Posts from 2024

Computing the Eclipse: Astronomy in the Wolfram Language

See also:
“When Exactly Will the Eclipse Happen? A Multimillennium Tale of Computation” »

When Exactly Will the Eclipse Happen? A Multimillennium Tale of Computation

Computing the Eclipse: Astronomy in the Wolfram Language

Basic Eclipse Computation

It’s taken millennia to get to the point where it’s possible to accurately compute eclipses. But now—as a tiny part of making “everything in the world” computable—computation about eclipses is just a built-in feature of the Wolfram Language.

The core function is SolarEclipse. By default, SolarEclipse tells us the time of the next solar eclipse from now:

Continue reading

Remembering the Improbable Life of Ed Fredkin (1934–2023) and His World of Ideas and Stories

Programmer of the Universe

Click to enlarge

“OK, so let me tell you…” And so it would begin. A long and colorful story. An elaborate description of a wild idea. In the forty years I knew Ed Fredkin I heard countless wild ideas and colorful stories from him. He always radiated a certain adventurous joy—together with supreme, almost-childlike confidence. Ed was someone who wanted to independently figure things out for himself, and delighted in presenting his often somewhat-outlandish conclusions—whether about technology, science, business or the world—with dramatic showman-like panache.

In all the years I knew Ed, I’m not sure he ever really listened to anything I said (though he did use tools I built). He used to like to tell people I’d learned a lot from him. And indeed we had intellectual interests that should have overlapped. But in actuality our ways of thinking about them mostly didn’t connect much at all. But at a personal and social level it was still always a lot of fun being around Ed and being exposed to his unique intense opportunistic energy—with its repeating themes but ever-changing directions. Continue reading