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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.











  • 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.





  • When I did a couple events with habitat for humanity, I met a number of people highly involved in other local charities.

    I think volunteering is a good way to meet people who regularly volunteer. That’s the crowd that is likely to know what all is going on in your area. Learning about organizations through volunteers will also give you a good idea for which groups are actually working with their community directly and which ones are more talk and less action.

    So I would recommend finding a group to volunteer with to get started, and you can switch to causes that more closely align with your interests once you start making connections. Habitat for humanity, food banks, local environmental cleanup days are all easy to find just about everywhere.