The giant fake “mosquito”

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More than one has been shocked after seen these alleged mosquitoes. They look like imposing and huge mosquitoes, but in fact they are Diptera of the Tipulidae family, also known as crain flies. True mosquitoes are also Diptera but they belong to the Culicidae family. They are thin, delicate-looking insects with long and thin legs, … Read more The giant fake “mosquito”

The mythical origin of the Dollar sign

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Since the last century, the Dollar has been the reference currency of the international economic system. Its sign is unmistakable and inseparable from the contemporary world. It personifies wealth, power, possession and even an entire country. A very simple character in appearance: an S crossed by two vertical bars (although its variant reduced to an … Read more The mythical origin of the Dollar sign

The most lethal living being on Earth

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This is the sea wasp or box jellyfish, Chironex fleckeri, a kind of jellyfish of the Cubozoa class: It inhabits shallow, turbid oceanic waters of Australia and Southeast Asia (although during the breeding season and polyp phase they can be found in rivers). The bell (“body”) is cube-shaped and translucid (Φ15-24cm). From each of the … Read more The most lethal living being on Earth

Nazi secret weapons (part 2). Die Glocke, the antigravity bell

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We continue to expose some examples of the German Wunderwaffen from World War II. As with the ones we saw in the previous post, many of these new exponents were never built, or only reached the test phase at the most. Even so, they are still fabulous and impressive. If the reader has already been … Read more Nazi secret weapons (part 2). Die Glocke, the antigravity bell

The uncanny valley effect of robots

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Machines have become an indispensable tool for humans, to the point that some of them have become practically another extremity of our organisms, both literally and metaphorically if we refer to our indispensable mobile phone. Some of them already reproduce our anatomy, physiognomy and behaviour with a sinister realism, perhaps to make them more familiar … Read more The uncanny valley effect of robots

Manowar’s Guinness records

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Many Heavy Metal lovers have their hair bristle when they hear the name of Manowar. Currently formed by Eric Adams, Joey DeMaio, Anders Johansson and E. V. Martel, they are experts in the creation of authentic musical hymns, celebrated and extolled all over the world, not in vain have sold nearly 10 million records. But … Read more Manowar’s Guinness records

Why do bees die after stinging?

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Only worker bees sting when they are in a desperate situation, but not all bee species sting. The stinger is a hollow tube through which the poison passes and that is attached to some internal organs. Apart from the poison, it is important to remove the stinger immediately because when the bee stings, it releases … Read more Why do bees die after stinging?

The fastest primate

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It is the patas monkey: Erythrocebus patas. This Old World Monkey is the fastest primate, since it can reach  56 km/h running. Males of this species weigh about 10 kg and females about 6 kg. Their legs and tails are long. They have a reddish-brown hair with lighter and darker areas. This species lives in … Read more The fastest primate

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 more Nazi 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 more The “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 more The 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 more A 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 more When 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 more The 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 more When 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 more Ireland. 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 more The 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 more Ireland. Experiences in legendary lands (part 3). Brief foray into the history of Ireland and visit to Belfast