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Cake day: June 18th, 2023

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  • Old guy in the USA. My first car was a sport motorcycle so six speed with clutch and shifter. I have a sedan with an auto trans, but also a 4WD truck with manual. When I learned to drive in my teens automatic transmissions were not as nice as they are now, just three speeds and not very smooth. Now they’re typically six speed and much nicer. I really dislike a manual trans in heavy traffic, quite a chore.


  • I do 76F in the summer for AC and 68F in the winter for heating. Try to use minimal heating and air and still maintain a comfortable range. Can get expensive if working the system too hard. If it wasn’t a matter of cost I’d leave it on 72F all the time.

    Evaporative coolers are great if you live where you can use one, much cheaper to run and they can work pretty good as long as humidity isn’t too high. I had one in a house I lived in before along with a regular AC system. It was a good to have and saved a lot on the electric bill. If it was dry enough out the AC unit was not needed.

    Haven’t used a heat pump before and don’t know much about them. If they work as well and cost less to operate that would be a good option, but I wouldn’t use one if it’s a downgrade in performance. Rather pay for the comfort.



  • They will get rid of all human employees and drive their companies into the ground before they realize ML is supposed to supplement jobs, not take them over completely.

    Exactly, replacing jobs with robots will not end well. It’s been going on for a long time and is about to hit the steep of the curve. Problem is when machines are doing all the work, there’s nobody making money to support the consumer economy a company relies on.

    Even for companies that don’t rely on the consumer market there’s a trickle down. They’re producing for companies that do and their customers will dry up when those companies fail.

    In order for a wholly machine serviced industrial system to work we would need a whole new economic system. That’s not a good thing since we’re talking a situation where everyone is basically a ward of the state. We saw how well that worked for the former USSR.

    Machines need to help people do their jobs, not replace them. The people running these companies have always been notoriously short sighted and it will be their end, ours too. The draw is too big to resist since labor costs are by far the biggest overhead in running a company.

    These modern CEOs need to take a lesson from Henry Ford who’s goal was to close the circle, pay people to make the products they will buy. He pretty much invented the middle class. That idea died in industry a long time ago and nobody is the better for it.


  • In any case digging up fossil fuels is also pretty dirty, and has been known to pollute indigenous people’s drinking water, steal their land, and on occasion pay for private militias and government troops to put down protests.

    There isn’t much in industry exempt from that kind of thing, but countries go to war over access to oil. Anything that reduces consumption is good for mankind.


  • Is LMFP actually available in quantity? Wikipedia suggests not.

    I realized that, I put an edit on there to not specify LMFP which has only been used in EVs in a limited fashion. I was confusing NMC which is actually the most common, oops. I changed it to a generic reference.

    The problem with sodium ion batteries, apart from lower density, is that they have a shorter lifespan.

    I’ve read differing reports on that. But yeah, cycle life is a big deal. In general it’s not great for the common Li-Ion types. LFP has pretty amazing cycle life, about five times greater and rivals the NiMH king. In many cases it’s well worth the additional size and weight, but for things sensitive to it like cars and handheld devices it’s a problem.


  • Also Sodium Ion (Na-Ion) batteries are currently in production and could be a viable alternative as the technology advances and production ramps up.

    Right now Na-Ion batteries rival only the LFP type of Li-Ion battery (lithium-iron-phosphate) having a lower energy density than other Lithium chemistries. LFP is used commonly in utility power storage for its much greater safety and longevity, but it carries about 20% less power for size and weight compared to other lithium chemistries.

    At present the favored battery type for EVs are Lithium types with the highest energy density. Some combine several advantages of the various Li-Ion chemistries having the highest energy density with somewhat greater safety and longevity.

    Na-Ion is a new type of battery chemistry with lots of potential for improvement. They use more sustainable materials being cheaper and more abundant. If they could get the Na-Ion battery type within range of presently used Lithium technologies it would be a hugely better solution, a lot cheaper, a lot safer, and much easier on the environment.


  • rm_dash_r_star@lemm.eetoUplifting News@lemmy.world*Permanently Deleted*
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    10 months ago

    Big difference is a modern sailboat like a ketch or sloop can maintain a straight course as much as 45 degrees into the wind. A Victorian era square rigger is greatly more limited with a range about 60 degrees off either side of downwind. A kite would be even more limited, probably within 45 degrees so it would only be useful when going mostly downwind. Still if it’s cheap and easy to deploy it’s free energy when it can be used. An interesting parallel is the spinnaker sail used on a typical sailboat flies much like a kite and can only be used within a similar downwind range. It’s a very powerful sail when it can be deployed.


  • Stardew Valley: I really enjoy the game and play it on PC. It saves the game only at end of turn which is a game day. If I’m not able to finish my turn I have to put the computer to sleep instead of shut it down. Also if I make a mistake which is easy to do I have to start from the last save which can lose a good amount of progress and sometimes random pickups. Though it’s my only peeve with the game so it’s still doing better than most.



  • Not going to read the article so in response to the comment, electric bicycles put people in a strange place in terms of safety. You’ve got the speeds of a motorcycle without the ability to flow with traffic. In the presence of high density traffic I’d say an e-bike is more dangerous than a motorcycle.

    I’ve been a motorcyclist most of my life and I can say you have to be super vigilant about situational awareness and ready to evade at all times. People driving in cars are not programmed to notice motorcycles. They’re always looking for cars and sometimes don’t register other hazards. It shouldn’t be that way, but nothing is going to change that as long as human beings are driving.

    My recommendation to anyone who wants to use an e-bike for regular transportation is just go to a motorcycle, it’s going to be much safer in traffic. There’s some really nice electric motorcycles now. For e-bike users you have to be extra careful. Drivers don’t see bicyclists anyway and you’re going a lot faster most of the time. A head injury at 10 mph can be fatal.







  • I would say this is likely not a practical super conductor… But it may well be the first ever room temperature super conductor.

    Yes of course it would be a big deal if they create one to begin with. However if it’s difficult and expensive to produce, that’s not much help. It has to be mass producible and inexpensive to have industrial significance. I mean we already have expensive solutions. Don’t need any more of those.

    The first semi-conductors were not practical either, but we can all see where that led!

    I don’t know that semiconductors are a good parallel. Growing the crystals dates back to the early 1900s and was never an expensive or technologically difficult process. Doping silicon to create devices like diodes and transistors was something new, but was not exceedingly expensive or a great technological challenge. The migration to chips which require lithographic doping was more of a challenge.

    In any case semiconductor devices were practical shortly after development. One of the first consumer products that used them was the “transistor radio” which was inexpensive and came out shortly after invention of the technology.




  • Dogs were instrumental in early human survival and they’ve benefited for it. There’s almost a billion dogs in the world, but only a quarter million wolves. So in a natural selective sense that was a good move wolves made by becoming companions with humans.

    Behavior has been bred into dogs going way back to the beginning. Fetch is one of those behaviors. I recently watched a documentary that showed the unique interaction of dogs with humans. Dogs are really good at understanding human body language. For example you can point at something and a dog will cue on it. No other animals reliably respond to that gesture, even chimpanzees which are genetically closest to us.