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Dvandom

@dvandom.bsky.social

150 followers 36 following 4.6K posts

Physics Professor, Transformers enthusiast, comics reader and reviewer, etc. He/him. http://www.eyrie.org/~dvandom http://www.dvandom.com Automatic follow-back helps trolls and bots build a false legitimacy, so don't expect it from me.

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Dvandom @dvandom.bsky.social · Jan 19

People who know me from elsewhere who are part of a new migration wave, please don't be offended if I don't follow back. My feed is about as active as I can manage following right now.

Dvandom @dvandom.bsky.social · 5h

"New Course Management Software."

Dvandom @dvandom.bsky.social · 7h

Polar is tricky, because the unit vectors are perhaps most clearly defined as "the direction that component increases," and that ties into the polar definition of angle (zero at +x, increases counter-clockwise). Of course, I'm currently in the middle of saying, "Actually, rotate around k-hat...."

Dvandom @dvandom.bsky.social · 7h

a group of anime characters are standing in a room and one of them says " let 's go yuta "

Alt: The protagonist of the anime Gridman activating his transformation sequence.

media.tenor.com

Dvandom @dvandom.bsky.social · 7h

Well, Drake was already a rapper in 2015....

Dvandom @dvandom.bsky.social · 7h

If the moving object is the origin, then any N2L analysis will have problems and require extra forces like centrifugal and Coriolis. (I introduce frames of reference in the same lecture as centripetal acceleration, and come back to it when doing forces.)

Dvandom @dvandom.bsky.social · 7h

Only to the extent that it's negative of the unit vector. Thing is, down can be positive (something I encourage them to think about for things like falling).

The reason is we're analyzing circular motion, and we need an inertial frame of reference if Newton's Second Law is going to work.

Dvandom @dvandom.bsky.social · 7h

Radial is the vector component, centripetal is something in the negative r-hat direction. But I exclusively teach calculus-based, so I can assume they've seen polar coordinates before.

Dvandom @dvandom.bsky.social · 23h

Coming soon to a mandatory viewscreen near you, Teela-O-MLY-1, -2, and -3 in the role she was cloned to play, "KPP-Sector Traitor Hunters!"

Dvandom @dvandom.bsky.social · 1d

I haven't seen any Tron toys in stores, just online Collector Stuff like the HasLab set (which won't even ship until next year at the earliest). Then again, there's been a lot of toys I didn't see on shelves until they hit Ollie's or Ross.

Reposted by Dvandom

Mike W @gekido.bsky.social · 1d

so Google just added a bunch (more) AI bullshit to Chrome

Go through these steps to disable it:

opus.ing/posts/how-to...

#chrome #aibullshit

How to Remove AI From Your Google Chrome Experience - Opus

Follow these steps to resist the AI-pocalypse in your everyday web browsing.

Dvandom @dvandom.bsky.social · 1d

If there isn't a class war, manufacture one.

Dvandom @dvandom.bsky.social · 1d

It does get awkward when this time the Nazis include some Jews among their number.

Dvandom @dvandom.bsky.social · 1d

Did he sign his name "Billy Ruben"?

Dvandom @dvandom.bsky.social · 2d

Xenophilia or zoophilia?

Dvandom @dvandom.bsky.social · 2d

Is the crisis that there are too many, or that there's a shortage?

Dvandom @dvandom.bsky.social · 2d

(Ah, reading further down my feed I surmise it's about the Nobel Peace Prize.)

Dvandom @dvandom.bsky.social · 2d

Huh, shows as deleted. I presume from comments that it involved Wussolini somehow?

Dvandom @dvandom.bsky.social · 2d

I like how the standard layout results in "Month of the terrible ALT" in the preview. FEAR THE ALT TAG!

Dvandom @dvandom.bsky.social · 2d

Post a mage!

A man in a gray suit inspired by a tuxedo but without the cummerbund. He is holding a tablet and casting a spell accompanied by various colored spheres, which are reflected on his suit. Okay, he's technically got magical girl powers, it's complicated, they're still trying to figure out how he used the power of higher math to tap into the magical girl source.

Dvandom @dvandom.bsky.social · 3d

"I Am Wheeljack (Yellow)"

Dvandom @dvandom.bsky.social · 3d

Also Sloane Winters (Indexing series).

Dvandom @dvandom.bsky.social · 3d

Anerable.

Dvandom @dvandom.bsky.social · 3d

"If you can avoid doing too many of these things while you're alive, you might get to do them all the time forever after you die!"

Dvandom @dvandom.bsky.social · 3d

Or the font issue that makes Al look like AI.

Dvandom @dvandom.bsky.social · 3d

Yep, the 90s, only "oh no, no no no" years ago.