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Cake day: February 1st, 2024

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  • This is actually the one that I would agree with (edit: see below), if the difference is “professional” vs. “academic.” I certainly wouldn’t call a natural science degree professional, and if you’re in a research institution studying some form of engineering I’d probably put you in the same category. Just my experience/opinion though (and the rest of the exclusions are super stupid, I agree).

    Edit: from the replies, this is referring to Professional Engineering; in my corner of the world, “Engineer” is an overloaded term that generally means electrical, mechanical, software, and sometimes computer engineer. My comment was referring to these engineers, who are rarely licensed and study alongside scientists in school. I completely agree with parent in the context of “professional engineering” (I mean…it’s right there in the name…).











  • It’s interesting that, with Python, the reference implementation is the implementation — yeah there’s Jython but really, Python means both the language and a particular interpreter.

    Many compiled languages aren’t this way at all — C compilers come from Intel, Microsoft, GNU, LLVM, among others. And even some scripting languages have this diversity — there are multiple JavaScript implementations, for example, and JS is…weird, yes, but afaik can be faster than Python in many cases.

    I don’t know what my point is exactly, but Python a) is sloooow, and b) doesn’t really have competition of interpreters. Which is interesting, at least, to me.



  • Aluminum foil is very common in physics labs. And a main use for it is “baking”! To get ultra high vacuum (UHV)* you generally need to “bake out” your chamber while you pump down. Foil is used same as with baking food — keep the heat in and evenly distributed on the chamber.

    Sadly, it’s usually not food grade aluminum foil, as that can contain oils, and oils and vacuum are generally a big no-no.

    *Just how good is UHV? Roughly: I live in San Francisco, which is ~7 miles by ~7 miles (~11km). Imagine you raise that by another 7 miles to make a cube. Now, evacuate every last molecule of gas out of it. Now take a family sedan’s trunk, fill it with 1 atmosphere of gas, and release that into the 7 mile cube. That’s roughly UHV pressure.