If I had more time, I would read original treatises in mathematics. The reason is because — when I do get a chance to go over such writings — it is so much clearer to me that math isn’t just a bunch of static pronouncements that everyone agrees about, but a conversation built on emergent […]
Bhāskara II and the Pythagorean Theorem Read More »
I have a new historical figure that I want to invite to my imaginary dinner party with fascinating but dead people I wish I could talk to. And that’s this guy, Karl Pearson. A British Germanophile who lived from 1857-1936, Karl was a quirky, free-thinking mathematical giant in the field of statistics. He had a
Here are fine specimens of an unusual plant called ghost pipes (sometimes Indian pipes), or Monotropa uniflora (“one-turn one-flower”). Although they grow on three continents (both Americas and Asia), the conditions they require are not simple to come by and they cannot be cultivated. Ghost pipes lack chlorophyll, something all plants require, and so these
Things very old and very new feature prominently in this newly-released image from the James Webb Space Telescope. Going by the catchy name “Cosmic Cliffs,” this is an edge of a section of a nebula (the Carina Nebula, to be exact, appearing in our southern hemisphere) known as NGC 3324, first identified by James Dunlop
The limestone rocks that form the bedrock of the Bois Païolive come from the Jurassic Period, 180 million years ago. Aeons of erosion created unusual rock outcroppings, which the French government back in 1934 declared to be an ecologically protected area. There is incredible biodiversity in the Païolive, but the most notable trees are the
I love that as I get ready to write up my syllabi for this coming fall semester, perhaps a wee bit wistful of my fabulous summer coming to an end, I am reading about a time in the early 20th century when teaching college students was a lot more stressful. And that’s where the great
Conical Rebellions Read More »
Behold the Cairo Toe, the earliest surviving prosthesis ever made. About 3,000 years ago in an Ancient Egyptian chamber lying west of Luxor, Egypt, a high-status woman was buried, and accompanying her remains was an artificial big toe made of leather and wood to fill in for a missing digit. The site was at Sheikh
This is Hertha Ayerton, a British Engineer whose discoveries unveiled mysteries about the behavior of electricity and helped develop technology to protect soldiers in the trenches of the First World War from poisonous gasses. Sarah Phoebe Banks was born in 1854 to a family of eight children, her father dying when she was just eight.
Although my posts for the next few weeks are mostly going to be repeats as the website gets built, I couldn’t help but write up this story about willow tree bark and aspirin. Dear reader, you, like me, may have been under the impression that for millennia, people in different parts of the world relied
Willow Bark Medicine Read More »
The Robledo Mountains lie to the north of Las Cruces, New Mexico, and to the east of the Rio Grande continental rift. Much of the exposed rock is from about 280 million years ago (Paleozoic), and the geological footprint is obvious and amazing. You can see a slot canyon in most of these pictures, when
These statues are some of the remaining examples of “mushroom stones” from the Ancient Maya people. They testify to the usage of psilocybin by indigenous Central Americans that goes back hundreds of years. The second photo shows a real-life example, called Psilocybe Mexicana. The Central American consumption of hallucinogenic mushrooms for ritual purposes was brought
Hallucinogenic Mushrooms for Central American Rituals Read More »
These photos taken last weekend show vistas along the Loyalsocks Trail, one of the many stunning forested hiking pathways in Pennsylvania. Taking its name from the Loyalsock Creek (which translates from an American Indian name for “middle” creek), the Loyalsock trail is nearly sixty miles. The portions shown here include Sones Pond, which was built
These figures painted in the Manda Guéli Cave in central Africa in prehistoric times show humans amidst animals they have domesticated. They illustrate the importance of pastoralism in human history, which isn’t just something that changed some people’s food supply (instead of foraged plants and animals, pastoralists focus on the nutrients from their domesticated beasts).
Pre-History Lactose Tolerance Read More »
Flick through these three images, dear readers, and you will observe something that scholars have been looking for for over 2,000 years — finally brought to light via a student class project, the COVID lockdowns, and state-of-the-art multispectral imaging. It is the oldest star map of the universe. The manuscript you see is the _Codex
Codex Climaci Rescriptus Read More »
London’s East Smithfield Cemetery made news this week because of a recent study suggesting that the Medieval Black Death provided impetus for human evolution in a way that shapes many of our genomes today. With the advent of technology that allows for whole genome analysis of the dead, scientists and historians decided to exhume skeletons
The Black Death and Genetics Read More »
Finding a more arcane and mysterious text than the Voynich Manuscript would be difficult. Written in 1420, the script has thwarted the world’s best cryptogrographers – linguists have failed alongside computer A.I specialists to decode the 200-page book. Just yesterday a story broke that a British linguist has solved the code – he claims the
The Voynich Manuscript Read More »
Here are four rats rowing a tiny boat, painted in a 14th-century French book. Such an image calls to mind the rats that spread the plague bacterium Yersinia pestis during the worst pandemic in human history: the Black Death. The theory goes that rats carrying the infected fleas spread the bubonic plague that ended up
Twenty-one years ago in 2001, the Burd Run Nature Trail and Restoration was established to reverse the damaging effects of an artificially straightened stream channel which had caused erosion and environmental degradation. (See second image). Shippensburg University (particularly the Geography and Earth Science Department), Shippensburg Township, the Cumberland County Conservation District, and the Conodoguinet Creek
Burd Run Restoration Read More »
The two pictures in this post seem to have nothing to do with each other, but they are connected by a surprising history: “white gold,” aka guano, i.e. bird excrement. This stuff once drove human cultures in these now depopulated areas. The first image shows the Atacama Desert of Chile, the driest non-polar desert in
My science feeds are abuzz with the story behind an article published this month of November 2022 in _Nature Ecology & Evolution_ that redates a human invention — deliberate cooking of food — to 780,000 years ago, long before Homo sapiens evolved. The species Homo erectus (see first image) is the likeliest human ancestor that
Homo Erectus Cooking Read More »
