chef's kiss. No notes.

In Northfield MN tonight (and I know the Carlton and St. Olaf folks will be!)? I'll be there too, at the Content Bookstore. I'll explain how Superman reverses time (consistent with General Relativity!) and other movie physics facts! Lights! Camera!...Physics! www.contentbookstore.com/events/32406...

The rest of the page: Superman: We need information...about Black Holes Batman: And what happens when one collides with a White Hole Professor: It's a grey area.

In Northfield, MN this Thursday evening? Stop by the Content Bookstore and here me talk about my new book THE PHYSICS OF SUPERHEROES GOES HOLLYWOOD. Carlton and St. Olaf folks alert! contentbookstore.com/events/32406...

Indeed, it is a lot. It's even more than 40 cakes. (IYKYK). All seriousness aside, a truly impressive achievement.

Sorry @gailsimone.bsky.social , there wasn't enough space in my new book THE PHYSICS OF SUPERHEROES GOES HOLLYWOOD to discuss Cyclops' heat vision or Superman's force beams. Maybe in the sequel?🤔

Batman always has a plan. Can't wait to see what this one is!

Want. No, scratch that. Need.

It's possible the planet has a large magnetic field, and auroras are heating the atmosphere. Jupiter's atm. has a temp of 700K, but based on solar flux, it should by 150K. Extra heat provided by charged particles impacting planet. physics.aps.org/articles/v18...

[new Isaac Chotiner interview]

Thanks to @athenascalzi.com and scalzi.com) for letting me post a Big Idea about my new book. Always using your powers for good! whatever.scalzi.com/2025/09/22/t...

Both physics profs who consult for superhero movies and writers of superhero comic books who know their physics enjoy my new book THE PHYSICS OF SUPERHEROES GOES HOLLYWOOD. Bringing people together - it's what I do!😉

My book launch last night at the fantastic Magers & Quinn went great last night. Full house and they even laughed at (some) of the jokes. My new book covers a broad range of physics - from the very big (as in the universe) to the very small (the Higgs boson) and the human scale where we all live.

“Imagine the day the aliens arrive.” So begins Do Aliens Speak Physics? by the US particle physicist Daniel Whiteson and the cartoonist and author Andy Warner. They ask if we could communicate with aliens, and ask whether we would be able to understand alien science? ⚛️🧪 ow.ly/XeUF50WYEKS

I'll be speaking at Magers & Quinn Bookstore in Uptown Minneapolis tonight - 7 PM! I'll show how the Spider-Man and Superman movies get their science right! The talk should be entertaining - and if not, at least educational.😉 www.magersandquinn.com/event/James-...

Hey, midwest friends! This incredible film is debuting in MSP next month and you should go see it! I’m not in it but I am a PRODUCER, which I think means I get to take all the credit for it while doing nothing.

MY NEW BOOK IS NOW OUT! WITH COVER AND ILLUSTRATIONS BY GENIAL GENE HA! @geneha.com THANK YOU FOR YOUR ATTENTION TO THIS MATTER kakalios.com/books/the-ph...

It was on 14 September 2015, exactly 10 years ago, when gravitational waves created from the collision of 2 black holes 1.3 billion light-years away hit the LIGO detectors in the US. But could the the Einstein Telescope usher in a new age for gravitational waves?🧪⚛️ physicsworld.com/a/celebratin...

My longtime buddy @jimkakalios.bsky.social has his book release event this Thursday at 7 at Magers and Quinn in (actual) Uptown!

The official launch of my new book will be at Magers and Quinn in Uptown Minneapolis on Thursday Sept. 18 at 7 PM. Come sign up and join us. (previous link didn't have the registration info) www.magersandquinn.com/event/James-...

The Rogues en.wikipedia.org/wiki/The_Rog...

The official launch of my new book will be at Magers and Quinn in Uptown Minneapolis on Thursday Sept. 18 at 7 PM. Come sign up and join us. www.magersandquinn.com/product/The-...

After reading Paul Halpern's book on the Multiverse, see how the concept is used in superhero movies. True to its name - there are different types of Multiverses!

One week to go. An all-new exploration of General Relativity and time travel, the Higgs Boson, A.I., why your footprints look dry on the sandy shoreline, active matter, and how LEDs work. Or as computer scientist, author, and current writer of the Fantastic Four, @ryannorth.ca says:

Just like the X-Men, my new book is All-New and All-Different. And @gailsimone.bsky.social knows her X-Men!

Who am I to argue with @seanmcarroll.bsky.social ?

I'm Ready! And Willing and Able are on their way! All seriousness aside, when wavelengths cross, you have to be careful that it doesn't turn out to be destructive.

Saavik captures a theme of modern astronomy: the sky is constantly changing! Looking forward to the amazing observations on this that will come from the Rubin Observatory @vrubinobs.bsky.social as it starts imaging the sky every few nights! — Star Trek #9 (1984) #startrek #dccomics #rubinobservatory

No lies detected

The DC comics of the Silver Age really seemed to go out of their way to incorporate real science facts into their stories. This example is directly related to the plot, but they'd shoehorn them in otherwise.

Animal-Vegetable-Mineral Man - - Hey! Pick a lane!

It’s an especially silly thing for him to say when the only reason the movie got made was because George Harrison put his hand in his own pocket to pay for it… because… the studios weren’t interested!

Holy Thirst Quenchers, Batman!

Because what the Atom says is not correct (pains me, as a fellow Physics Prof. to say this). The signal moves down the phone line, at nearly lightspeed, but not the electrons themselves. Like a sound wave or a stadium wave, the electrons in wire are not carrying the information; they pass it along.

W00t! There I am, just two behind @crobertcargill.bsky.social's latest. Keeping some pretty cool company. And we're all resting on Bradbury's shoulders.

"What's that? You want me to repeat everything for exposition?"

To start off the week on the right foot - here's a photo of a Lantana from our back deck, exhibiting quasicrystalline five-fold symmetry

One month from today! Atomic Batteries to Power! Turbines to Speed!

This is one of the most beautiful things I have witnessed, the craft here is impeccable.

This war against "Elites" is baffling. When I need heart surgery, I want an Elite Doctor When I'm in court, I want an Elite Lawyer When my car makes a funny noise, I want an Elite Auto Mechanic And for running the HHS, I want an Elite Expert in Medical Issues

Another one for my collection of "public intellectuals who don't know the proper usage of the phrase 'exception that proves the rule.'"

Heard the latest news from the LIGO-Virgo-KAGRA collaboration? We detected the collision of the most massive pair of black holes so far: #GW231123 weighing in at ~137 + ~103 times the mass of the Sun! So to celebrate, here’s a handy chart ✨ Just how chonky are these black holes? 🤔

Hello, I am a person in a film or television drama. When I wake up in the middle of the night, I turn on the bedside lamp, and I don't shield my eyes, which are not dilated due to sleep.

Read the whole thing! You're welcome.

I loved the Fantastic Four film - the cast, the story, the art direction! Stay for the end credits. Not for any extra scenes, but to see the listing for physics professor and fellow FF fan @asymptotia.bsky.social Clifford Johnson listed as the Science Advisor. Even Reed Richards needs some help!

The Minnesota Institute for Astrophysics is now a new hosting Institution for the 51 Pegasi b fellowships. Come and work with us! www.hsfoundation.org/programs/sci...

Very rarely are Space Warps not the key to any problem.

University of Minnesota Astrophysics professors get it done!

My simple take: speed is distance/time. If ALL observers, regardless of whether they are in motion relative to each other, all agree on the value of the speed of light, then they must disagree on distances and times.

That last one is the classic ICP conundrum.