science

The Horses of the Middle Ages

Everyone knows that the Medieval aristocracy was famed for the way they promoted the military prowess of knights on horseback. Gargantuan sums of money were spent selecting, breeding, and caring for war horses that could show off the status of their aristocratic riders. There is, therefore, a certain amount of glee to be taken by […]

The Horses of the Middle Ages Read More »

a person stands in a large excavation pit. there is a blue arrow drawn to point at the ground

Fire and Evolution

The Ancient Greeks were right to have the story of how Prometheus brought fire to the human race front-and-center in their mythology. Fire is an amazing thing — most vertebrates flee from it when it happens in the natural world. But we humans learned to control it, and that revolutionized our existence. The control of

Fire and Evolution Read More »

stone tomb with engravings in Hebrew. two hands are carved in a fashion that resembles the Vulcan salute that was popularized by the Star Trek shows and films

The Jewish Origins of the Vulcan Greeting

See the Vulcan “live long and prosper” sign on this tombstone from 1819? It really is, and this isn’t like the History Channel’s claims that aliens built the pyramids. But Spock, rather, borrowed from an actual human custom originating in Jewish tradition. Leonard Nimoy’s hand signal is half of a sacred gesture made by the

The Jewish Origins of the Vulcan Greeting Read More »

woodcut print of earth centric and sun centric views of the solar system. inscribed with PTOLEMAEUS and COPERNICUS

Giodano Bruno, the Doomed Philosopher

Ah, the poor doomed philosopher Giordano Bruno. Whereas Galileo had been allowed to live after recanting his astronomical views that ran counter to Roman Catholic teachings, Bruno — himself a Dominican friar — was executed by the Church in 1600. His death and his willingness to buck the Catholic Church’s stranglehold on acceptable views about

Giodano Bruno, the Doomed Philosopher Read More »

Hasan Ibn al-Haytham and the Scientific Method

Take a guess as to what this Medieval illustration is a drawing of: upside-down fallopian tubes? Sea-creatures? Mirror-image diagrams of some planetary motion? The answer is below, but before you look — ask yourself how you are arriving at your guesses. The process of investigative inquiry to figure out the nature of reality is something

Hasan Ibn al-Haytham and the Scientific Method Read More »

severed bones attributed to deliberate amputations

Amputations in the Eastern Zhao Dynasty

Paleo-anthropologists have recently analyzed the skeletons of two humans dating over 2,300 years ago from Ancient China which suggest that deliberate amputation of the limbs of one leg might have been done as a type of legal punishment. The skeletons came from the former Eastern Zhou Dynasty (771-256 BCE) near the modern city of Sanmenxia.

Amputations in the Eastern Zhao Dynasty Read More »

painting of six figures dancing and playing instruments in a line

The Dancing Disease

This painting by the Early Modern European artist Pieter Brueghel the Younger shows a line of dancers, but they don’t look like they are having that much fun — for instance, the two women in the center are staring off into space, not paying attention to the musicians in their path. And that’s because they

The Dancing Disease Read More »

reconstructed skull of ardipethicus ramidus

Ardipithecus ramidus

In the US, Mother’s Day is this Sunday, so I thought it appropriate to introduce this fine specimen, representative of what many Paleo-anthropologists consider the earliest known mother of all hominids (including us Homo sapiens). This is the Ardipithecus ramidus, and she lived about 4.4 million years ago in what is now modern Ethiopia. Her

Ardipithecus ramidus Read More »

design from medieval manuscript depicting the positions of the earth, moon, and sun during the solar eclipse

The Solar Eclipse

Yesterday, I was fortunate to experience the full solar eclipse from the Pymatuning State Park Reservoir in western Pennsylvania. The light turned silvery as the sun neared total obfuscation, and green colors emerged and reds dimmed, the effect of our eyes’ cones coming offline and employing the rods more. Shadows close to the ground sharpened

The Solar Eclipse Read More »

Cosmic Cliffs

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

Cosmic Cliffs Read More »