Knowledge about the existence of hormones was relatively new in the early 1900’s, but scientists were extremely interested in these self-manufactured chemicals that arouse or depress us, that make us grow or sleep or have sex, etc etc etc . . . This early stage of endrocronology was a sort of Wild West, and earnest […]
Hormones and Organotherapy Read More »
Many Ancient and Medieval ideas about how the human body worked seem laughable now, but before the science of molecular biology developed, a lot of conclusions just had to be conjecture (fueled also by cultural and confirmation bias). And that’s why – well into the early modern era – many scientists believed that menstrual blood
Early Modern Medical Idea of the Female Vein Read More »
Here is Nero, being a jerk watching his mom Agrippina get dissected. He killed her as well, making him a double-jerk. But what might be surprising about this Medieval scene is that the actual dissection of cadavers was an okay and not-considered-jerk behavior – in the right circumstances, of course. For a long period, historians
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Here is an illustration of a human’s digestive system, as imagined by one Guido de Vigevano in 1345 CE. There’s a lot he got right here — esophagus, diaphragm, stomach, intestines, and sphincter. But there’s obviously also a lot of missing details, and so it’s not surprising that 14th-century ideas about digestion were similarly faulty.
Guido de Vigevano’s Illustrated Human Digestive System Read More »
In the Central Middle Ages (c.1050-1350), the big-boss philosophers were the scholastics, and this guy here was one of the biggest. May I introduce to you the Franciscan friar and famed developer of epistemology (the philosophy of how we know things), William of Ockham. He lived from 1285 to 1347 and settled in many different
William of Ockham and “Ockham’s Razor” Read More »
This is _The New York Times_ 1907 headline that sensationalized a science experiment by a man named Duncan Macdougall. He had decided to run a macabre series of tests to see whether a human soul had weight. Six volunteers close to death agreed to spend their last breaths on a scale in his medical office,
Does A Human Soul Have Weight? Read More »
The social distancing requirements of today are stressful, but are much less deadly than measures of combating disease in the Middle Ages. Our word “quarantine” comes from the Italian words “quaranta giorni” for forty days, which was a standard length of time that sick and infected people would be shut off from the healthy population.The
The Medieval Quarantine Response Read More »
Scientists are enabling us to save lives and hopefully prevent disaster in this COVID-19 pandemic — and coming up with big solutions to health problems is one of the main reasons their profession is so valuable. But for me there is another equally praiseworthy aspect: their contributions to unveiling the forces that shape our universe.
The First-Lady of Physics – Chien-Shiung Wu Read More »
This Ancient Roman wall painting shows an opulent domicile, and adorned a bedroom of a first-century BCE aristocrat. The plants in the scenery show a love of the natural world common in elite decor. We know that Romans of means took great thought in how they situated their estate homes, considering matters like which way
Ancient Roman Painted Wall Decor Read More »
In the Medieval and Early Modern periods, natural science blended with occult studies, and this is why the modern subject of chemistry arose out of the ancient practice of alchemy. This intermixing of the mysterious and the concrete can be illustrated by the concept of a Diana’s Tree.Diana was the Ancient Roman Goddess of the
Blending of Natural Sciences and Occult Studies Read More »
This Medieval map shows the northern and southern hemispheres, with the constellations drawn to represent the stars’ positions. Although it is likely ordinary Europeans could point out different patterns in the sky, you had to have elite training to be able to pass yourself off as a real star-gazer: it was totally normal for people
Medieval Map of the Hemispheres Read More »
This plague doctor mask from the Deutsches Historisches Museum was developed in the 17th century, and the prototype is usually attributed to the French physician Charles de Lorne. It was not worn during the infamous Black Death pandemic of the 14th century, but rather a couple centuries afterward: for instance, during an outbreak in 1656
Plague Doctor Mask Read More »
You are looking at a highly sophisticated mnemonic devise representing ideas about the nature of reality crafted by one of the most famous thinkers killed by the Catholic Church for heresy. Giordano Bruno (1548-1600) is well-known for refusing to recant his ideas in the face of the Inquisition. Many notions he favored ultimately found support
Mnemonic Devices on the Nature of Reality Read More »
This might be a photo that repells at first glance — the hospital ward has long rows of undifferentiated beds, and they are surrounded by brick dehumanizing walls. In the final years of the Second World War, this ward in the hospital of Fatebenefratelli contained men, women, and children who were diagnosed with a disease
World War II and Syndrome K Read More »
Get ready to geek out here, because I am going to sing praises for the ways molecular chemical analysis is helping historians understand more clearly how people saw and created art in Medieval Europe. This first slide here is part of a cover page for a new paper published in _Scientific Advances_ which shows fabric
Scientific Explanations for Medieval European Colored Artwork Read More »
This little beauty is an artist’s rendition of a Placoderm – an extinct fish from close to 500 million years ago which had a significant feature that has played out into the lives of all humans today. Early fishes from this geological period had jaws, and evolutionary scientists have recognized jawed vertebrate fish as the
The Extinct Placoderm and Adaptive Immune Systems Read More »
We share the same genetic code with people from the Medieval past, and the basic way our brains take in sensory information is also the same. However, the cultural lens of the Middle Ages differs so greatly from our own that Medieval people interpreted the physical world in a vastly different way. This is true
Medieval Associations of Smells Read More »
Focus here, if you will, on the weird corn-on-the-cob part of this image. It features something most of us are unlikely to see, but which we all use every day: the pancreas. And it, like everything we encounter, has a history.The pancreas is hidden deep in the cavity of our guts, behind the stomach. It
The History of the Pancreas Read More »
You are not looking at a LGBTQ pride rainbow after a drinking binge. Nope, instead this image is an artistic representation of a type of nucleic acid arrangement called a RIBOZYME, and it perhaps is key to understanding some of the earliest history of all: the history of the origins of life.We learned in Middle
Nucleic Acid Ribozyme Arrangement Read More »
Carved out of marble in the first century CE, this Ancient Roman sculpture is one of the world’s most famous works of art. It showcases a tragic moment in the myth of Lacoon and his sons, when, in revenge for trying to alert the Ancient Trojans about a giant horse armed with secret enemies of
The Tragedy of Lacoon and the “Snake Detection Hypothesis” Read More »
