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Joined 3 years ago
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Cake day: July 5th, 2023

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  • There are a bunch of lithium ion chemistries that have come to market more recently.

    LFP sits in the low cost marker while NCA is the highest performing of the mass market batteries, and NMC is somewhere in between.

    Sodium might be coming for LFP’s low cost position, and is already beginning mass production (some Chinese manufacturers expect those models to hit the road in a few months).

    If you think rechargeable battery R&D from 10 years ago isn’t making it into mass produced products today, you’re just not paying attention.



  • GamingChairModel@lemmy.worldtomemes@lemmy.worldThe audacity
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    8 days ago

    I never needed more because I just had a dock. My monitor, keyboard, mouse, and Ethernet cable stayed in the same place, so I’d just bring my laptop home and plug in a thunderbolt dock, and I’d have every peripheral I needed. And I’m someone who tries to use wired stuff over wireless whenever convenient.



  • definitely not for sensitive work.

    I would argue that desktop software capable of doing this (storing and using past pixel values to calculate some sort of output) violates the principle of least privilege, so that an OS that supports this kind of screensaver being possible shouldn’t be used for sensitive data, even if that particular screensaver is disabled.

    Better to harden the OS so that programs (including screensavers) can’t access and store the continuous screen output.

    That’s one of the problems we have with Windows Recall. We don’t even want the OS to have the capability, because we don’t want that data being copied and processed somewhere on the machine.








  • Fahrenheit today is literally defined through Celsius

    The same as pretty much every unit they use

    At this point, that’s basically every unit other than the seven fundamental units. Degrees Celsius is defined from the fundamental unit Kelvin.

    Plus the actual definitions of those fundamental units were defined based on historical measurements tied to former definitions. Today the second is defined around the frequency of the cesium-133 atom, but it was traditionally measured as 1/(60 x 60 x 24) of the time of a single rotation of the earth, which stopped serving us when we realized the rotations had too much variation between days. The meter is currently defined around the speed of light and the second, but was previously defined in terms of what they thought the Earth’s circumference was, and then a metal bar they kept in Paris, then based on the wavelength of light emitted from a transition in krypton-86. Same with the kilogram, currently kept at Planck’s constant but previously based on a particular chunk of metal that was mysteriously losing mass over time, and before that defined from the density of 4°C water and the definition of the meter.

    Conventions are important. The history of how we got to particular conventions can often be messy.




  • Ok, first off, a lion…swimming in the ocean? Lions don’t even like water. If you placed it near a river, or some sort of fresh water source, that’d make sense. But you find yourself in the ocean, a 20 ft wave, I’m assuming it’s off the coast of South Africa, coming up against a full grown, 800 lb tuna with his 20 or 30 friends. You lose that battle. You lose that battle nine times out of ten. And guess what, you wandered into our school of tuna and we now have a taste of blood! We’ve talked to ourselves. We’ve communicated and said, “you know what? Lion tastes good. Let’s go get some more lion.” We’ve developed a system, to establish a beachhead and aggressively hunt you and your family. And we will corner your, your pride, your children, your offspring…”

    How ya gonna do that?

    We will construct a series of breathing apparatus with kelp. We will be able to trap certain amounts of oxygen. It’s not going to be days at a time, an hour, hour 45. No problem. That will give us enough time to figure out where you live, go back to the sea, get more oxygen and then stalk you. You just lost at your own game. You are out gunned and outmanned.