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Cake day: July 1st, 2023

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  • This is handled by the inverter and charging modules, some use FPGA chips others use dedicated ASICs, but it doesn’t require anything wild in terms of raw compute power, mostly up to having good algorithms to handle the situations correctly. Nothing more than a modern ICE engine which needs to very precisely manage intake and exhaust cam phasing, ignition timing, intake pressure, and multiple injections per cylinder/cycle along with monitoring a multitude of sensors to keep everything in tolerance. In terms of simplicity, the first automobiles at the turn of the century were electric before the ICE caught on thanks to the advent of the electric starter and limitations in battery technology at the time.


  • Not sure if the /s was left off or this was a serious question.

    In the case it was a serious question, the first issue that comes to mind is when you seed clouds for one region, what happens to the next region downwind where the clouds would have rained without intervention? You are just moving the drought, there will still be a difference in the rain pattern somewhere.

    Seeding to generate more cloud cover at a global scale introduces a whole host of problems. Firstly, you lower the solar output which then means solar power generation will be less effective. That energy will need to be produced by some means, which right now fossil fuels would be the most likely to take up the deficit, increasing atmospheric carbon output. Then to compound problems further, the reduced solar radiation reaching the surface would have a number of impacts such as plant growth being slowed reducing their CO2 uptake, less moisture being evaporated for precipitation over land masses, wind patterns being changed, and wind speeds reduced which means even further reduction in renewable energy generation. So with today’s technology seeding clouds would end up compounding the issues in the long term and accelerate the already alarming changes.



  • skysurfer@lemmy.worldtoTechnology@lemmy.worldRoku got hacked
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    8 months ago

    The headline is misleading. Roku didn’t get hacked and leak accounts. There were ~15000 customers that had accounts accessed due to credential stuffing. Aka, they reused passwords on other sites that had leaks and hackers tried those credentials on their Roku accounts and got into them.



  • I wonder if there is something going on with scheduling waits that is impacting the audio process. I would first try upping the CPU units in Processors->Advanced settings for the VM, bump it to something like 200. Otherwise, if you over subscribing your CPU cores, try temporarily dropping the number of cores subbed out to your VMs to match the physical host to see if it helps, since that could help resolve scheduling issues as well.



  • Due to electric drivetrains having minimal fixed losses at low speed unlike internal combustion engines. Aerodynamic losses start becoming the largest factor for EVs at relatively low speeds (25-35 MPH) since other losses at so low. This shows up on tests as higher city efficiency and lower highway.

    For an internal combustion engine you are burning a large amount of energy just to keep the engine running, so the slower the speed, the less distance traveled for the fixed amount of running losses and lower the MPG. It isn’t until higher speeds (55-65 MPH) that aerodynamic losses become the largest factor. This manifests as lower efficiency in the city tests and higher highway.