2 billion years ago, occurred a nuclear fission in the Oklo uranium deposit, current Gabon, Central Africa. It’s the only natural nuclear reactor discovered so far.
This post’s subject is carbon 14. A radioactive isotope which allows determining the age of an artifact or living being from thousand of years ago.
The Lagrange points were described in 1772, by the mathematician Joseph-Louis Lagrange, in his paper “Essay on the Three-Body Problem”.
A locust swarm destroys crops and pastures it finds along the way, causing economic loss. Moreover, can travel for long distances.
Speleothems are rock formations inside caves, the most known are stalactites and stalagmites. These and other formations are shown in this post.
I received doubt messages about biodigester. It is a way to generate energy from biomass, whose operation is this post`s subject.
In the second part about Postojna cave it is shown most part of permanent exhibition, called Expo Cave Karst or Expo Jama Kras.
The cave in Postojna city, Slovenia, is a natural wonder. As usual, what is shown in this post isn’t all the exhibition.
El Niño and La Niña are climatic phenomena with opposite features. The description and influence in climate are shown in this post.
This post’s subject are the 5 discontinuities of Earth’s interior which demarcate borders between inner layers.