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Joined 1 year ago
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Cake day: August 2nd, 2023

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  • Electrical engineer here. I love extra large batteries in my phones, kept my LG v20 way longer than I would have otherwise just because I didn’t want to give up my extended battery. If you’re seeing premature battery failure it’s likely either poor quality battery cells, which wouldn’t be unexpected in cheap offbrand batteries, or you’re shortening the batteries lifespan with fast chargers and discharging to 0% frequently.



  • I’ve gotta chime in here with an opposing viewpoint. I got all laser lasik and while it mostly corrected my myopia (went from -5 to -0.5 sph), it gave me really bad astigmatism, to the point where night driving is much more dangerous for me. Glasses were a pain in the ass but at least they made things crystal clear. Post surgery everything except bright sunlight now has an annoying halo. I’m 3 years post surgery btw, and went back under the laser twice to try to get it corrected.


  • Just pointing out that the grid is paid for by your electric bill, roughly half of what you pay is for delivery (paying to maintain the equipment needed to deliver you that energy), the other half is for supply (paying the power plant that generated the energy). So even if you and all your neighbors are energy independent you’ll still be on the hook for at least half your bill, or they’ll have to recoup it in taxes or something.

    Not saying that’s a bad thing, just clarifying a common misconception that going solar should not mean you eliminate your electric bill. In fact many places where solar does offset 100% of your electric bill are ending up with the rich owning solar and the poor paying to maintain the grid for them.


  • Yes and no, the progress of solar array technology continues unabated, with multiple areas of research that are beginning to reach commercial applications. Module conversion efficiencies now are in the 20% range, but heterojunction cells, or Gallium Arsenide, or Perovskites, or any number of other possible advancements could easily put efficiencies up into the 30% range.

    That being said, the price of the solar modules themselves has already shunk to a small piece of the cost to build a solar array, with the bulk of the costs now being the support structures, wiring, electrical equipment, labor, development, etc. And those costs aren’t going to decline, they’d still be there even if the solar panels themselves were free, so they effectively set a floor to the cost reductions we’re seeing.






  • endlessbeard@lemmy.mltoTechnology@lemmy.worldPhones should have FM radio again
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    1 year ago

    I’m going to chime in here to plug the ulefone power armor 18t I just got. I was pretty nervous to get a chinese phone as I’ve only had samsung and lg phones before, but this thing legit blows me away. Not only does it fully support every band that my carrier uses (rare even for phones made for the US market), but it has:

    • Replaceable battery that lasts 3+ days between recharges

    • Extremely rugged, IP69 waterproof and designed for underwater photography (physical shutter button and diving camera app)

    • 3.5mm jack, sd card slot, FM radio (with built in antenna - no headphones need to be plugged in), and an RGB notification led

    • Dimensity 900 chipset that beats a lot of the snapdragon chips on the market.

    • 12 fucking GB of RAM… yes, 12…

    • Wifi 6(ax)

    • Wireless charging and reverse charging

    • A fucking 60x magnification microscope? (Why???)

    • A FLIR thermal camera (Just because, why the fuck not)

    • Runs mostly bloat free stock android

    All that for under $600 (on aliexpress)

    The only thing it’s missing is an IR blaster, otherwise this is the best phone I’ve ever had, bar none. It is a chonky beast though, be warned.

    This has really changed my view on Chinese electronics, especially at a time when phones for the western world are losing features and functionality all the time (including stuff from South Korean). Turns out capitalism isn’t that great for innovation!





  • endlessbeard@lemmy.mltohomeassistant@lemmy.worldCamera suggestions
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    1 year ago

    I have foscam cameras and have been pretty happy with them. Regardless of the brand, make sure you firewall them from the internet or they will phone home.

    Reason I went with foscam was because at the time they were the only brand with an outdoor PoE camera that had a spotlight, 2-way audio, and PIR. Which was what I wanted for an entryway camera. They’ve since discontinued that “SPC” model, so if I had to do it over again I would be just as likely to pick reolink (had shitty luck with amcrest).



  • Everything you’ve suggested is equivalent to re-arranging the deck chairs on the titanic. Climate change is not driven by individual action and can’t be solved by individuals changing their consumption habits. Over 70% of greenhouse gasses are produced by less than 100 companies, companies that have lobbied for public subsidies, socialized their losses with bailouts, outlawed or bought out any competition, laid waste to our countries natural resources, ripped up efficient public transit and infrastructure, and suppressed any change to their fossil fuel monopoly. Changing our course on climate change will mean taking back control from a powerful and entrenched class of people and corporations who control all the legal means you think can be used to hold them accountable.


  • I’m an electrical engineer who designs commercial and Utility Scale PV systems (i.e. Multi acre solar power plants), though I’ve done a couple dozen residential systems as well.

    @evranch@lemmy.ca chimed in with some really good advice, but I wanted to add a few things.

    If I were to do my own system I’d go with micro inverters, enphase IQ8 most likely, as they can be setup to operate during a grid outage, either with a battery backup, or with a load balancing panel.

    Careful of the downfalls of going the DIY route, not sure how it is in your state, but in some states I’ve worked in you will forfeit incentives if you don’t use a qualified installer.

    Get familiar with your utilities net metering policies, if they don’t net meter power at or near retail rates then you’ll end up giving them your power for free/cheap whenever you overgenerate. Some utilities will also make it difficult if you’re not going through a qualified installer.

    Lastly, and this is coming from someone who understands the industry intimately, really take a look at the numbers and decide if this makes sense for you. Most residential solar will take 5-10 years to pay for itself (after incentives) and start to generate a profit. Compare that with the same sum invested in a general s&p500 index fund which would likely have doubled in value during that time.

    Ultimately I decided not to install solar on my home, despite the ability to 100% DIY the whole thing and get parts at steep discounts, and instead installed a backup generator and signed up with a local community solar array (which is not something that all states/utilities allow).

    Happy to answer any questions you may have!