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Cake day: July 1st, 2023

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  • According to this article, an average smartphone uses 2W when in use. That number will largely be dependent on the screen and SOC, which can be turned off or be placed in a lower power state when the phone isn’t actively being used. (The 5W - 20W figure is for charging a phone.)

    With 8 of these cells, you’ll have 800μW, or 0.0008W, and you need 2W. You will need to add a few more batteries… About 19,992 more. If 8 of these batteries are about the same size as a regular smartphone battery, you will need the equivalent of 2,500 smartphone batteries to power just one phone.

    Too bad they don’t say how much the new batteries weigh! It would have been fun to see…

    If we ballpark it and assume something the size of a regular smartphone battery is 50g (1.7 oz), then our stack of 20,000 of these new batteries could be about 125kg (275 lbs).

    I won’t be replacing any of my batteries just yet.









  • Are sd card slots cheaper than 128 GB of flash storage chips? I’m not sure, but yes, probably. You would also need to factor in the additional complexity of allowing physical access to the slot, which would take some additional designing and a few more components. The sd card itself will probably be a more expensive and slower than integrated flash storage. By contrast, it is probably extremely easy to just shove some flash storage chips in a phone. Still, I agree that it sounds like a worthwhile tradeoff for me.


  • premium phones that have SD cards, but there aren’t many options. The only one is a $1400 Xperia I V

    There are other options too, like the fairphone or Galaxy A-series mentioned by others in this thread. They never disappeared, they just became less common because there is less customer demand.

    If you need a phone with a lot of storage or extensible storage, you can get one. There will be a cost associated with that need, but it is not necessary to pay $1400 either. It is hardly anti-consumer to say that a lot of people don’t need this option.

    What you do with your phone is your choice, and if you want to store 1 TB of pictures, audiobooks, or even porn, you should go ahead and do that. All I’m saying is that this is not a typical use case, and you can’t expect any random phone to support it. But there are phones that do, and you should get one.




  • Good point, somehow I completely missed the point you were trying to make about getting samples and analyzing them outside of the original laboratory. That would indeed be completely scientific.

    Somehow taking the samples out of the original laboratory didn’t cross my mind. What I understood was a team going over there to look at the samples. In that case I would be very weary of any possible manipulations, like with magicians’ tricks or such.

    I’m really having issues thinking straight these days with the stress I’ve been under and the stomach flu I just had. Sorry about that brainfart!


  • Sure, but that isn’t the scientific process. Typically a first team publishes what they did and the result they obtained, then others will try to replicate and improve on those results.

    What you describe is interesting, but more of a closed/proprietary approach. A team says they have something and invite others to take a look, and then the second team will need to make sure they aren’t being bamboozled somehow. But until the second team can actually recreate the entire situation, it isn’t very useful to them. They just get to be onlookers, and will remain sceptical that there is some bamboozling being done.