Chad Orzel

I'm a physicist, professor, blogger, and author of popular science books. Also at and

[Chad Orzel @orzelc]

What's my new book A BRIEF HISTORY OF TIMEKEEPING about? I hope the title's self-explanatory, but I went into more detail for The Big Idea: https://t.co/AEdD8fJ6nf

[Chad Orzel @orzelc]

This is likely to appeal to a good number of my followers, so in the unlikely event that they haven't already seen it... https://t.co/D8PPcFxaAn

[MLB @MLB]

Still can't believe how a baseball looks in Wemby's hand 🫨

[Tom Forth @thomasforth]

"in this paper we model that the US economy would have grown by 12% more if San Francisco had built infinity houses" > sure. The same modelling would make for a great "the US economy would have grown by 8% more if Nvidia had charged less and made less profit" paper you'd hate.

[Chad Orzel @orzelc]

Always fun seeing this come back around...

[TED-Ed @TED_ED]

The Heisenberg Uncertainty Principle states that you can never simultaneously know the exact position and the exact speed of an object.

Why not? https://t.co/GiyTouS8gX

[Terrible Maps @TerribleMaps]

Literal translations of the Chinese names for European countries

[Holiday Fartcruise @JeremiahWiggles]

I have a theory that one of the biggest generational divides in sci-fi nerd circles is that nobody under the age of about 25 has watched Firefly

[Interesting things @awkwardgoogle]

The perfect wallet

[Hollis Robbins @anecdotal]

When universities shifted from "teaching something" to "learning outcomes."

[Jomboy Media @JomboyMedia]

Baseball cheat code unlocked

[☔ @Whotfismick]

the fact that i procrastinate and still get shit done is the reason i can’t stop procrastinating

[Matt Bruenig @MattBruenig]

@jaqueyG @jamesswyter @zapatistazaddy @DanielErdle @N0tAnthonyDavis So just as Anthropic gives stock to its employees, its reasonable to suppose that they should give stock to its off-the-book employees, which is to say all of the people producing all of the training data.

[Associate Deans @ass_deans]

Just because you aren’t getting paid over the summer doesn’t mean you can’t respond to student emails or attend committee meetings.

[Lautaro Vergara 🇺🇦 @VergaraLautaro]

HISTORY OF PHYSICS

50 years of Supergravity (this month)

“Supergravity turns out to be a tiny piece of string theory, but this tiny piece reveals more important features that are not at all obvious from other points of view.”

-- Joseph Polchinski (1954-2018)🕯️

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[Chad Orzel @orzelc]

Happy Monday to everyone.

[Chad Orzel @orzelc]

@JimmyBsports Carefully.

[Chad Orzel @orzelc]

Maybe my least favorite part of teaching intro physics in trimesters is that I'm doing vector angular momentum in the last week of class. Yeah, they're going to retain THIS material...

[HarryHew @harryhew]

McGuinn told a great story at the World of Dylan. Bob was at McGuinn's place in Malibu, saw he had a basketball hoop & was sad he didn't have a ball. Next day McGuinn calls & Bob's wife Sara picks up. McGuinn says "Tell Bob I got a ball." Sara goes, "Oh Bob will be so EXCITED!!"

[Chad Orzel @orzelc]

I think this is the photo from 24 years ago today that randomly ended up in a CollegeHumor video. Anyway, still the best decision I ever made.

[Chris Arnade 🐢🐱🚌 @Chris_arnade]

Yes, you can walk to World Cup games in New York City.

I did it, but nobody should or will.

The World Cup is a television event that happens to have stadiums attached, and the U.S. is the richest media market on earth. Fifa goes where the money is, not where fans can walk to games.

https://t.co/c699HBkngQ