Just a smol with big opinions about AFVs and data science. The onlyfans link is a rickroll.

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Cake day: October 11th, 2023

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  • I’ve gotten more than a few truly stupid and/or utterly unrelated answers and it’s wrong more than half the time (I’ve been counting, hey gemini how do I touch grass?) but I’ve never had it give the surreal wrong answers you see get popular. Doesn’t mean it’s impossible, I expect most of them are legit answers people have gotten, but they’re certainly not representative of the norm.







  • Far more people have died from being ejected through the window, which is why the testing requirements in 49 CFR §571.226 were expanded to now in effect require at least laminated glass for front passenger windows along with curtain airbags in new vehicles. Deaths from being trapped by laminated glass are overwhelmingly the product of improper identification of the glass type and/or lack of the correct tool - laminated glass is very easily cleared when one is both trained and expecting it, even using tools like a standard fire axe or crowbar, but the technique is not obvious and unexpected complications in high pressure situations are paid for with lives.

    With a specialized tool like a rescue glass saw the window can be removed in seconds, and the lives saved by preventing ejection in a high speed impact or rollover far outweigh those lost to being trapped by fire. It’s a dreadful algebra, but moving the industry towards using laminated glass was the correct decision.

    If you’re concerned, get a dedicated laminated glass extraction tool; I have used & carry with me a lifeline evac pro and it performed very well, although it’s absurdly expensive - I recommend picking up one of the many clones of the tool, which I doubt will last for more than a handful of escapes or rescues, but unless you are in emergency response or live in a particularly accident-prone region (as I do) you (I very much hope) will never need to perform multiple rescues in your lifetime and can absolutely use the cheaper knockoff designs.



  • I was curious as my car has laminated side windows, and dug into it possibly far further than was entirely sane. The summary is yes, you can indeed use shatterproof glass in passenger windows.

    This can be found in 49 CFR § 571.205 S5.1, which specifies all glazing materials must conform to ANSI/SAE Z 26.1-1996. If we look at ANSI/SAE Z 26.1-2007 (a later update of the standard which is not meaningfully different for our purposes - I have elected to link to it here rather than 1996 as it is able to be found online without a paywall) and go to Table 1, Page 10, Items 1, 2, 10 and 11A, we can see that standards are given for the use of laminated glass for all positions (item 1), all positions except windshield (item 2), bullet-resistant glass for all window positions (10) and specifically laminated bullet-resistant glass for all positions except windshield (11A)






  • I have very occasionally seen measurements given in yd + in or yd. + dec ft. I have never once seen measurements given in any of yd + ft + in, mi + yd, mi + yd + ft and definitely never in mi + yd + ft + in. That would be like giving a measurement in km + dm + cm + mm, there’s just no reason to do it. Any cad software I’ve ever used is capable of handling mixed units because it’s trivial to implement, but I would be willing to bet it’s one of the most underutilized features.



  • It does not “settle in your lungs” because that’s not how lungs work at all. You can of course suffocate if the atmosphere is sufficiently saturated with NO2, but your lungs are more than capable of fully expelling water; removing a gas is not difficult.

    Excretion: Nitrous oxide is primarily eliminated via the lungs. (source)

    Nitrous oxide is primarily eliminated through expiration and is essentially not metabolized by the body. (source)

    Seriously, where are you getting your info from?





  • Warl0k3@lemmy.worldtoLemmy Shitpost@lemmy.world•whipped cream
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    7 days ago

    They are correct - nitrous oxide inhalation does not automatically cause brain damage.

    When inhalation of high concentrations of nitrous oxide is discontinued, high partial pressure in blood transfers nitrous oxide to the alveoli rapidly. This dilutes the partial pressure of oxygen in the alveoli and may lead to hypoxemia. […] This concern is more theoretical than clinical, however. Hypoxemia is significant for only a matter of minutes and has been documented only when high concentrations (>70%) have been delivered by full mask or by endotracheal tube. These conditions cannot be met with the use of conventional dental nitrous oxide machines with nasal masks, and any tendency for diffusion hypoxia is trivial.

    (source)

    (edit: clarity, typo)