earth

Science and Technology

Iridium – The Rarest Metal on Earth!

Iridium is a transitional metal, which is located in the middle of the periodic table, below rhodium. If we take a look at the prevalence of all elements in the earth’s crust, Iridium holds the last place, that is a billion atoms of all that there is and only one atom of iridium. This metal is 40 times rarer than gold. In much higher concentrations iridium is found in meteorites and also in the depths of the Earth, in magma. Interestingly enough, in the layers of rock sediments, though more precisely in the formation of clay, that is aged about 66 million years there were found high concentrations of iridium…

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The Loneliest Tree In The World

Tucked away in a corner of London’s Royal Botanic Gardens, there is a very peculiar plant. At first glance, it resembles a stumpy palm tree, but this ancient specimen is incredibly rare. It is, in fact, the very last of its kind on Earth. Encephalartos Woodii is a cycad, a type of plant that once dominated the planet during the Jurassic Period. Over the millennia, the age of the cycad came to an end. And in the case of Encephalartos Woodii, we may have been left with only one—a single male specimen. This tree is the loneliest bachelor on Earth. If you like this video, share it on Facebook and…