• 0 Posts
  • 34 Comments
Joined 2 years ago
Cake day: August 18th, 2023
  • ColeSloth@discuss.tchncs.detoFediverse@lemmy.world•we need more usersEnglish
    43·
    4 days ago

    Part of the issue (I feel a large part ) is that the learning curve is too steep to get on Lemmy

    Now I’m not saying it’s hard at all; but it’s significantly higher than simply “go to a main page and create a user name and password”. Lemmy needs a sign up page that just random signs you up to an active instance (per the instances permission) and automatically subscribes you to the 50 most active instances to just get you started up.

    Making a getting started page that’s as idiot proof as any .com would probably go a long ways into upping our numbers here.

  • ColeSloth@discuss.tchncs.detoElectric Vehicles@slrpnk.net•Yes, Electric Cars Are Good in Winter, and I Drove in the Arctic to Prove It
    62·
    24 days ago

    Such a dumb article. The ev problem in the cold is the range and charge speed. Not the weight or anything else. Lithium batteries take more damage charging and discharging in the cold. It also wastes a lot of battery to keep the battery and passenger compartment warm, and it will charge slower with a lower maximum capacity in the cold.

    Bottom line is that if you have a 500km range ev, you shouldn’t expect it to be able to go further than 300km in extremely cold weather, or have the same amount of torque\power. Even worse if it’s been left unplugged and outside. This won’t ever change with a wet cell lithium battery. Other ev batteries are slowly starting to crop up.

  • ColeSloth@discuss.tchncs.detoElectric Vehicles@slrpnk.net•BYD officially unveils the 3000-horsepower Yangwang U9 Xtreme
    131·
    2 months ago

    He left out an important data point with all of his math. One he doesn’t have any data on. He failed to account for down force created by the vehicle. He completely ignored it. Downforce completely changes breakaway speeds on the tires.

    As to why it gets slower times than a thousand hp car on the track, it’s simple. The car weighs MUCH more. Like 2,000 pounds more. That makes braking and turning and acceleration slower (but there’s plenty of power to overcome the acceleration) and like what he did touch on, the battery isn’t large enough to go “all out” on this track without running out of juice.

    If the byd car could use magic to make it weigh as little as the zr1 and not be battery capacity limited, it would wipe the floor with the zr1.

    So yes, 3,000hp and all wheel drive is a benefit. It just can’t overcome the weight difference through all the turns and deceleration on the track.