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bsryden.bsky.social
Writer of astrophysics textbooks, servant to cats
62 posts 422 followers 326 following
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Finn the cat is hanging out with his lobster. Happy #caturday!

submitted 55 days ago • 1 comment

Given 274 confirmed moons of Saturn, Lucy definitely has a point.

submitted 66 days ago • 0 comments

I am entering my cinematic era with the epigraph for Chapter 3 of Astrophysical Gas Dynamics.

submitted 69 days ago • 1 comment

I have chosen an epigraph for Chapter 2, and I think I have found a good illustration for the difference between Lagrangian and Eulerian observers. (I still have to negotiate the rights from the Shepard Trust, however.)

submitted 89 days ago • 0 comments

The latest volume in The Ohio State Astrophysics Series has been published! Thanks go to everyone in The Ohio State Astronomy Department, but especially to the students in the graduate dynamics class.

submitted 106 days ago • 0 comments

Opposing fascism and defying gender stereotypes: it's as American as apple pie, the Saturday Evening Post, and Norman Rockwell.

submitted 107 days ago • 1 comment

When a polar vortex is on its way, it is important to be prepared.

submitted 125 days ago • 1 comment

Are you attending #aas245? Stop by the Cambridge University Press display and get 30% off their featured books (including my latest, Celestial and Stellar Dynamics). Not attending? You can still get the discount online.

submitted 131 days ago • 0 comments

This is the time of year when I always think of the Ogden Nash poem "Good Riddance, But Now What?" It ends with the couplet: Hark! It's midnight, children dear. Duck! Here comes another year. (I am preparing to duck 2025.)

submitted 143 days ago • 1 comment

With Christmas lunch, there is nothing like a snowman-shaped glass filled with Guinness. ("I didn't say there was nothing better. I said there was nothing like it.")

submitted 149 days ago • 1 comment

Progress! I have chosen the epigraph for the first chapter of my next book (Astrophysical Gas Dynamics, to be published in 2026). May I have a cookie now?

submitted 150 days ago • 2 comments

Best Caturday wishes. I hope you are able to spend some time hanging out with your buddies.

submitted 160 days ago • 1 comment

The two people on the right when the clip begins are LePrince's parents-in-law, who were both born in 1816. Yes, there exists video footage of people born during the reign of George III.

submitted 168 days ago • 0 comments

What's your favorite 80's movie? Mine is the Roundhay Garden Scene (Louis LePrince, director: October 1888)

submitted 168 days ago • 0 comments

Happy caturday! I hope you find time to relax like a cat.

submitted 174 days ago • 0 comments

Best barrow ever!

submitted 178 days ago • 0 comments