The link between the Bluetooth technology and vikings

bluetooth y vikingos - tecnologia bluetooth-harald blatant-harald bluetooth-historia de vikingos-runas-Jim Kardach

It seems that we are referring to the Pleistocene if we consider that 32 years ago, in 1989, the idea of the Bluetooth technology emerged, a wireless networking system designed to connect devices of all kinds with each other, to somehow unify technology. The Swedes Nils Rydbeck and Johan Ullman of Ericsson Mobile were the … Read more

“Walpurgisnacht”: the witches’ night

noche de walpurgis-walpurgisnacht-brujas-brujeria-noche bruja-satanismo-aquelarre-sabbat

I imagine you are all prepared for this unique night. What is going to be celebrated? Today is the “witches’ night”, one of the most important festivities of the witches’ calendar in Northern Europe. On this night, one of the most intense and frightening witches’ sabbaths of the year takes place at the Brocken Peak … Read more

Types of snakes according to their fangs

vibora-serpiente cascabel-serpiente solenoglifa-colmillo-veneno-tipos de serpiente-denticion serpientes

Snakes have often been associated with evil, either for cultural reasons or, directly, because of our survival instinct. We fear and respect them and the venom they use to hunt and defend themselves. However, as it usually happens, fear is diluted when our knowledge about them increases. In fact, they are not all equally poisonous … Read more

The cunning trickery of Ophrys orchids

ophrys apifera - engaño de orquideas-mimetismo-orquideas que engañan a abejas-orquidea ophrys

Life has devised a multitude of strategies to adapt and survive, such as mimesis. We all quickly think of examples from the animal kingdom, such as syrphids, some caterpillars, various butterflies or spiders that resemble ants. However, plants are not far behind. Orchids of the genus Ophrys sp. are true works of art of nature. … Read more

Electrical therapies in ancient times

escribonio largo-medicina en la antiguedad-electroterapia-roma-romanos-grecia-griegos-platon-aristoteles-pez torpedo-raya electrica-pez gato electrico del nilo-Malopterurus electricus-gota-dolores de cabeza-prolapso anal-dioscorides-galeno

Most of us are familiar with or have heard of electricity-based therapies. They are used in a wide range of medical disciplines: neurology, psychiatry, physical medicine, rehabilitation… Logically, we consider these techniques an advance of the modern world, because if electricity had not been discovered, they could not exist. It is true that electricity is … Read more

The explosive beetles

escarabajo escopetero - zoologia - brachinus - escarabajo - insecto - escarabajo bombardero - reaccion quimica - quimica - disparo irritante - biodiversidad - naturaleza

Nature is the best weapon engineer. Some living beings are equipped with a series of strategies and tools that it’s difficult to imagine they were generated by chance. In fact, devotees of creationism and intelligent design use these examples to vindicate their beliefs. Let’s look at the case of the carabid beetles of the genus … Read more

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

vacunas-sars cov 2-coronavirus-covid 19-virus-pandemia-ADN-ADN recombinante-vacuna de ARNm-ARN mensajero-mutaciones-sistema inmune-sistema inmunitario-inflamacion-linfocitos-linfocito T-linfocito B-macrofago-antigeno-inmunidad-memoria

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

satanas-demonio-diablo-hombre arbol-autorretrato-infierno musical-infierno-jardin de las delicias

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

Zombies in the First World War

primera guerra mundial-i guerra mundial-el ataque de los hombres muertos-sabaton-musica-power metal-attack of the dead men-rusia-alemania-osowiec-polonia-quimica-armas quimicas

On August 6, 1915, one of the worst atrocities that characterized the First World War occurred. A troop of 7000 Germans had been trying for months to besiege the Osowiec Fortress in northeastern Poland. 900 Russian and Polish fighters were stationed behind its walls. Field Marshal Paul von Hindenburg, knowing of the shortage of gas … Read more

The Armenian lycanthropes

heavy metal-musica-power metal-powerwolf-werewolves of armenia-bible of the beast-metal-rock-armenia-hombre lobo-licantropoo-mito-mitologia armenia-mitologia-mujer lobo-espiritus-mardagayl

The werewolf is a universal myth. Several cultures around the world have it as another creature of their mythological staff. There is something about the wolf that fascinates us. Perhaps it is its fierceness, its loyalty, its beauty. The werewolf is found even in the most remote places for the western people, like Armenia. Although … Read more

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

jardin de las delicias-el bosco-hieronymus bosch - jheronimus bosch - jardin del eden - paraiso- biblia

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

peste negra-muerte negra-edad media-peste septicemica-peste neumonica-peste bubonica-doctor de la peste-justiniano-yersinia pestis-ratas-pulga

“¡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