The first known person to discover an element relied on pee and actually was looking for the Philosopher’s Stone. Henning Brand used up the financial resources of three people – himself, his first wife, and his second wife – in the focused pursuit of finding a way to turn base metals into gold. Alchemy favored […]
Alchemist Henning Brand and Phosphorous Read More »
Squint a bit, and you will be able to see things that look like white circles along a horizontal axis in the center of this photo. They are not raindrops, but six of the twenty-seven enormous radio telescopes that make up the Very Large Array. Located on a remote plain off Highway 60 in central
Very Large Array Telescopes of New Mexico Read More »
Astrolabes were the medieval version of a GPS. Although still fashioned today in various manifestations, the most famous versions were those created by Muslim scientists living in the Medieval Middle East. If you’ve ever seen one, this photo from the Islamic world circa 1480 CE might look different: usually astrolabes were two-dimensional celestial spheres. I
Medieval Middle Eastern Astrolabes Read More »
Death by hanging was practiced in the UK until the abolition of the death penalty in 1964/5. Those who befell this execution did not all die easily, sometimes gasping for breath for a quarter of an hour before their lives mercifully ended. This is why the contraption invented by a man from Early Modern England,
Early Modern European Death Penalties Read More »
This mother chimpanzee is using stones to crack open a nut, as a child watches and learns. The skill-level needed for this operation is difficult (finding the right anvil-shaped stone, using another proper-sized stone to bang, learning how to position the nut, etc), and it will be until the young chimp is about six before
Chimpanzee’s Development of Stone-Age Technology Read More »
This is one of fifty copies left of the Gutenberg Bible, printed over 650 years ago. The volume symbolises a revolution in information transfer, because its movable type enabled the quick printing of books. Despite the forward-looking aspects of the Gutenberg Bible, it also symbolizes the Medieval culture from which it came. For instance, about
The First Mass Printed Medieval Book – The Gutenberg Bible Read More »
A strange relationship between mathematics and the occult began early on in Western history, and some of the most advanced intellectual minds fostered the study of numbers primarily as a stepping stone for understanding hidden truths about the physical world. This tendancy goes as far back as Pythagoras, but flourished notably in Early Modern Europe.
John Napier and the Relationship of Math and Occults Read More »
Leaders in the European Middle Ages issued coins as a kind of aspirational statement of stable power. After all, currency is only as successful as a community’s faith in its worth. But what happens when a leader goes out of favor, or dies? This is a photo of coins issued by two English kings, one
European Middle Age Coins of Power Read More »
This stained-glass window from the Royal Society of London shows the Latin motto of one of the world’s most important science institutions: “NULLIUS IN VERBA,” which means “take nobody’s word for it.” This admonition is a central premise of the scientific method, stressing that knowledge should not be determined by unproven authority and confirmation bias.
The Royal Society of London Read More »
This illustration is the best I can do to represent American scientist Eunice Foote, since no extant images of her remain. This is a shame, because Foote was the first scientist to analyze the composition of gasses to predict what we now call the Greenhouse Effect. In 1856, hundreds of scientists were in attendance at
Eunice Foote and the Greenhouse Effect Read More »
You are looking at Pinchot Lake, the defining geographical feature of the Gifford Pinchot State Park. A short drive south from the Harrisburg state capital, this recreational area is named after America’s famed environmental conservationist. Gifford Pinchot (1865-1946) worked with the likes of Theodore Roosevelt and female conservationist Mira Lloyd Dock to promote the
Gifford Pinchot and His Support of Environmental Conservation Read More »
On a lovely January morning, I walked the LeTorte trail, which runs along the eponymous nature preserve. LeTorte’s name comes from an early 18th-century French-Swiss explorer who built cabins in the area after receiving the land from William Penn. James and his wife Ann fought with the American Indians (probably Shawnee) in 1720, but
Pennsylvania’s LeTorte Trail Read More »
An idea is only as influential as a society is able to appreciate. The invention of the steam engine bears this truth out. Here you see an “aeolipile,” described in the first century CE most notably by Hero of Alexandria (d. 70 CE). In the first image is a drawing of his machine – so
The Aeolipile Machine as the First Steam Engine Read More »
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 »
Ada Lovelace (d. 1852) lived a supremely Victorian aristocratic life: multiple estates, famous friends, and noble title? :check. Tragic illnesses that caused her to be bedridden and/or die young? : check. Relatives concerned with her propriety despite having an adventurous and spirited personality? : also, check. Called “The Enchantress of Number” by her friend and
Ada Lovelace – “The Enchantress of Numbers” 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 »
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 »
As the days of quarantine add up, many of us have expressed a strange sense of time becoming blurred — the hours we used to divide with our old routines have been upended, and our unchanging surroundings can sometimes make the feeling of time feel less progressive. In fact, of course, the external physical world
Wells Cathedral Clock in England 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 »
