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Cake day: August 8th, 2023

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  • Totally, and I think that’s why they thought it was worth a press release. In the article they go right to how they’re setting a new power density record with this design.

    Electric motors are just really power dense. The article says they managed a short term peak of 1,000 hp with that little flat 12.7kg motor and the continuous output could still be half that.

    Just the cooling must be crazy.

    Out of curiosity I looked up something comparable. It looks like high-performance integrated drive units that have other stuff like the single-speed gearbox, differential, and inverter are still only in the dozens of kg.


  • The voltage/hp comparison there doesn’t really fit.

    Power is in watts or horsepower. You multiply the torque with the RPM and a scaling factor to get power.

    A higher voltage system could probably be expected to produce more torque and power from the same size motor, but a lot depends on the design of the motor.

    Then to answer “how much torque though,” I haven’t looked into it but electric motors have a very nice torque curve across the RPM range. If a motor made all that power with low torque, then it must spin at super high RPM and need to be geared down.





  • It’s funny how often I see a headline like this, then think to myself “now, now, let’s be reasonable and give them the benefit of the doubt because crazy situations happen every day…”

    aside: You see, growing up in white conservative christian america, my brain has this old deep conditioning to see people who are different looking or who have different priorities in life than me and think of how stupid/worthless that makes them. I have those neural pathways pretty safely contained, but it’s important to do maintenance.

    Anyways, I often think to myself oh hey they aren’t just mind numbingly stupid and surely there’s something else going on. Then I read the details and it’s like every sentence pushes my face closer to my silly optimistic assumptions bellowing “search your feelings, you know it to be true” like some really heavy-handed metaphor about feeling the call of the dark side.

    Nah, I guess I do know how stupid they are. But their stupidity isn’t gonna frustrate me into being like them again.


  • When I switched over my home desktop to Mint, it was a very short time before I looked at Windows and said “I’m too old for this shit.” I mean, the reason I am a Mint fan in the first place is that I am a FOSS loving nerd but with a family and pets and hobbies and a career and a middle aged energy level. The decades I’ve spent fixing Windows based PCs is enough for a lifetime, thx.

    I say consolidate old files you want to keep. Shuffle them between drives as necessary to be able to format everything. Go all ext4 on the drives you already have. (once you’re ready)

    This is the way.







  • That’s right about observation events. They are often called interactions instead.

    But the wave-particle duality applies to literally everything at the quantum level, per the standard model and quantum field theory anyway. And that’s a model with an incredible track record.

    Looking at a particle as a wave is usually in the context of that particle by itself moving in a straight line through a vacuum. There isn’t really vibration and temperature; there aren’t even atoms! You just have the particle’s energy in eV.

    Whether we can subjectively compare the packets of energy in quantum fields with the waves of energy through matter, I have no idea. The math is solid though.