Tag Research chemicals - results: 3

How dangerous mercury is and where it applies

How dangerous mercury is and where it applies

Mercury beautiful but dangerous. Since childhood we are told that mercury is dangerous, but many families still use mercury thermometers. In Europe they are banned because of the danger to humans, but that is where it is produced ...

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2020-07-31

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10 of the most important experiments that changed our world

10 of the most important experiments that changed our world

the Experiments are different. What did scientists and researchers in the pursuit of science. What crazy experiments they did not intend to open something new. It all now can bring a smile or, on the contrary, puzzling over the st...

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2020-07-19

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How many tables of chemical elements actually exist?

How many tables of chemical elements actually exist?

Before you the classification of the chemical elements, organized on the basis of different properties of the elements of their charge of an atomic nucleus. In 1869, Dmitri Mendeleev presented to the colleagues from the Russian ch...

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2020-07-14

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