Nazi secret weapons (part 1). The UFOs of the Third Reich

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Wars are always tragic, without exception. They feed on the worst of the human being, although the best of him can also be manifested. Solidarity, empathy, personal sacrifice… and creativity and imagination, even though they are often applied to the war. Whether we like it or not, wars produce important technical and scientific advances. Many … Read moreNazi secret weapons (part 1). The UFOs of the Third Reich

The “false” surname of Miguel de Cervantes

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Miguel de Cervantes Saavedra, the genius of literature capable of immortalizing several literary works. A name that is repeated unceasingly and that is taught from an early age. Name: Miguel. Surname: de Cervantes Saavedra. But here there would be an error according to a recent theory exposed by the researcher Luce López-Basalt. The writer from … Read moreThe “false” surname of Miguel de Cervantes

The cause of the smell of damp soil

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This smell, called petrichor, which pleases many people, is perceived after the rain. The responsible is a substance called geosmin (aroma of the earth in Greek). Geosmin is produced by Streptomyces coelicolor or Albert’s bacteria, although it is also produced by some cyanobacteria and filamentous fungi. This bacterium is found in most soils, and apart … Read moreThe cause of the smell of damp soil

A walk through the misteries and history of El Retiro (Madrid, Spain)

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The purpose of this article is to serve as a future guide for travelers visiting the Buen Retiro Park. More importantly, we hope it will help to fall in love with this fascinating place. It aims to serve as a magnifying glass to scrutinize the secrets that await us in the most unsuspected corners of … Read moreA walk through the misteries and history of El Retiro (Madrid, Spain)

When Spain almost got involved in World War I

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It is well known that Spain did not participate in the tragic and destructive First World War. Both the country and its colonies remained neutral between 1914 and 1918. However, there were occasions when Spain was almost forced to participate in the conflict. In 1916, after two years of siege, French and English troops conquered … Read moreWhen Spain almost got involved in World War I

The largest rodent

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It is the capybara (Hydrochoerus hydrochaeris), also known as chigüire, chigüiro or carpincho. It can measure 50-60 cm high and 1.3 m long and can weigh… more than 50 kg! This species lives exclusively in South America. It lives in more or less numerous groups in the vicinity of watercourses. A curious feature is that … Read moreThe largest rodent

When sirens were birds

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Classic sirens have not always been the beautiful half women and half fish beings. The first descriptions characterized them half woman half bird, and they were daughters of Achelous, the Greek spirit-god of the homonymous river, or god Phorcys, and of the nymph Calliope according to some versions or of some muses according to others. … Read moreWhen sirens were birds

Ireland. Experiences in legendary lands (part 4). The end of the odyssey

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Part of every journey is always the end, and that is what we are going to present in this last article about our stay in Ireland. Do you want to know what was the Great Famine and the indelible mark it left on Irish people since then? Would you like to travel with us through … Read moreIreland. Experiences in legendary lands (part 4). The end of the odyssey

The slowest terrestrial mammal

Bradypus tridactylus, the pale-throated sloth, belongs to the supraorder Edentata, just like the armadillo and the anteater. Ground speed: 2.44m/min (0.105km/h), although it increases slightly when climbing trees using its 3 long claws, reaching 4.57m/min (0.272km/h). Its neck has a great mobility, it can turn it almost 360º. It almost never descends to the ground, … Read moreThe slowest terrestrial mammal

Ireland. Experiences in legendary lands (part 3). Brief foray into the history of Ireland and visit to Belfast

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During our stay in the beautiful Ireland we made a brief stop in the capital of Northern Ireland. It was really necessary. Belfast doesn’t just ooze history everywhere. The city itself is a flowing emotion. Every corner and every street is home to numerous voices that are confused through the centuries. They are voices intermingled … Read moreIreland. Experiences in legendary lands (part 3). Brief foray into the history of Ireland and visit to Belfast

The densest forest of Juniperus thurifera is in Soria

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Did you know that the world’s densest forest of Spanish junipers is in Spain? Specifically in the medieval Soria town of Calatañazor. This Natural Reserve is home to 150-210 Spanish junipers (Juniperus thurifera) per hectare, which are also considered to be the highest in the world (some are over 15 metres high). Spanish junipers have … Read moreThe densest forest of Juniperus thurifera is in Soria

The peculiarities of hummingbirds

Hummingbirds are a family of birds (Trochilidae) composed by many species. The size of the hummingbirds varies depending on the species: the smallest weighs about 2.2 grams and the largest about 20 g. They feed on flowers’ nectar (they are important pollinators) and small insects. They have a very large heart beating at more than … Read moreThe peculiarities of hummingbirds

The apparition of the Virgin Mary that inspired the flag of the European Union

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Even if we don’t realize, mysterious events and enigmas surround us constantly. So much so that mysteries have inspired all sorts of issues that we see or experience on a daily basis, and whose enigmatic foundation we do not know. Such is the case, for example, with the flag of the European Union. On the … Read moreThe apparition of the Virgin Mary that inspired the flag of the European Union

Ireland. Experiences in legendary lands (part 2). Crossing borders

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This time we weren’t going to explore the Republic of Ireland, we were going to change territory… and nation. Our destination was Northern Ireland, which belongs to the British crown and which, like everything on the Emerald Isle, also possesses that inherent magic typical of legendary lands. The next day we got up early. We … Read moreIreland. Experiences in legendary lands (part 2). Crossing borders

Ballooning or the flight of spiders

This type of displacement basically consists of “floating” in the air through silk threads. That is, the air pushes the silk thread and the spider will hang from it in the air. The spider is usually placed in an elevated area, aims the opisthosoma (“abdomen”) upward and expels the thread… A timely blast of air … Read moreBallooning or the flight of spiders

The UFO investigations of the Pentagon

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The Advanced Aerospace Threat Identification Program (AATIP) was a secret Pentagon program that lasted 5 years, from 2007 to 2012. With a budget of 22 million dollars, its objective was to identify unidentified aircraft that could be a threat to U.S. National Security. We know about it because his director, Luis Elizondo, leaked information in … Read moreThe UFO investigations of the Pentagon

The tricks of some insects to ensure offspring

Females can be fertilized by several males because the sperm share space once inside the female. As a result, different types of adaptations have appeared to ensure the reproductive success of males. Two types of adaptations can be distinguished: 1. TO ACHIEVE A PREFERENTIAL USE OF SPERM. The best known case is that of some … Read moreThe tricks of some insects to ensure offspring

The fake news algorithm

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Great minds of the 21st century such as Elon Musk or Stephen Hawking have already warned of the potential dangers of an Artificial Intelligence out of control. We may be on the verge of the first signs. The non-profit company OpenAI, responsible for the development and creation of AI beneficial to humanity, has decided to … Read moreThe fake news algorithm