Apple iPhone 15 relegated to USB 2.0 unless you buy the Pro
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    Jacobp100
    Now 96%

    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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  • Germany begins dismantling wind farm for coal
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    Jacobp100
    Now 100%

    Most European countries including Germany use less electricity now than in the 90s, so the percentage would have risen if you kept the same output of nuclear power

    Nuclear peaked at 11% in the 90s and is now zero

    You can see an energy mix time series on here-

    https://ourworldindata.org/grapher/energy-consumption-by-source-and-country?country=~DEU

    1
  • Germany begins dismantling wind farm for coal
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    Jacobp100
    Now 50%

    Not really. 1/3 of your electricity production today is coal, while your nuclear dropped from 25% in the 90s to zero today. If you kept your nuclear - rather than shutting down your reactors well before the end of their life - you would be burning far less coal

    0
  • Android vs IOS
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    Jacobp100
    Now 33%

    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

    -3
  • Incandescent light bulbs are officially banned in the U.S.
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    Jacobp100
    Now 66%

    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)

    2
  • Cooking (and heating) without gas: what are the impacts of shifting to all-electric homes?
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    Jacobp100
    Now 100%

    I have an ikea one. Made by WhirlPool. You can find the manufacturer if you go to the support page for the product. I got a mid range ikea hob, and their 365 frying pan. The frying pan has the best Teflon, but the metal is pretty thin, so there is definitely hot spots. Just something to consider

    1
  • Cooking (and heating) without gas: what are the impacts of shifting to all-electric homes?
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    Jacobp100
    Now 100%

    Induction hobs are amazing. Much faster than gas at boiling water, and an equal response to changing temperature. Lower quality induction jobs and cookware will have hot spots though.

    10
  • A quarter of Brits want a ban on fake grass
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    Jacobp100
    Now 100%

    I have one because we have too much shade to grow grass. We have a 3 storey 60s house and a small, north facing garden. That said only one brand was recyclable at the end of its life, which is a shame

    1
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    Reddit Jacobp100 Now 98%
    Reddit claiming they weren’t recovering deleted posts

    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

    564
    87

    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

    9
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    Now
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    Jacobp100

    lemmy.ml