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3 Random Tidbits

Topic:
Wisdom Builder
Timeless ideas at the intersections of science, philosophy, critical thinking, and history.

Wisdom Builder.

3 random tidbits in about 5 minutes.

1.

A History FAQ.

Subject: Copernicus.

Today, Nicolas Copernicus is one of the most famous people in science history, but he was not famous during his lifetime. His seminal work, On the Revolutions of the Heavenly Spheres, put the Sun at the center of the universe when most in Europe believed the Earth was flat. It remained unpublished during his lifetime. It was only on his deathbed in 1543 that he arranged for its publication.

In chapter 14 of 30 Philosophers, I tell the story of the “dark” Middle Ages and continue the embrace of evolving labels. While I believe the adjective “dark” aptly describes Europe during this period. Historically, “Dark Ages” referred to an era of academic regression spanning from the end of the classic period to the renaissance. In the book, I put it this way:

“Europe during this era was “intellectually dark.” This occurs anytime a collective decides there can only be one story about the unknown and unknowable. Their story is correct, all others are wrong and must be purged, and anyone promoting other stories must be dealt with. The Middle Ages stand in stark contrast when compared to other times, before and after.”

Later, in chapter 21 I tell the story of the scientific revolution using the stories of Copernicus and Galileo. Galileo is perhaps most remembered for his house arrest by the Church. The chapter begins with a retelling of that classic tale, the story that birthed our modern cosmological model. The story of how the printing press allowed copies of Copernicus’ book to spread across the land despite multiple bans and burnings by the Church. The work persisted, eventually setting the stage for the Scientific Revolution. For the full story of human thought over the last 5,000 years, get your copy of 30 Philosophers today.

 


That History FAQ, 

was first published on TST 4 months ago.

 

2.

A History Story.

From History:
Subject: Legacy.
New Look

30 Phil, Chapter 14: The newly coined Holistic Eudaimonia is a new look that extends Aristotle’s thoughts on eudaimonia and living a virtuous life to legacy and ripples into the future. This more holistic approach includes the effects of actions on you, others, and the future. In the “good intent-good results” debate, it not only focuses on “good results,” it cultivates them.

 


That History Story, 

was first published on TST 2 years ago.

 

3.

A Science Story.

From History:
Subject: Bird Evolution.
~90 Million years ago (+/- 10 million).

Neornithes, or crown birds, are the branch that includes all living birds today. Once the “Crown Bird” body plan was perfected, it became an incredibly stable design.

From here, evolution did its thing. That means the ostrich, the chicken, and the house sparrow all belong here, along with every duck, eagle, hummingbird, penguin, and parrot alive now. In broad terms, living birds fall into three great groups within Neornithes: Palaeognathae (ostriches, emus, kiwis, and tinamous), Galloanserae (landfowl and waterfowl), and Neoaves (nearly all other living birds).

The deeper story comes from the genetic clock. DNA-based studies often suggest that crown birds began diverging well before the asteroid impact, with some major analyses placing the common ancestor of modern birds around 95 million years ago. That is why a timeline label such as ~90 mya ±10 million years is a fair, DNA-leaning estimate: it reflects the idea that the modern bird line may have already existed for tens of millions of years before the end-Cretaceous extinction, even if those early crown birds did not yet look like today’s familiar forms.

The fossil record, however, is what keeps the debate alive. The K–Pg extinction event happened about 66 million years ago, and the clearest Late Cretaceous fossils close to or within crown birds, such as Asteriornis from 66.8–66.7 mya and Vegavis from roughly 69.2–68.4 mya, sit right near that boundary. That leaves paleontologists still debating whether these dates reflect the true emergence of crown birds, their survival through the extinction, or simply the earliest fossils we have so far. In other words, the argument continues because the rocks point to a late appearance, while the clocks often hint at a deeper origin.

 


That Science Story, 

was first published on TST 2 months ago.

 

The end. Refresh for another set.

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