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Joined 2 年前
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Cake day: 2023年6月11日

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  • I had NiMH batteries in mind since we’re talking about types that come in alkaline, and low-self-discharge NiMH batteries (e.g. white Eneloops) are generally fine to fully charge before storage.

    You might end up with a bit shorter runtimes storing charged batteries for years than charging them right before use, but it doesn’t matter much when your runtimes are measured in years.

    There’s one potential snag with certain low-power devices though: a few only work in the 1.3-1.5V range. That’s terrible design since it doesn’t use most of the power in an alkaline, but some of those won’t work at all with NiMH.




  • I’d much rather see modern rechargeable batteries (Li-ion, maybe Na-ion in the future) in standardized, field-replaceable form factors.

    This is already common in flashlights. In my pocket today is a flashlight running on an AA-size 14500 Li-ion. There’s a magnetic pad to recharge the battery with a proprietary cable, but I can also unscrew the tailcap and replace it with a spare, as most people expect from a flashlight. I can use AA in a pinch with reduced performance, though I’ll note supporting both voltage ranges takes extra work on the manufacturer’s part.

    Being complex and energy-intensive doesn’t preclude batteries being standardized or field-replaceable. The issue with smartphones is that they have a highly optimized form factor.


  • Primary cells are easy and cheap to manufacture, and hold much more charge than rechargeable equivalents.

    This is half-true at best. Consider these tests of an alkaline primary, lithium primary, and NiMH rechargeable AA battery.

    The alkaline has more energy than the NiMH at 0.1A load, but not above that. It will last longer in something like a TV remote or wall clock, but not in something like a flashlight with even moderate output or anything with a motor. Low-self-discharge NiMH, which has better shelf life beats alkaline once the load reaches 0.5A, which represents a device that will drain the battery in 4 hours of continuous use. Lithium primaries win the benchmark here until reaching a very heavy 3A load, but they cost as much as NiMH and only work once.

    Allow a different voltage range in the same form factor and lithium-ion rechargeable 14500 cells now equal or slightly exceed the 5Wh capacity of lithium primary AA.







  • “But personalised ads are really convenient!”

    Not seeing ads is really convenient, and I have trouble understanding why anyone wouldn’t block ads aggressively on every device they spend much time using in 2025.

    To cover a couple common objections:

    It’s a corporate/institutional device and I can’t

    Then it’s the institution’s IT department I’m puzzled by. If I was running corporate IT, ad blocking would be part of the standard install. The FBI recommends it for security.

    The device is too locked down for that

    Why would you buy such a device, or continue using it now that you know better?



  • Someone logging timestamps for messages received on both ends of a conversation would be able to determine that two people are probably talking to each other given enough data. Signal is probably not doing that, but Signal’s other security guarantees provided by an open source client that encrypts communications end to end hold even if the organization was infiltrated or taken over by a bad actor. The anonymity of participants in a conversation is not protected as strongly as the contents of messages.


  • Whenever The Verge interviews people from companies that have something to do with photography or image processing, they ask “what is a photograph?”. There doesn’t seem to be a consensus.

    As a photographer, I’ve thought a fair amount about it. Many of the most famous pre-digital photographers did a lot of adjustment in the darkroom, and all digital photographs involve decisions about how photoreceptor data gets transformed into a viewable image, even if the photographer didn’t make them intentionally. Most of the time, most people still consider it photography and “real” with significant editing.

    Where it becomes something else in my mind, or “fake” is if the image doesn’t reasonably represent light that reached the lens in the moment being depicted. There’s a whole lot of wiggle room there of course - photography is art, not math. Adding fire to something that wasn’t burning using editing software, however clearly crosses the line into “fake” for me if presented as a photograph, or digital art if it’s not.