April 21, 2019

The history of the magnetic poles of the Earth

Let's touch another mystery of our planet. This is the secret of the geological past of the Earth, which left its traces; you just need to find and decipher them. And one of the ways to penetrate the long past times is to study the history of terrestrial magnetism. For example, the history of the magnetic poles of the Earth can shed bright light not only on the magnetic...

Stones of the caves

Published July 09, 2019

Stones of the caves

What could be more wonderful and interesting caves? Narrow winding passages, unexpectedly expanding into entire halls, then descend steeply down, then fall off precipices, then turn into narrow cracks. The bizarre form of the caves is mixed with the rustle of bats, and the quiet measured noise of falling drops... But what is especially remarkable in the caves are the stones of the caves...

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