Machu Picchu is Peru’s tourist destination by excellence. In 1983 was declared Cultural Heritage of Humanity by UNESCO and in 2011 entered the list of the Seven Wonders of the Modern World. But how and when this old Inca city was built?
Have you ever wondered which are the biggest countries in the world? Looking at a world map you can already get an idea of what are the countries that occupy the most extension on our planet. However, some may surprise you. Do you want to know more? Keep reading!
If you have ever visited a cave or seen photos of one, you may have noticed certain structures called stalactites and stalagmites, vertical shapes that arise from the ceiling and floor of them.
You probably recognize the curious landscapes of the Enchanted City of Cuenca in Spain or the famous Aggtelek caves, in Hungary, these last ones being a World Heritage Site since 1995. What you may not know is that these two places have something in common: they are two types of karst relief. In today’s post we are going to tell you what a karst relay is and how the structures that characterize it are formed over time.
The first occidental men in access to the ruins of the city of Petra was a swiss archaeologist called Johann Ludwig Burckhardt that was disguised as a Jordan and discovered that way the old capital of the Nabataeans. Currently, the historical enclave of Jordany is one of the Seven Wonders of the World and it is protected by UNESCO.
San Andreas fault travels 1300 km through the California state and Lower California in Mexico. It is one of the most famous faults due to its very active seismic activity.
Seismic tomography is a technique for imaging the subsurface of the Earth based on seismic waves produced by earthquakes or seismic activity.
Over recent weeks tomography has gained media attention after it was applied to one of the 7 Wonders of the World; the Pyramids of Egypt.
The news is very interesting in terms of human knowledge. An international team of scientists has used the flow of muons (elementary particles produced when cosmic rays collide with atoms in the Earth’s atmosphere) to scan the inside of the Great Pyramid of Giza, Egypt. Using this variant of the tomography technique a large chamber has been discovered that until then had been hidden behind the walls of the construction and which could reveal new mysteries hidden in the famous and ancient structure.
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