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Cake day: July 26th, 2023

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  • They are not new technology the idea has been around since at least the 1980s. There is a reason we don’t use them and it’s because they are mechanically complicated and inefficient. Those in terms of power use and maintenance requirements.

    However with the move to renewable energy maybe that efficiency limitation isn’t as much of a problem as it used to be. Especially if it means you can get away from toxic compounds.

    Although I have never seen a commercial grade implementation of the technology. It’s always just been demos that don’t really achieve enough cooling to be anything other than a curiosity.


  • I don’t think shape change materials are all that efficient. The problem being is you still need some mechanism to compress the material again, which obviously uses energy. As you say their main advantage is that they don’t use traditional refrigerants. But the trade-off for that is that they are mechanically more complicated and probably for any given amount of cooling will require more electricity.

    You can trade those off with renewable energy sources of course so it may still be worth it but technically they are worse efficiency than traditional vacuum pumps.




  • Echo Dot@feddit.uktoLemmy Shitpost@lemmy.worldYou don't say.
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    2 days ago

    I feel like that would be a fairly normal response. Elevators are not typically found underwater so finding yourself in an underwater elevator is not going to be a particularly reassuring experience.

    Apart from anything else a cube is not a particularly good shape for holding back water pressure





  • Echo Dot@feddit.uktoGames@lemmy.worldQWOP
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    5 days ago

    I’m now older than both my parents were when I was born. The complaining about the lack of grandchildren has already started.

    Is not in is it? Society won’t let me stay up and play Xbox until midnight anymore, I’m expected to go to work in the morning.




  • Echo Dot@feddit.uktomemes@lemmy.worldSafety
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    7 days ago

    Those are two different things. Tracking the location via cell network just gives an approximate location, anywhere within the cell towers reception area. GPS data doesn’t get shared with anyone unless you choose to share it.

    If companies want your GPS data then you have to share it with them.