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Cake day: September 14th, 2023

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  • A relay switch could work. You would put the car 12V and ground across the coil connections, the 12V on the NO connection, the panel on the NC connection, and the power pack on the C connection. Make sure you get a 12VDC relay.

    Are you going to have the panel installed permanently on your car?

    Definitely don’t connect a 24V source directly to your cars 12V system. There’s a good chance of frying something important. A fuse would not protect from overvoltage so don’t rely on those to protect components.


  • I lived in an area that was going to start strip mining for sand that was the right consistency for fracking. Plenty of conservatives were amongst the loudest opponents. There’s plenty of hypocracy, no need to exaggerate. Their reasons were not wanting to have so much heavy equipment on the roads and fear of silicosis, not opposing natural gas extraction.












  • Fermion@mander.xyztoReddit@lemmy.world*Permanently Deleted*
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    5 months ago

    If an upvote is an “I like this” button, then it’s bad UX design to expect people to not use the downvote as an “I don’t like this button.” If there needs to be an “off topic” button then it shouldn’t be styled and placed to look like the exact opposite of the “I like this” button.




  • I could be wrong, but I think XRD requires very pure crystals of sufficiently large size. That can help you ascertain the structure and composition of something you can synthesize and crystalize, but I don’t believe xrd can image specific regions of interest like single doping sites like this article talks about.

    Synchrotron XRD also has a major drawback in having a very significant equipment requirement that requires being able send samples away for analysis at a dedicated facility. That puts limits on sample preparation and stability time, as well as sharing beam time with lots of other groups.

    It’s been a while since I’ve read up on synchrotron xray diffraction though, so there could be workarounds for some of those limitation or I could be misremembering details.