Spencer Bagley
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sbagley.bsky.social
Spencer Bagley
@sbagley.bsky.social
1.5K followers 210 following 4.7K posts
Math professor, inveterate shitposter, pride is all year round
❤️🧡💛💚💙💜
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sbagley.bsky.social
Tonight it is butternut squash* and some sliced up meatballs but it is still gooooood
* Dyk canned pumpkin is actually the same species as butternut squash but a different species from jack-o'-lanterns
November 10, 2025 at 1:18 AM
sbagley.bsky.social
Maybe I shouldn't be allowed access to image-annotation tools
Yoda dying, captioned, "There is ... another ... Skywalker", except I've crossed out "Skywalker" and wrote "indeterminate form"
November 8, 2025 at 9:33 PM
sbagley.bsky.social
Way ahead of u lol
A slide labeled "History time!" with pictures of Guillaume François Antoine, Marquis de l’Hôpital, and Johann Bernoulli A google slide with title "What do you think we should call it?" Some options: “L’Hôpital’s rule” Standard; somehow inaccurate “Bernoulli’s rule” Accurate; people might not know what you mean Something else more descriptive “The rule for limits of indeterminate forms?” Understandable; a real mouthful
November 8, 2025 at 9:20 PM
sbagley.bsky.social
I mean
I have written on a whiteboard the equation "1/huge = tiny". Next to that I have drawn 1 pizza cut into a billionty pieces. The drawing truly looks so much like I was purposefully drawing a butthole.
November 8, 2025 at 8:49 PM
sbagley.bsky.social
Instead of a detailed discussion of the academic misconduct report I just had to file, lookit my doggies in my office
My big white dog Hazel laying down on the floor of my office, and my big brown dog Hank getting chin scritches
November 7, 2025 at 5:04 PM
sbagley.bsky.social
girl bye
Ultimately, Pelosi reclaimed the gavel in 2019 — the first person to do so in over 60 years. Originally thought by analysts to be too liberal to be an effective leader, her legacy is ultimately that of a centrist and legislative pragmatist.
November 6, 2025 at 4:34 PM
sbagley.bsky.social
Do we get to pick which Catholic? If so I have a suggestion
A picture of JD Vance but his face has been altered to be way too small for his head
November 5, 2025 at 8:19 PM
sbagley.bsky.social
Lookit my beets (baseball for scale)
A picture of some absolutely enormous beets that just came out of my garden. A baseball is included for scale; the largest of the beets is easily three times the size.
October 31, 2025 at 7:16 PM
sbagley.bsky.social
ALERT: CATEGORY FIVE SMOOSHY FACE EVENT. SHELTER IN PLACE.
My big brown dog Hank is laying on the couch with his face smooshed between my leg and the back of the couch.
October 25, 2025 at 4:45 AM
sbagley.bsky.social
Do I have to do everything myself around here
\(C(t) = \dfrac{\sqrt{\dfrac{\arcsin(2w+3)}{\arcsin(3w-2)} + e^{i \pi/2}\cdot \cos\left(-\dfrac{34}{\pi^2}\right)}} {\ln\Big(\cos\big(\sin(\cos q)\big)\Big) \cdot \arctan(7^z+z^7)}\) \quad (Hint: Think.)
October 23, 2025 at 8:34 PM
sbagley.bsky.social
Welp, there's your prablem
A picture of my bike tire tube next to the valve stem, which has come completely detached from the tube
October 22, 2025 at 11:41 PM
sbagley.bsky.social
I am going to throw this man in the ocean
A screenshot of my call log showing, no joke, four missed calls in under thirty minutes
October 21, 2025 at 4:57 PM
sbagley.bsky.social
What in the sam hell happened while I was playing silksong
A screenshot of my bluesky timeline: David_j_roth @davidjroth.bsky.social The generals said "sir are you sure you want to fly the diarrhea bomber over the Al city with the nonsense billboards" and I said [zesty] we've got to shit the hell out of 'em. And no one has more loose stool than me. And actually that was very smart. Making myself the diarrhea president was smart. Tim Onion @bencollins.bsky.social The president needs your help! He's collecting diarrhea for his plane. He has a plane that's 99% toilet with other people's diarrhea in it and he wears a little crown when he drives it around. Brave patriots please send your loose stool to your favorite diarrhea president for his diarrhea plane. Tim Onion @bencollins.bsky.social My girlfriend is going to be in Congress btw Reposted by David_j_roth @internethippi.bluesky.social Sir everyone online is saying "Diarrhea Donald" should we release a state clarifying that you do not in fact around in a plane full of diarrhea
October 19, 2025 at 5:09 AM
sbagley.bsky.social
Please enjoy a happy dog face in lieu of a story about a student being spicy with me and also missing the point.
Hank, my big brown dog, is looking up at me all happy because I have just said the word "walk".
October 15, 2025 at 6:33 PM
sbagley.bsky.social
About 34 seconds after I rolled into work on my bike
October 15, 2025 at 6:17 PM
sbagley.bsky.social
Oh lol I went to look up what date I was formally promoted on last time bc I had forgotten and
Screenshot from my formal application-for-promotion letter to my dean: This letter serves as my formal application for promotion in rank from Associate Professor to Professor. I proudly hold a Ph.D. in mathematics education from the Mathematics and Science Education Doctorate program jointly offered by San Diego State University and the University of California, San Diego. As I was promoted to the rank of Associate Professor on 13 March 2020 (I will indulge myself in a brief departure from the formal tone of this letter to say, *yikes*), I am now in my sixth year of full-time teaching at the rank of associate professor.
October 10, 2025 at 5:17 PM
sbagley.bsky.social
Proud of my husband's compelling innovations in the banana space
A single banana hanging from a banana hook, but suspended from a rubber band, because how else would you hang a single banana on a banana hook
October 7, 2025 at 11:35 PM
sbagley.bsky.social
Also: lorge
BUFFALO, NY - MARCH 31: Nathan Gerbe #42 of the Buffalo Sabres (height 5'4") and Zdeno Chara #33 Boston Bruins (height 6'8") prepare for a faceoff during the second period on March 31, 2013 at the First Niagara Center in Buffalo, New York. (Photo by Bill Wippert/NHLI via Getty Images) (Bill Wippert via Getty Images)
October 6, 2025 at 2:44 PM
sbagley.bsky.social
No one man should have all this power
Distracted boyfriend meme: boyfriend labeled "d/dt (7^t)" turns away from his girlfriend "7^t ln(7)" to ogle "t * 7^{t-1)"
October 1, 2025 at 4:58 PM
sbagley.bsky.social
generating memes with which to teach the children
Four panel expanding brain meme. Panel 1: The derivative of a constant is zero Panel 2: The derivative of a constant *function* is zero Panel 3: The *slope* of a constant function is zero Panel 4: Constant functions are flat lol
October 1, 2025 at 4:48 PM
sbagley.bsky.social
Y'all, I made up these extremely cromulent definitions for my transition-to-proof quiz and after writing out the proof frameworks I am like 71% convinced that they mean something and I could prove it
Screenshot of a quiz question: Learning target P2, version 1 The following definitions are extremely made up and don’t mean anything (but they look fun!). Definition: A function is viscous if its geodesic curvature γ( f ) is nonzero. Definition: A function is laminar if its intrinsic cofunction f-tilde is differentiable. Consider the following proposition: Every laminar function is viscous. 1. Write a proof framework for a direct proof of this proposition. 2. Write a proof framework for a proof by contrapositive. 3. Write a proof framework for a proof by contradiction. 4. (Bonus!) If for some reason you did not believe this proposition was true (and thus that none of these proof frameworks is appropriate), how would you show it?
September 24, 2025 at 9:15 PM
sbagley.bsky.social
I mean
A guy with curly hair and a yarmulke looking at Eric Adams with eyebrows lowered and lips pressed together in a "THIS fucking guy" grimace A guy in a yarmulke looking directly at Eric Adams's back with an expression of blank disbelief on his face A guy in the blurry foreground of the picture who has just looked away from Eric Adams and is now wearing a vaguely haunted expression like, "phew, THIS fucking guy"
September 24, 2025 at 2:59 AM
sbagley.bsky.social
Excuse me but what the *fuck* happens on game changer
[Laughs] Okay. All right. You’ve ruined that for me now. I mean, the Game Changer host I know would absolutely terrorize anybody in any way. That’s part of the character. I wasn’t going to stop the episode before he knew I stole his blood, let’s put it that way.
September 23, 2025 at 7:53 PM
sbagley.bsky.social
a golden statue of a calf
September 18, 2025 at 11:08 PM
sbagley.bsky.social
A guy in a SS uniform coming to grips with the idea that he might not be on the right side of history
September 13, 2025 at 6:56 PM