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Cake day: June 29th, 2023

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  • ornery_chemist@mander.xyztoScience Memes@mander.xyzWheee
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    8 days ago

    Completely rewrite the curriculum and problem sets for my advisor’s grad-level course for flipped-classroom virtual teaching as opposed to in-person lectures. It was the pits for many reasons, not the least of which was that his attitude became “everyone is at home doing nothing, so I can ramble into a recording for 3 h instead of giving 1 h lectures and we can have a full problem set every week instead of 4 in a semester and the scheduled class time is now a problem session amd to answer students’ questions :)”.

    And a fuckton of DFT calculations, so honestly, fair.










  • I’m not sure I’d call US sunscreens way worse (they are still very effective at blocking UVB, just not UVA as effectively), but there are definitely better options abroad. There definitely aren’t many options; that’s part of why Hawaii banning two common sunscreen ingredients for marine toxicity reasons was such a big deal.


  • Not saying that it’s necessarily a bad option, but my biggest issue with delta chat is that it does not offer forward secrecy (if a user’s private key is compromised, past messages can be revealed); Signal does. Delta no question beats signal in decentralization, though email is less decentralized than it seems–how many people do you know who still use gmail? Delta also inherently leaks metadata on whom you’re communicating with to the email host (that’s just imap/smtp). Signal can mitigate this somewhat with Sealed Sender (which gives one-way anonymity), though it can be broken with statistical analysis, and signal metadata is more identifying due to requiring a phone number.





  • Something something typical US circuits can deliver less power than typical Euro circuits. Not a lot less though. Turns out it depends, but the power rating in the EU is in theory usually about 2x that of US circuits, assuming similar current draws.

    I used to own a $15 plastic electric kettle, but it died after a year or two. When I went to target to get a new (hopefully better) one, I realized I could instead buy a plug-in induction plate on sale for $50, and a plain stainless steel kettle that somehow cost only $1.50 (less than the shitty bread that I was also buying? how?). The induction plate was honestly one of the best purchases I’ve made in a long time. Sure, I have to wear earplugs to tolerate the high-pitched scream that the frequency driver makes, but it boils water just as well as an electric kettle and is also soooo much nicer to cook on than the resistive curlicue burners that came with my apartment.