eric abraham

Physics Professor at University of Oklahoma. Tweets: physics, DnD, education, random jokes.

[eric abraham @ericabe3]

Final thought on 2025:

2025 looks like it surely has more factors of 5 than it does factors of 3, but it does not. (2 vs 4)

[eric abraham @ericabe3]

I periodically have thoughts. This should have been a thread, so I'll combine them here.

[eric abraham @ericabe3]

Final thought on 2024:

2024 has fewer factors of 2 than you might think, only 3. You then get to 253, whose prime factors are 23 and 11

[Tara Blume @tcblume]

ICYMI: The recycling operation started by folks at University Lutheran Church in Norman is so impressive.
https://t.co/9p8vXcfGqt

[eric abraham @ericabe3]

@georgie_rasco @davidfholt Great minds 🙂

[eric abraham @ericabe3]

The “Depths” quest givers in Dungeons and Dragons Online are named after Manchester United footballers from 2005

[Super Ghost 😵‍💫 @SuperPodSaga]

What is the most useless piece of video game knowledge you know?

[St. Olaf Stories @StOlafStories]

You can lead a herring to water but you have to walk really fast or he'll die.

[Massimo @Rainmaker1973]

James Harrison is a blood donor whose unusual plasma composition has been used to make a treatment for Rhesus disease. He made 1173 donations throughout his lifetime, which are estimated to have saved over 2.5 million unborn babies from the condition https://t.co/n2I8br7K9O

[Michael Beschloss @BeschlossDC]

Rescue of crewman on USS West Virginia after Pearl Harbor attack, today 1941:

[Moose Allain Ꙭ @MooseAllain]

Our 2022 Advent Calendar is here! A little bit early, by request, but feel free to print off it off and send to friends & family.

[😡fermion, PhD @angryfermion]

math twitter:

log😅 = 💧log😄

💬27k 🔁360k ❤️9M

[eric abraham @ericabe3]

I will be using this in a unit conversion homework problem in every intro physics course I teach for the rest of my career

[Whores of Yore @WhoresofYore]

A “Butt Load” does not refer to big bottoms but is actually a recognised unit measure. One butt load is equivalent to 126 gallons. It comes from either the old French ‘botte’ (boot) or the Italian ‘botte’ (barrel). It was used primarily to measure transports of alcohol at sea.

[Simon Kuestenmacher @simongerman600]

Geography trivia. Know your latitude twin! Major cities and towns in North America replaced by major cities across the Atlantic by latitude. Source: https://t.co/gDRwTwJaou

[Rob Sansom🐟 @Sansom_Rob]

Following current trends, the next PM will be in office for approximately minus 200 days

[Jordan Ellenberg @JSEllenberg]

Explained in class today that delta means a small positive number you choose and epsilon means a small positive number your enemy chooses.

[eric abraham @ericabe3]

Not systematic or statistical but a secret third uncertainty

[eric abraham @ericabe3]

@mwxhitaker that’s why i assign the book. all the tears of joy i’ve seen shed by students over the years

[eric abraham @ericabe3]

@WBrianLane I may be saying the same thing as others, but I didn’t see it explicitly mentioned: the induced E is not conservative. That’s how I explain it. Like you only get potential energy for conservative force, you can only define a voltage difference if E is conservative.