Signore Galilei

This past week, there was a total solar eclipse, visible from a path stretching along far northern Russia, Greenland, Iceland, and Spain. Like many of this year's eclipse chasers, I was clouded out - though I did have a lovely couple minutes of darkness o

Today is August 4th, 2026. Today is the original setting of Ray Bradbury's short story "There Will Come Soft Rains" from The Martian Chronicles.1 Bradbury himself once described this story as best representing the essence of his work,2 and I know of no st

You might already know that atoms are mostly empty space. Physical size behaves a bit weirdly at the atomic scale, but essentially the radius of an atom's nucleus is tens of thousands of times smaller than the radius of an electron's orbital. That's the s

We all learned in science class that water freezes at 0 C or 32 F at atmospheric pressure. But what water, exactly? Even after you distill out all the dissolved salts and minerals to get pure H2O, not all H2O is created equal - and for the most precise te

Let's consider a person you don't know. Maybe they live in the Republic of the Congo. Let's say they're near a city - not the country's biggest city, but maybe its 5th biggest city. I don't know that city's name, but I could probably look it up. And they'

Last week, we looked at some other things besides the USA that are turning 250 in 2026. As promised, here are a few more: The Dominguez-Escalante expedition Atanasio Dominguez and Silvestre Vélez de Escalante were two priests from New Spain, who set out o

This year, we celebrated the 250th anniversary of the Declaration of Independence, the final text of which was ratified by the Second Continental Congress on July 4th, 1776. The year 1776 has become synonymous with the United States of America, but there

Backstory time: there's a whole subreddit dedicated to maps without New Zealand. It's an unfortunately large category. Most maps are like this one from the 404 page of New Zealand's government: Years ago, someone made a joke post that was just a map of th

For some of us, our Roman Empire actually is the Roman Empire. As far as pre-modern states go, the Roman Empire was incredibly powerful, culturally influential, and well documented. Rome's expansion shaped Europe, and Europe's shaped the world. So when di

Picture this: the world's top scientists are all telling the US government that a brand new technology is an existential threat to humanity. The president listens, and even agrees. The American government, currently a few years ahead of its rivals, propos