The SARS-CoV-2 vaccines. Part 2: Lights and shadows of vaccines

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In the face of the current situation, which will undoubtedly mark humanity forever, a race against time has been generated to try to overcome it as quickly as possible. Not in vain, in less than a year it has shown us how vulnerable we are, but also our resilience. The most promising weapons with which … Read more

The SARS-CoV-2 vaccines. Part 1: The mechanisms of vaccines

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Is the end of the pandemic near? Is SARS-CoV-2, the same one that has shown how fragile the egomaniacal Homo sapiens and his civilization are, giving its last breath? Will the longed-for vaccines end with this science-fiction situation? The vaccines are being presented as the definitive solution to our problems, the definitive weapon that will … Read more

The origin of nativity scenes

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The nativity scene tradition has become a true artistic expression. There are orthodox and heterodox nativity scenes worthy of admiration for their level of detail and complexity, not to mention the exquisite craftsmanship of some of their figures. Where does it come from? When did we start representing the events surrounding the birth of Jesus … Read more

“Smokescreen”: An expression with a military history

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“Smokescreens” are a strategy increasingly employed by politicians and the media to divert mass attention away from the truly important things and hide them. The expression has, therefore, a metaphorical use today, but not long ago it was used (and still is) in the military field to confuse adversaries and acquire strategic advantage. Let us … Read more

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

Deciphering the Garden of Earthly Delights. Part 4: The secrets of the musical Hell

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It is a Dantesque place. The darkness has taken over the whole scene. Small glimpses of light can hardly be seen, only that emitted by fires and flames. It is a terrifying place, colonized by strange diabolic beings, made up of the most unimaginably extravagant mixtures. Humans suffer in various ways. They are the victims … Read more

Deciphering the Garden of Earthly Delights. Part 3: The Garden of Lust

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Let’s turn another page in our peculiar illuminated book. Be careful, because what is coming now is not easy to digest. We reach the central table, the heart of the triptych, the purest entropy. Our eyes do not know where to go. There are too many characters and actions. Too many explosive colors violently penetrate … 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

Deciphering the Garden of Earthly Delights. Part 1: The prelude to disaster

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Everyone knows it. It’s been an icon, like its author, of the collective unconscious for centuries. For some people, it’s the only work they know of Bosch. That speaks of his more than deserved fame. It leaves no one indifferent. Since its conclusion, many have tried to decipher it, to reach its code, to reach … 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