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Apple iPhone 15 relegated to USB 2.0 unless you buy the Pro in c/technology@lemmy.world
[–] 23 points 2 years ago

I had a very quick check and I think iPads use an external chip for USB 3 - and there may just not have been space on the iPhone’s logic board for that. I think you’d have to judge it next year - since the base models seem to be using last year’s pro chips - if the base model doesn’t support 3.1 speeds then, something fishy is happening

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    • Eat the rich in c/memes@lemmy.ml
    Government shelves £40m contract for helicopter transport for Rishi Sunak in c/uk_politics@feddit.uk
    Greece renews its calls for British Museum to return Parthenon Marbles in wake of priceless thefts in c/worldnews@lemmy.ml
    One of the claims on this Belvita packaging only appears in English in c/mildlyinteresting@lemmy.world
    Holy shit, no way! in c/memes@lemmy.ml
    As an owner of children, I approve this message in c/memes@lemmy.ml
    Android vs IOS in c/memes@lemmy.ml
    [–] -3 points 2 years ago (3 children)

    Didn’t google only recently get the ability to block apps access to stuff like your camera, microphone, files etc? That was in iOS over a decade ago

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    Anyone else interested in an optionally non-translucent tab/navigation bar? in c/mlemapp@lemmy.ml
    I LOVE BIG FAT COCKS in c/memes@lemmy.ml
    Italian man crushed to death under falling cheese wheels in c/worldnews@lemmy.ml
    Incandescent light bulbs are officially banned in the U.S. in c/technology@lemmy.world
    [–] 2 points 3 years ago (1 child)

    I think to update the string of lights you’d need to change transformer. Household bulbs have a driver in the bulb that converts the 230V to the ~12V the bulb uses. But for that string of lights, they’d need to get an electrician (or someone who knows what they’re doing)

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    Reddit claiming they weren’t recovering deleted posts (lemmy.ml)
     

    I’m not sure if it’s a coincidence, but I raised a case with the ICO in the UK, and today they got back to me asking for all my communication with Reddit. Also today - after a month of silence - Reddit also emailed me with this

    If you’re in the UK and had been affected by posts being restored, I’d recommend contacting the ICO. It takes less than 5 minutes

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    Is MVHR a scam? (lemmy.ml)
    submitted 3 years ago* (last edited 3 years ago) by to c/physics@mander.xyz
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    I was wondering about the physics for mechanical ventilation with heat recovery. My understanding is that it's a passive system that has a head exchanger formed of many thin layers of a metal (presumably aluminium) which then alternate airstreams entering and leaving a house to heat up the incoming air

    The diagrams you'll look at will show an example like it being 0º outside and 20º inside, then after the heat exchange, it heats up the incoming air to 18º

    Is this not bad science? The pressure of the house has to remain constant, so the incoming volume of air has to equal the outgoing volume of air. At best - if the air had infinite time to exchange heat, the best you'd achieve is 10º for the incoming air.

    In the real case, I'd assume your heat exchanger would reach 10º, and the incoming air would interact with it for at most a few seconds. I just can't see any real heat transfer happening here

    What's your thoughts? A scam, or something that has actual benefits?

    Edit - I've left the original post in tact - but I did find an answer. It's a real phenomena called countercurrent flow/countercurrent heat exchange. It's very important that the flows are in opposite directions - if they're not, you'll just reach the equilibrium temperature. But when they flow in the opposite directions, it is possible exchange nearly all the heat. The phenomena also shows up in nature - ducks have a countercurrent heat exchange system in their legs so the are able to recover heat losses from their feet being in water

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