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Cake day: July 1st, 2023

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  • 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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    4 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.




  • 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.