5 curiosities you didn’t know about the Apollo 11 mission

apolo 11-carrera espacial- neil armstrong -5 curiosidades que no sabias - cinco curiosidades que no sabias - error en el logo - luna- mision lunar- buzz aldrin- primer hombre en orinar en la luna- primer hombre que piso la luna- llegada a la luna

Although today we remember it as an honorable and impressive episode, the truth is that stress and anguish predominated in the Apollo 11 mission. The odds of returning from the Moon safely were really low. Maybe that’s why president Richard Nixon preferred to watch his back by having a memo written entitled In Event of … Read more

Some curiosities about the skin

organo mas grande-capas de la piel-funciones piel-termorregulacion piel-funcion excretora-curiosidades de la piel-epidermis-dermis

The skin is the largest organ of all vertebrates. Its main functions are: Protective (in terrestrial vertebrates it protects from drying out as well). Sensitive or sensory:  perception of pressure, temperature, vibration… Excretory: elimination of waste substances. In some vertebrates it also participates in thermoregulation and water balance through sweating and vasodilatation-vasoconstriction. For example, when it … Read more

The penis of female hyenas

hiena-pene-hembra

This occurs in the spotted hyena (Crocuta crocuta), whose females are more aggressive and dominant than males. They possess a false penis and scrotum (pseudo penis and pseudo scrotum). However, the truth is that they have an enlarged clitoris shaped like a penis actually, which is erectile and used to urinate. And the vaginal lips … Read more

The Spanish bogeyman was real

hombre del saco-sacamantecas-historias-terror-francisco-leona-asesinatos-cronica-negra-asesinos-grasa

Some superstitions hurt… a lot. One of them was the origin of the children’s horror story that was used in Spain to control the behaviour of the children and which, most likely, has caused too many nightmares in several people. Under the succinct threat of “I’ll call the bogeyman!”, children had no choice but to … Read more

The world’s smallest deer: the pudú

pudu-mephistophiles-norteño-ciencia-animales-zoologia-biodiversidad-ciervo-cervidos

Pudu mephistophiles or Northern pudú It is the smallest deer (family Cervidae) in the world. It does not exceed 35 cm in height and 70 cm in length, and weighs between 3.3-6 kg. It lives in the high and cold steppes of the Colombian, Ecuadorian and Peruvian Andes. Its trunk is brown, the neck is … Read more

The fire that devastated the Prado Museum

museo-prado-madrid-cuadros-goya-bosco-incendio-mariano-de-cavia-historia

A tragic last minute news slipped into the inner pages of the newspaper El Liberal on the early morning of November 25, 1891: Last night’s catastrophe. Spain is in mourning. Fire at the Museum of Paintings, said the headline. The Prado Museum was burning violently. People crowded in front of that infernal spectacle. Wailing, crying, … Read more

The smallest african viverrid

mangosta-enana-Helogale-parvula

The Common Dwarf Mongoose  (Helogale parvula) is the smallest viverrid of the Afican continent. Viverrids are a family of carnivorous mammals that includes civets, ginets, mongooses and alike. Its small body barely reaches 30 cm in length, with a weight that usually does not reach 300 g. The tail can measure between 12-20 cm. Its … Read more

The prodigies that originated the Christmas tradition of hanging socks in the chimney

san-nicolas-bari-myra-patara-turquia-navidad-mitos-historia-calcetines-regalos-santa-claus-papa-noel

In many countries, families hang socks on or near chimneys for Santa Claus to fill them with gifts. Well, this tradition would have its origin in the generosity of the real Santa Claus. St. Nicholas of Myra or Bari was a bishop from Turkey. He was born in Patara in the 3rd century A.D. in … Read more

The seedless watermelon IS NOT transgenic

alimentacion-sandia-sin-pepitas-semillas-genetica-transgenicos-alimentacion-diploide-triploide-tetraploide

It’s probably one of the most common table talk conversations of the summer. When a watermelon is cut and the seeds are not perceived, a suspicion, a worry, a distrust, even a fear emanates from us. It seems unnatural, scientific witchcraft. The term “transgenic” will come out disdainfully and quickly from the person who has … Read more

The giant fake “mosquito”

tipulido-diptero-zoologia-biologia-mosquito-animales-insectos

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 mythical origin of the Dollar sign

columnas-hercules-dolar-españa-plus-ultra-estados-unidos-simbolos-simbologia

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 most lethal living being on Earth

animales-medusas-avispa-de-mar-chironex-fleckeri-zoologia-ciencia-veneno-letal

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 uncanny valley effect of robots

sophia-robots-tecnologia-i.a.-androides-efecto-valle-inquietante

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

Why do bees die after stinging?

abejas-bichos-insectos-himenopteros-biologia-zoologia-animales-curiosidades-evisceracion-aguijon

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

The “false” surname of Miguel de Cervantes

miguel-cervantes-saavedra-quijote-literatura-argel-piratas

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 cause of the smell of damp soil

microbiologia-biologia-bacterias-strpetomyces-coelicolor-tierra-mojada-ciencia-petricor-geosmina-quimica

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