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Cake day: January 1st, 2024

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  • With red, the context doesn’t matter. You run a red light, you get fined. With yellow, the context does matter: you only get fined if you clearly could’ve come to a stop safely, but didn’t.

    The severity of the fine also differs (talking about Germany here). If you run a red light you get at least one “point”, which is a semi-permanent mark on your record that will lead to more severe punishment if you rack up too many of them. If you endangered someone, caused an accident, or the light was red for more than a second, you also get your driver’s license taken away for a month. You don’t get any of that with a yellow light, and the monetary fine is also much lower.



  • hikaru755@lemmy.worldtoFuck Cars@lemmy.worldfor lulz
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    13 days ago

    Ah, yeah, that’s what I meant. I just assumed that at highway speeds, the additional drag in this scenario probably wouldn’t be enough to warrant shifting down. Although to be fair depending on the engine it totally might, that was just a quick generalization on my part



  • hikaru755@lemmy.worldtoFuck Cars@lemmy.worldfor lulz
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    13 days ago

    No, because an engine can use different amounts of fuel even at the same RPM. At the most extreme, a car can go downhill at high RPM with no fuel injection at all, only driven by gravity.

    During normal driving, the engine’s crankshaft has a hard link to the wheels. It’s going through a couple of gears etc. inside the transmission etc., but the speed conversion from that is fixed within a single gear. This means that the speed the vehicle is going is directly tied to the RPM the engine is turning at. For every gear, every possible vehicle speed correlates directly to a single specific RPM of the engine. Fuel use at that RPM can vary a lot though, entirely depending on the amount of energy needed to keep the engine at that speed with air resistance and other factors trying to slow the car down through the drivetrain.



  • If you plug a fork in an outlet and shock yourself to death, there’s nobody to blame but yourself for being dumb.

    And yet, we still design outlets in ways that make that exact kind of thing as hard as possible. Because there will always be kids who have no idea what they’re doing. Because there will always be old people unfamiliar with the technology that “everyone” should know how to use by now. Because accidents happen.








  • It is clear if you directly compare the panels, but even then, intellectually knowing that it’s the nose doesn’t bypass the instinctual pattern recognition that tells me “yup that’s a smiling face”. Might be biased because I look a lot at Lego minifigures who have mouths and no noses, but I think in general, humans care more about the mouth than the nose when recognizing faces