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Joined 1 year ago
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Cake day: July 20th, 2023

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  • I’ve had that happen with what i assume was a hand lotion because there was a particular part of the lid that smelled.

    I don’t know why other people are treating you with so much disbelief. This absolutely can happen with people not thinking about how their habits impact what customers are consuming. With how many millions of coffee beverages that are served every day, it shouldn’t surprise anyone that some small portion are handled improperly with poor hygiene. It also shouldn’t be overly surprising if you’ve had it happen multiple times because you likely visit the shops near you. Such an event isn’t random and is the result of someone’s bad habits.


  • No, never. Current charging rates already get close to thermal constraints. Hitting those charging rates either requires accepting much lower power density or using way more metal per cell. This research might inform design changes to improve charging rates, but we’ll never see high capacity batteries charging in a minute.

    The researchers know this and only mention wearables and iot devices applications. The article author erroneously makes the leap to high energy density devices.

    If you don’t care about energy density at all, ceramic capacitors can already charge and discharge in microseconds.










  • Color-safe bleach seems to be Hydrogen Peroxide based, so you were probably safe.

    Traditional Sodium Hypoclorite bleach should never be mixed with vinegar. That can release chlorine gas which is very bad for you even at low concentrations.

    In general, use one cleaning agent at a time with thorough rinses in between. It can be hard to predict how cleaning agents will react. You’re likely to reduce the effectiveness of them by mixing, and there’s a chance of making dangerous byproducts.




  • I’m sure avoiding contaminating the sample was the requirement that had them acting very cautiously. The comments saying that an angle grinder could have it open in 5 minutes were so annoying. Of course NASA engineers could bust it open if that’s all they cared about. The whole point of collecting a sample is to take extremely precise measurements of the contents. Any grinding wheel or saw, would risk adding contamination that would mess up the analysis.