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Joined 1 year ago
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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.









  • Fermion@mander.xyztoReddit@lemmy.world*Permanently Deleted*
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    6 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.






  • The speed of sound in seawater is around 1500m/s or 5400 km/hr. Something tells me they won’t actually be going supersonic.

    The article shouldn’t be referencing the speed of sound without specifying the medium for the sound waves and conditions such as temperature for water or temperature and pressure for air.

    Also, the supercavitation would be incredibly noisy underwater, and at those speeds the vessel itself would produce a very loud pressure wave that would be easy to detect. So its advantage wouldn’t be in avoiding detection, it would be in moving fast enough that detection doesn’t matter because no torpedo could intercept them.




  • Don’t overthink it. Look up faculty and try to find one that teaches introductory courses. Send them an email stating something along the lines that you’re a non student looking to learn a little more than high school introductory terms. Ask if there’s a lecture you could audit or a time like office hours where you could ask questions. A bunch of professors would probably be willing to talk to a flat earther if they were approached on a polite and courteous manner.

    If your interest can’t be satisfied with a question session, you could look into whether a local university has an option for non-degree students to enroll in classes. That’s an option that’s frequently not advertised but is pretty common (at least in the US.)