The crosswords that almost ruined the Normandy landing

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D-Day, Operation Overlord, the Normandy landing. They are all synonymous referring to the most famous military operation of World War II that largely determined the final outcome of the greatest war in history. It began to be conceived as early as 1943 by Winston Churchill and Franklin D. Roosevelt, although they had to wait until … Read more

Six curiosities you didn’t know about Venus

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Venus is considered the brother planet of the Earth. However, since their births they have followed different trajectories that have led them to very different destinies. The current atmosphere of Venus is composed of 96.5% carbon dioxide. Toxic clouds of sulfur dioxide travel rapidly through it. But Venus has not always been so unwelcoming. It … Read more

The 5 most important facts about the plague you should know

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“¡How many brave men, how many beautiful women, how many gallant young men whom Galen, Hippocrates, or Aesculapius would have judged to be very healthy, ate breakfast with their relatives, companions, and friends, and in the evening dined with their ancestors in the other world!” – The Decameron, Bocaccio 1. The disease can occur in … Read more

The sighting that made UFOs famous

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June 24, 1947. A turning point occurred. The phenomenon of Unidentified Flying Objects gained its eternal fame. All the films, books, series and other elements of the popular culture inspired by UFOs have their origin in that very moment. The pilot Kenneth Arnold was flying over Mount Rainier in Washington State that day, looking for … Read more

Boundary layer: a tool to protect against the cold

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Endotherms, like mammals and birds, mainly use two methods to minimize heat loss by convection in cold environments: .Increasing heat production Reducing heat loss by increasing the efficiency of the insulation, but how? By empowering the BOUNDARY LAYER. The boundary layer is a layer of fluid (water or air) adjacent to the surface of an … Read more

Eugene Shoemaker, the only human being that rests on the moon

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Although his life was extinguished prematurely in a tragic car accident in 1997, we can assure that Eugene Merle Shoemaker had a full life. He was able to do everything he ever dreamed of. An early intellect allowed him to enter college at age 16, and not just any college, but the prestigious California Institute … Read more

Human races are nonexistent. The farce of racism

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Let’s be clear from the beginning: racism is an invention of human stupidity. If we think about it, there is nothing more absurd and simplistic than attributing someone an intellectual or innate inferiority because of their morphology or ethnicity. Racism is a belief based on a single principle: that within the human species, population subsets … Read more

Jasper Maskelyne, the magician who fooled the Nazis

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He was a little-known British illusionist, unlike his father and grandfather. That’s probably why Jasper enlisted in World War II, to exploit his skills as an illusionist with which he didn’t succeed in England. He would not use weapons against the Germans, but cunning and illusionism. His most famous interventions occurred while he was stationed … Read more

A blood sacrifice to invoke Slenderman

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Slenderman is a character born on the Internet, a “creepypasta” (a neologism derived from the computer command “copy-paste”). We could say that he is the personification of some of our most atavistic fears, such as the fear of being watched by someone or something we cannot see, one of the pillars of our survival instinct. … Read more

What did Einstein mean by “God does not play dice with the universe”?

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Albert Einstein, the genius par excellence, said many remarkable things throughout his busy life. But one of his best-known and most misunderstood quotes is the following one, which he left written in a letter to his colleague the mathematician Max Born: “Quantum mechanics is certainly imposing. But an inner voice tells me that it is … Read more

Is “La Gioconda” Leonardo’s mother?

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Pacifica Brandano, Isabella Gualanda, Constanza d’Avalos, Isabela de Aragón or Leonardo da Vinci himself have been some of the alternatives used to find out the true identity of the woman with the mysterious “sfumatta” smile between layers of paint. The “woman of the eternal mystery” we could call her, since the authentic model whose effigy … Read more