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Cake day: July 22nd, 2023

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  • force@lemmy.worldtoScience Memes@mander.xyzI just cited myself.
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    3 months ago

    Lol what? How did you conclude that if 9x = 5 then x = 1? Surely you didn’t pass algebra in high school, otherwise you could see that getting x from 9x = 5 requires dividing both sides by 9, which yields x = 5/9, i.e. 0.555... = 5/9 since x = 0.555....

    Also, you shouldn’t just use uppercase X in place of lowercase x or vice versa. Case is usually significant for variable names.


  • force@lemmy.worldtoScience Memes@mander.xyzI just cited myself.
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    3 months ago

    Pi isn’t a fraction (in the sense of a rational fraction, an algebraic fraction where the numerator and denominator are both polynomials, like a ratio of 2 integers) – it’s an irrational number, i.e. a number with no fractional form; as opposed to rational numbers, which are defined as being able to be expressed as a fraction. Furthermore, π is a transcendental number, meaning it’s never a solution to f(x) = 0, where f(x) is a non-zero finite-degree polynomial expression with rational coefficients. That’s like, literally part of the definition. They cannot be compared to rational numbers like fractions.

    Every rational number (and therefore every fraction) can be expressed using either repeating decimals or terminating decimals. Contrastly, irrational numbers only have decimal expansions which are both non-repeating and non-terminating.

    Since |r|<1 → ∑[n=1, ∞] arⁿ = ar/(1-r), and 0.999... is equivalent to that sum with a = 9 and r = 1/10 (visually, 0.999... = 9(0.1) + 9(0.01) + 9(0.001) + ...), it’s easy to see after plugging in, 0.999... = [n=1, ] 9(1/10)ⁿ = 9(1/10) / (1 - 1/10) = 0.9/0.9 = 1). This was a proof present in Euler’s Elements of Algebra.









  • So I take it you’re against the government subsidizing science research in general? “The government shouldn’t fund new technology” is a stupid and destructive position. We’d be living in the 1800s if it were up to solely the capitalistic market. I mean, the first broadly effective antibiotics that are responsible for saving probably hundreds of millions of lives at least only exist because of people working in government-funded labs, under government-funded universities, for the government. Why should the environment be treated like it doesn’t matter to our civilization?


  • “There is no future without electrification. But just electrification will not get us there,”

    Daniel Posen is an associate professor in U of T’s department of civil and mineral engineering, and the Canada Research Chair in system-scale environmental impacts of energy and transport technologies. He agrees electrification is vital. But relying solely on electric vehicles to reduce carbon emissions from transportation may not be enough, especially if we want to do it in time to stop a catastrophic two-degree rise in global temperatures.

    The article you link contradicts you, it clearly suggests that adoption of EVs reduce carbon emissions, but we still need to do more (e.g. ACTUALLY HAVE PUBLIC TRANSIT INFRASTRUCTURE) to prevent a climate catastrophe.






  • No, not at all. You can easily view the edit history of all Wiktionary pages – 2 years ago, someone put the definitions in the order they are now for a specific reason. This person thinks it should be the other way around, so if they want to change it it’d be best to make a discussion about it. That’s the best way to get a community consensus on it. Wiktionary is a collaborative effort, people have different opinions on the specifics of a page, that’s why discussions exist and are the go-to for settling differences in views.


  • Whether a term is characteristic of a certain dialect or region isn’t generally considered all that much when it comes to order on Wiktionary, unless it’s an “obscure” dialect. I contribute a lot to Wiktionary (mainly for languages other than Modern English though) and there are few rules on the specific the order of definitions, it’s mostly just common definitions above uncommon definitions (but this isn’t even a hard rule).

    Editing it to change the order for your reason specifically might be considered vandalism, as it’s typical and allowed for entries to be like this and it’s common for little disputes like that to cause editing wars (although that’s admittedly far more common on Wikipedia, since many Wiktionary contributors are actually linguists and are less controversial).

    That being said, someone actually did intentionally move the “gang member” definition above the other one, so there’s clearly some sort of difference in opinion.

    If you want it changed, the course of action you should take is starting a discussion about it. It’s a good way to get a community consensus.